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1. Shard Calculation

Query:

Response:

Calculated Shard: 164 (from laksa058)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa164.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.definitivehc.com/blog/most-common-mental-health-diagnoses\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.definitivehc.com/blog/most-common-mental-health-diagnoses\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.definitivehc.com\/blog\/most-common-mental-health-diagnoses","crawl_time":1776093333,"first_indexed_time":1625864823,"http_code":200,"src_unparsed":"com,definitivehc!www,\/blog\/most-common-mental-health-diagnoses s443","src_root_hash":"14169271818396344564","history_drop_reason":null,"meta_title":"Top Mental Health Diagnoses | Most Common Mental Illness","meta_descriptions":["Interested to see what the most common mental illness is? Explore a list of the most common mental health diagnoses and top ICD-10 codes for mental health."],"attrs_boilerpipe_text":"Mental illness impacts millions of people every year. According to the National Alliance of Mental Illness (NAMI), about\n1 in 5\nAmerican adults experience mental illness annually. Moreover, roughly\n1 in 20\nAmerican adults experience serious mental illness. A serious mental illness causes significant impairment, interfering with or limiting at least one major life activity.\nWhile awareness is increasing, there’s still a critical need for new solutions and services to address the growing demand for effective diagnosis, treatment, and management of mental health conditions. Studies suggest that over 50% of patients with a mental illness don’t receive adequate treatment. By investing in mental health solutions and services, companies can not only improve the lives of millions but also tap into a substantial market.\nWhat is an ICD-10 mental illness?\nICD-10\nincludes a comprehensive list of psychiatric illnesses, classified under Chapter V: Mental and Behavioral Disorders. Some common mental health disorders under ICD-10 include anxiety disorders, mood disorders, and substance use disorders, to name a few. Each disorder is further subdivided into specific codes and diagnostic criteria within the ICD-10 framework, which is used globally for diagnosing and coding medical conditions, including psychiatric illnesses.\nDefinitive Healthcare tracks millions of mental health diagnoses at healthcare facilities. Below, we’ve compiled a list of the top 10 mental health diagnoses by total volume of unique diagnosed patients.\nTop 10 most common mental health diagnoses\nRank\nICD-10 code\nDescription\n% of mental health diagnoses in U.S.\n1\nF411\nGeneralized anxiety disorder\n14.10%\n2\nF419\nAnxiety disorder, unspecified\n10.81%\n3\nF331\nMajor depressive disorder, recurrent, moderate\n7.32%\n4\nF902\nAttention-deficit hyperactivity disorder, combined type\n5.08%\n5\nF1120\nOpioid dependence, uncomplicated\n4.51%\n6\nF332\nMajor depressive disorder, recurrent severe without psychotic features\n3.74%\n7\nF32A\nDepression, unspecified\n3.40%\n8\nF900\nAttention-deficit hyperactivity disorder, predominantly inattentive type\n3.33%\n9\nF4323\nAdjustment disorder with mixed anxiety and depressed mood\n3.08%\n10\nF840\nAutistic disorder\n3.03%\nFig. 1 \nData is from the Definitive Healthcare \nAtlas All-Payor Claims\n product for the 2024 calendar year. Data accessed June 2025.\nWhat is the most common mental health diagnosis?\nAccording to our data, anxiety disorders are the most common mental illness tracked in 2024. Generalized anxiety disorder (GAD) took the top spot on our list, representing 14.10% of unique patients with a primary mental health diagnosis tracked in our database. Unspecified anxiety disorder represented 10.81% of unique patients with a primary mental health diagnosis.\nMajor depressive disorder (MDD), both recurrent and moderate (7.32%) and recurrent and severe (3.74%), along with unspecified depression (3.4%), indicate a significant burden of depressive disorders.\nSubstance use disorders are also common, with opioid dependence comprising 4.51% of patients with primary diagnoses tracked in 2023, highlighting the ongoing addiction crisis.\nAttention-deficit hyperactivity disorder (3.33%), adjustment disorder (3.08%), and autism disorder (3.03%) further highlight the diverse range of ICD-10 mental illnesses diagnosed.\nHow did the COVID-19 pandemic impact mental health?\nAs a result of the COVID-19 pandemic, \nmental health worsened\n across populations. A \nstudy published in Brain, Behavior, and Immunity\n found evidence of a multitude of mental health effects, including:\nDecreased psychological well-being across the general public\nPatients with COVID-19 displayed high levels of PTSS and higher levels of depression\nHigher levels of psychiatric symptoms among healthcare workers\nPatients with pre-existing psychiatric symptoms experienced worsened psychiatric symptoms\nSeveral years after the onset of the pandemic, demand for mental health treatment has continued to increase and many psychologists (46%) report no longer having the capacity to see new patients, according to a survey by the American Psychological Association. This trend underscores the urgency for solutions that can expand access to care, creating fertile ground for organizations to develop and deliver mental healthcare interventions.\nTelehealth and mental health\nThe pandemic saw a deterioration in mental health for many, but it also spurred the expansion of\ntelehealth\nin mental healthcare. Telehealth holds promise for increasing access to mental health services by offering a convenient way for people to seek care. By removing barriers associated with traveling to appointments, it also improves service accessibility for people with neurological or physical impairments. Telehealth also provides a private environment for patients, which can encourage more people to seek care.\nLearn more\nMental health will undoubtedly remain an incredibly prevalent and essential area of healthcare as we strive toward better psychological health. \nHealth data and analytics\n can help you stay current with industry trends and developments. Sign up for a\nfree trial\ntoday to get a sample dataset and start discovering opportunities within the growing behavioral health market.","attrs_markdown":"[Skip to main content](https:\/\/www.definitivehc.com\/blog\/most-common-mental-health-diagnoses#main-content)\n\n[![Definitive Healthcare](https:\/\/www.definitivehc.com\/sites\/default\/files\/logo\/DFHC-logo-k.svg)](https:\/\/www.definitivehc.com\/)\n\n- Why Definitive Healthcare?\n  - Overview\n    - [About Us](https:\/\/www.definitivehc.com\/about \"Helping you improve healthcare\")\n      Helping you improve healthcare\n    - [Case Studies](https:\/\/www.definitivehc.com\/case-studies \"Explore real client success stories\")\n      Explore real client success stories\n    - [Careers](https:\/\/www.definitivehc.com\/about\/careers \"We’re hiring – come join our team!\")\n      We’re hiring – come join our team\\!\n  - Data & Technology\n    - [Atlas Dataset](https:\/\/www.definitivehc.com\/why-definitive-healthcare\/data-technology\/atlas-dataset \"Adding clarity to the complex\")\n      Adding clarity to the complex\n    - 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[Sales Enablement: Carevoyance](https:\/\/app.carevoyance.com\/app\/login)\n\n- Log in\n  - [Reference & Affiliations: View](https:\/\/www.defhc.com\/)\n  - [Medical & Scientific Experts: Monocl](https:\/\/app.monocl.com\/)\n  - [Claims & Consumer Analytics: Populi](https:\/\/app.populi.ai\/login)\n  - [Sales Enablement: Carevoyance](https:\/\/app.carevoyance.com\/app\/login)\n\n[Free trial](https:\/\/www.definitivehc.com\/free-trial?rp_source=blog\/most-common-mental-health-diagnoses)\n\n[Free trial](https:\/\/www.definitivehc.com\/free-trial?rp_source=blog\/most-common-mental-health-diagnoses)\n\nStart of Main Content\n\n[View all blogs](https:\/\/www.definitivehc.com\/blog \"View all blogs\")\n\n# Top 10 mental health diagnoses\nJun 11th, 2025\n\nBy  [Nicole Witowski](https:\/\/www.definitivehc.com\/authors\/nicole-witowski)  3 min read\n\n![Top 10 mental health diagnoses in 2022](https:\/\/www.definitivehc.com\/sites\/default\/files\/2024-02\/most-common-mental-health-diagnoses-header.jpg)\n\nMental illness impacts millions of people every year. According to the National Alliance of Mental Illness (NAMI), about [1 in 5](https:\/\/www.nami.org\/NAMI\/media\/NAMI-Media\/Infographics\/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience mental illness annually. Moreover, roughly [1 in 20](https:\/\/www.nami.org\/NAMI\/media\/NAMI-Media\/Infographics\/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience serious mental illness. A serious mental illness causes significant impairment, interfering with or limiting at least one major life activity.\n\nWhile awareness is increasing, there’s still a critical need for new solutions and services to address the growing demand for effective diagnosis, treatment, and management of mental health conditions. Studies suggest that over 50% of patients with a mental illness don’t receive adequate treatment. By investing in mental health solutions and services, companies can not only improve the lives of millions but also tap into a substantial market.\n\n## What is an ICD-10 mental illness?\n[ICD-10](https:\/\/www.definitivehc.com\/resources\/glossary\/icd-10) includes a comprehensive list of psychiatric illnesses, classified under Chapter V: Mental and Behavioral Disorders. Some common mental health disorders under ICD-10 include anxiety disorders, mood disorders, and substance use disorders, to name a few. Each disorder is further subdivided into specific codes and diagnostic criteria within the ICD-10 framework, which is used globally for diagnosing and coding medical conditions, including psychiatric illnesses.\n\nDefinitive Healthcare tracks millions of mental health diagnoses at healthcare facilities. Below, we’ve compiled a list of the top 10 mental health diagnoses by total volume of unique diagnosed patients.\n\n## Top 10 most common mental health diagnoses\n|   |   |   |   |\n|---|---|---|---|\n| **Rank** | **ICD-10 code** | **Description** | **% of mental health diagnoses in U.S.** |\n| 1 | F411 | Generalized anxiety disorder | 14\\.10% |\n| 2 | F419 | Anxiety disorder, unspecified | 10\\.81% |\n| 3 | F331 | Major depressive disorder, recurrent, moderate | 7\\.32% |\n| 4 | F902 | Attention-deficit hyperactivity disorder, combined type | 5\\.08% |\n| 5 | F1120 | Opioid dependence, uncomplicated | 4\\.51% |\n| 6 | F332 | Major depressive disorder, recurrent severe without psychotic features | 3\\.74% |\n| 7 | F32A | Depression, unspecified | 3\\.40% |\n| 8 | F900 | Attention-deficit hyperactivity disorder, predominantly inattentive type | 3\\.33% |\n| 9 | F4323 | Adjustment disorder with mixed anxiety and depressed mood | 3\\.08% |\n| 10 | F840 | Autistic disorder | 3\\.03% |\n\n**Fig. 1** Data is from the Definitive Healthcare [Atlas All-Payor Claims](https:\/\/www.definitivehc.com\/data-products\/claims) product for the 2024 calendar year. Data accessed June 2025.\n\n## What is the most common mental health diagnosis?\nAccording to our data, anxiety disorders are the most common mental illness tracked in 2024. Generalized anxiety disorder (GAD) took the top spot on our list, representing 14.10% of unique patients with a primary mental health diagnosis tracked in our database. Unspecified anxiety disorder represented 10.81% of unique patients with a primary mental health diagnosis.\n\nMajor depressive disorder (MDD), both recurrent and moderate (7.32%) and recurrent and severe (3.74%), along with unspecified depression (3.4%), indicate a significant burden of depressive disorders.\n\nSubstance use disorders are also common, with opioid dependence comprising 4.51% of patients with primary diagnoses tracked in 2023, highlighting the ongoing addiction crisis.\n\nAttention-deficit hyperactivity disorder (3.33%), adjustment disorder (3.08%), and autism disorder (3.03%) further highlight the diverse range of ICD-10 mental illnesses diagnosed.\n\n## How did the COVID-19 pandemic impact mental health?\nAs a result of the COVID-19 pandemic, [mental health worsened](https:\/\/www.definitivehc.com\/blog\/top-10-healthcare-trends-defining-2021) across populations. A [study published in Brain, Behavior, and Immunity](https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0889159120309545) found evidence of a multitude of mental health effects, including:\n\n- Decreased psychological well-being across the general public\n- Patients with COVID-19 displayed high levels of PTSS and higher levels of depression\n- Higher levels of psychiatric symptoms among healthcare workers\n- Patients with pre-existing psychiatric symptoms experienced worsened psychiatric symptoms\n\nSeveral years after the onset of the pandemic, demand for mental health treatment has continued to increase and many psychologists (46%) report no longer having the capacity to see new patients, according to a survey by the American Psychological Association. This trend underscores the urgency for solutions that can expand access to care, creating fertile ground for organizations to develop and deliver mental healthcare interventions.\n\n## Telehealth and mental health\nThe pandemic saw a deterioration in mental health for many, but it also spurred the expansion of [telehealth](https:\/\/www.definitivehc.com\/resources\/healthcare-insights\/hospital-telehealth-adoption-by-state) in mental healthcare. Telehealth holds promise for increasing access to mental health services by offering a convenient way for people to seek care. By removing barriers associated with traveling to appointments, it also improves service accessibility for people with neurological or physical impairments. Telehealth also provides a private environment for patients, which can encourage more people to seek care.\n\n### Learn more\nMental health will undoubtedly remain an incredibly prevalent and essential area of healthcare as we strive toward better psychological health. [Health data and analytics](https:\/\/www.definitivehc.com\/our-approach-healthcare-commercial-intelligence) can help you stay current with industry trends and developments. Sign up for a [free trial](https:\/\/www.definitivehc.com\/free-trial?rp_source=blog\/most-common-mental-health-diagnoses) today to get a sample dataset and start discovering opportunities within the growing behavioral health market.\n\n![Nicole Witowski](https:\/\/www.definitivehc.com\/sites\/default\/files\/2025-06\/Nicole%20Witowski.png)\n\n## About the Author\n### Nicole Witowski\nNicole Witowski is a Senior Content Writer at Definitive Healthcare. She brings more than 10 years of experience writing about the healthcare industry. Her work has been…\n\n[Author profile](https:\/\/www.definitivehc.com\/authors\/nicole-witowski)\n\n[![Real data. Real people. Real impact. 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All Rights Reserved.  [Privacy Center](https:\/\/www.definitivehc.com\/privacy-center)[Do not sell my personal information]()","attrs_readable_markdown":"Mental illness impacts millions of people every year. According to the National Alliance of Mental Illness (NAMI), about [1 in 5](https:\/\/www.nami.org\/NAMI\/media\/NAMI-Media\/Infographics\/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience mental illness annually. Moreover, roughly [1 in 20](https:\/\/www.nami.org\/NAMI\/media\/NAMI-Media\/Infographics\/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience serious mental illness. A serious mental illness causes significant impairment, interfering with or limiting at least one major life activity.\n\nWhile awareness is increasing, there’s still a critical need for new solutions and services to address the growing demand for effective diagnosis, treatment, and management of mental health conditions. Studies suggest that over 50% of patients with a mental illness don’t receive adequate treatment. By investing in mental health solutions and services, companies can not only improve the lives of millions but also tap into a substantial market.\n\n## What is an ICD-10 mental illness?\n[ICD-10](https:\/\/www.definitivehc.com\/resources\/glossary\/icd-10) includes a comprehensive list of psychiatric illnesses, classified under Chapter V: Mental and Behavioral Disorders. Some common mental health disorders under ICD-10 include anxiety disorders, mood disorders, and substance use disorders, to name a few. Each disorder is further subdivided into specific codes and diagnostic criteria within the ICD-10 framework, which is used globally for diagnosing and coding medical conditions, including psychiatric illnesses.\n\nDefinitive Healthcare tracks millions of mental health diagnoses at healthcare facilities. Below, we’ve compiled a list of the top 10 mental health diagnoses by total volume of unique diagnosed patients.\n\n## Top 10 most common mental health diagnoses\n|   |   |   |   |\n|---|---|---|---|\n| **Rank** | **ICD-10 code** | **Description** | **% of mental health diagnoses in U.S.** |\n| 1 | F411 | Generalized anxiety disorder | 14\\.10% |\n| 2 | F419 | Anxiety disorder, unspecified | 10\\.81% |\n| 3 | F331 | Major depressive disorder, recurrent, moderate | 7\\.32% |\n| 4 | F902 | Attention-deficit hyperactivity disorder, combined type | 5\\.08% |\n| 5 | F1120 | Opioid dependence, uncomplicated | 4\\.51% |\n| 6 | F332 | Major depressive disorder, recurrent severe without psychotic features | 3\\.74% |\n| 7 | F32A | Depression, unspecified | 3\\.40% |\n| 8 | F900 | Attention-deficit hyperactivity disorder, predominantly inattentive type | 3\\.33% |\n| 9 | F4323 | Adjustment disorder with mixed anxiety and depressed mood | 3\\.08% |\n| 10 | F840 | Autistic disorder | 3\\.03% |\n\n**Fig. 1** Data is from the Definitive Healthcare [Atlas All-Payor Claims](https:\/\/www.definitivehc.com\/data-products\/claims) product for the 2024 calendar year. Data accessed June 2025.\n\n## What is the most common mental health diagnosis?\nAccording to our data, anxiety disorders are the most common mental illness tracked in 2024. Generalized anxiety disorder (GAD) took the top spot on our list, representing 14.10% of unique patients with a primary mental health diagnosis tracked in our database. Unspecified anxiety disorder represented 10.81% of unique patients with a primary mental health diagnosis.\n\nMajor depressive disorder (MDD), both recurrent and moderate (7.32%) and recurrent and severe (3.74%), along with unspecified depression (3.4%), indicate a significant burden of depressive disorders.\n\nSubstance use disorders are also common, with opioid dependence comprising 4.51% of patients with primary diagnoses tracked in 2023, highlighting the ongoing addiction crisis.\n\nAttention-deficit hyperactivity disorder (3.33%), adjustment disorder (3.08%), and autism disorder (3.03%) further highlight the diverse range of ICD-10 mental illnesses diagnosed.\n\n## How did the COVID-19 pandemic impact mental health?\nAs a result of the COVID-19 pandemic, [mental health worsened](https:\/\/www.definitivehc.com\/blog\/top-10-healthcare-trends-defining-2021) across populations. A [study published in Brain, Behavior, and Immunity](https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0889159120309545) found evidence of a multitude of mental health effects, including:\n\n- Decreased psychological well-being across the general public\n- Patients with COVID-19 displayed high levels of PTSS and higher levels of depression\n- Higher levels of psychiatric symptoms among healthcare workers\n- Patients with pre-existing psychiatric symptoms experienced worsened psychiatric symptoms\n\nSeveral years after the onset of the pandemic, demand for mental health treatment has continued to increase and many psychologists (46%) report no longer having the capacity to see new patients, according to a survey by the American Psychological Association. This trend underscores the urgency for solutions that can expand access to care, creating fertile ground for organizations to develop and deliver mental healthcare interventions.\n\n## Telehealth and mental health\nThe pandemic saw a deterioration in mental health for many, but it also spurred the expansion of [telehealth](https:\/\/www.definitivehc.com\/resources\/healthcare-insights\/hospital-telehealth-adoption-by-state) in mental healthcare. Telehealth holds promise for increasing access to mental health services by offering a convenient way for people to seek care. By removing barriers associated with traveling to appointments, it also improves service accessibility for people with neurological or physical impairments. Telehealth also provides a private environment for patients, which can encourage more people to seek care.\n\n### Learn more\nMental health will undoubtedly remain an incredibly prevalent and essential area of healthcare as we strive toward better psychological health. [Health data and analytics](https:\/\/www.definitivehc.com\/our-approach-healthcare-commercial-intelligence) can help you stay current with industry trends and developments. Sign up for a [free trial](https:\/\/www.definitivehc.com\/free-trial?rp_source=blog\/most-common-mental-health-diagnoses) today to get a sample dataset and start discovering opportunities within the growing behavioral health market.","meta_canonical":null}

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Meta Description	Interested to see what the most common mental illness is? Explore a list of the most common mental health diagnoses and top ICD-10 codes for mental health.
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Boilerpipe Text	Mental illness impacts millions of people every year. According to the National Alliance of Mental Illness (NAMI), about 1 in 5 American adults experience mental illness annually. Moreover, roughly 1 in 20 American adults experience serious mental illness. A serious mental illness causes significant impairment, interfering with or limiting at least one major life activity. While awareness is increasing, there’s still a critical need for new solutions and services to address the growing demand for effective diagnosis, treatment, and management of mental health conditions. Studies suggest that over 50% of patients with a mental illness don’t receive adequate treatment. By investing in mental health solutions and services, companies can not only improve the lives of millions but also tap into a substantial market. What is an ICD-10 mental illness? ICD-10 includes a comprehensive list of psychiatric illnesses, classified under Chapter V: Mental and Behavioral Disorders. Some common mental health disorders under ICD-10 include anxiety disorders, mood disorders, and substance use disorders, to name a few. Each disorder is further subdivided into specific codes and diagnostic criteria within the ICD-10 framework, which is used globally for diagnosing and coding medical conditions, including psychiatric illnesses. Definitive Healthcare tracks millions of mental health diagnoses at healthcare facilities. Below, we’ve compiled a list of the top 10 mental health diagnoses by total volume of unique diagnosed patients. Top 10 most common mental health diagnoses Rank ICD-10 code Description % of mental health diagnoses in U.S. 1 F411 Generalized anxiety disorder 14.10% 2 F419 Anxiety disorder, unspecified 10.81% 3 F331 Major depressive disorder, recurrent, moderate 7.32% 4 F902 Attention-deficit hyperactivity disorder, combined type 5.08% 5 F1120 Opioid dependence, uncomplicated 4.51% 6 F332 Major depressive disorder, recurrent severe without psychotic features 3.74% 7 F32A Depression, unspecified 3.40% 8 F900 Attention-deficit hyperactivity disorder, predominantly inattentive type 3.33% 9 F4323 Adjustment disorder with mixed anxiety and depressed mood 3.08% 10 F840 Autistic disorder 3.03% Fig. 1  Data is from the Definitive Healthcare  Atlas All-Payor Claims  product for the 2024 calendar year. Data accessed June 2025. What is the most common mental health diagnosis? According to our data, anxiety disorders are the most common mental illness tracked in 2024. Generalized anxiety disorder (GAD) took the top spot on our list, representing 14.10% of unique patients with a primary mental health diagnosis tracked in our database. Unspecified anxiety disorder represented 10.81% of unique patients with a primary mental health diagnosis. Major depressive disorder (MDD), both recurrent and moderate (7.32%) and recurrent and severe (3.74%), along with unspecified depression (3.4%), indicate a significant burden of depressive disorders. Substance use disorders are also common, with opioid dependence comprising 4.51% of patients with primary diagnoses tracked in 2023, highlighting the ongoing addiction crisis. Attention-deficit hyperactivity disorder (3.33%), adjustment disorder (3.08%), and autism disorder (3.03%) further highlight the diverse range of ICD-10 mental illnesses diagnosed. How did the COVID-19 pandemic impact mental health? As a result of the COVID-19 pandemic,  mental health worsened  across populations. A  study published in Brain, Behavior, and Immunity  found evidence of a multitude of mental health effects, including: Decreased psychological well-being across the general public Patients with COVID-19 displayed high levels of PTSS and higher levels of depression Higher levels of psychiatric symptoms among healthcare workers Patients with pre-existing psychiatric symptoms experienced worsened psychiatric symptoms Several years after the onset of the pandemic, demand for mental health treatment has continued to increase and many psychologists (46%) report no longer having the capacity to see new patients, according to a survey by the American Psychological Association. This trend underscores the urgency for solutions that can expand access to care, creating fertile ground for organizations to develop and deliver mental healthcare interventions. Telehealth and mental health The pandemic saw a deterioration in mental health for many, but it also spurred the expansion of telehealth in mental healthcare. Telehealth holds promise for increasing access to mental health services by offering a convenient way for people to seek care. By removing barriers associated with traveling to appointments, it also improves service accessibility for people with neurological or physical impairments. Telehealth also provides a private environment for patients, which can encourage more people to seek care. Learn more Mental health will undoubtedly remain an incredibly prevalent and essential area of healthcare as we strive toward better psychological health.  Health data and analytics  can help you stay current with industry trends and developments. Sign up for a free trial today to get a sample dataset and start discovering opportunities within the growing behavioral health market.
Markdown	[Skip to main content](https://www.definitivehc.com/blog/most-common-mental-health-diagnoses#main-content) [![Definitive Healthcare](https://www.definitivehc.com/sites/default/files/logo/DFHC-logo-k.svg)](https://www.definitivehc.com/) - Why Definitive Healthcare? - Overview - [About Us](https://www.definitivehc.com/about "Helping you improve healthcare") Helping you improve healthcare - [Case Studies](https://www.definitivehc.com/case-studies "Explore real client success stories") Explore real client success stories - [Careers](https://www.definitivehc.com/about/careers "We’re hiring – come join our team!") 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According to the National Alliance of Mental Illness (NAMI), about [1 in 5](https://www.nami.org/NAMI/media/NAMI-Media/Infographics/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience mental illness annually. Moreover, roughly [1 in 20](https://www.nami.org/NAMI/media/NAMI-Media/Infographics/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience serious mental illness. A serious mental illness causes significant impairment, interfering with or limiting at least one major life activity. While awareness is increasing, there’s still a critical need for new solutions and services to address the growing demand for effective diagnosis, treatment, and management of mental health conditions. Studies suggest that over 50% of patients with a mental illness don’t receive adequate treatment. By investing in mental health solutions and services, companies can not only improve the lives of millions but also tap into a substantial market. ## What is an ICD-10 mental illness? [ICD-10](https://www.definitivehc.com/resources/glossary/icd-10) includes a comprehensive list of psychiatric illnesses, classified under Chapter V: Mental and Behavioral Disorders. Some common mental health disorders under ICD-10 include anxiety disorders, mood disorders, and substance use disorders, to name a few. Each disorder is further subdivided into specific codes and diagnostic criteria within the ICD-10 framework, which is used globally for diagnosing and coding medical conditions, including psychiatric illnesses. Definitive Healthcare tracks millions of mental health diagnoses at healthcare facilities. Below, we’ve compiled a list of the top 10 mental health diagnoses by total volume of unique diagnosed patients. ## Top 10 most common mental health diagnoses \| \| \| \| \| \|---\|---\|---\|---\| \| Rank \| ICD-10 code \| Description \| % of mental health diagnoses in U.S. \| \| 1 \| F411 \| Generalized anxiety disorder \| 14\.10% \| \| 2 \| F419 \| Anxiety disorder, unspecified \| 10\.81% \| \| 3 \| F331 \| Major depressive disorder, recurrent, moderate \| 7\.32% \| \| 4 \| F902 \| Attention-deficit hyperactivity disorder, combined type \| 5\.08% \| \| 5 \| F1120 \| Opioid dependence, uncomplicated \| 4\.51% \| \| 6 \| F332 \| Major depressive disorder, recurrent severe without psychotic features \| 3\.74% \| \| 7 \| F32A \| Depression, unspecified \| 3\.40% \| \| 8 \| F900 \| Attention-deficit hyperactivity disorder, predominantly inattentive type \| 3\.33% \| \| 9 \| F4323 \| Adjustment disorder with mixed anxiety and depressed mood \| 3\.08% \| \| 10 \| F840 \| Autistic disorder \| 3\.03% \| Fig. 1 Data is from the Definitive Healthcare [Atlas All-Payor Claims](https://www.definitivehc.com/data-products/claims) product for the 2024 calendar year. Data accessed June 2025. ## What is the most common mental health diagnosis? According to our data, anxiety disorders are the most common mental illness tracked in 2024. Generalized anxiety disorder (GAD) took the top spot on our list, representing 14.10% of unique patients with a primary mental health diagnosis tracked in our database. Unspecified anxiety disorder represented 10.81% of unique patients with a primary mental health diagnosis. Major depressive disorder (MDD), both recurrent and moderate (7.32%) and recurrent and severe (3.74%), along with unspecified depression (3.4%), indicate a significant burden of depressive disorders. Substance use disorders are also common, with opioid dependence comprising 4.51% of patients with primary diagnoses tracked in 2023, highlighting the ongoing addiction crisis. Attention-deficit hyperactivity disorder (3.33%), adjustment disorder (3.08%), and autism disorder (3.03%) further highlight the diverse range of ICD-10 mental illnesses diagnosed. ## How did the COVID-19 pandemic impact mental health? As a result of the COVID-19 pandemic, [mental health worsened](https://www.definitivehc.com/blog/top-10-healthcare-trends-defining-2021) across populations. A [study published in Brain, Behavior, and Immunity](https://www.sciencedirect.com/science/article/pii/S0889159120309545) found evidence of a multitude of mental health effects, including: - Decreased psychological well-being across the general public - Patients with COVID-19 displayed high levels of PTSS and higher levels of depression - Higher levels of psychiatric symptoms among healthcare workers - Patients with pre-existing psychiatric symptoms experienced worsened psychiatric symptoms Several years after the onset of the pandemic, demand for mental health treatment has continued to increase and many psychologists (46%) report no longer having the capacity to see new patients, according to a survey by the American Psychological Association. This trend underscores the urgency for solutions that can expand access to care, creating fertile ground for organizations to develop and deliver mental healthcare interventions. ## Telehealth and mental health The pandemic saw a deterioration in mental health for many, but it also spurred the expansion of [telehealth](https://www.definitivehc.com/resources/healthcare-insights/hospital-telehealth-adoption-by-state) in mental healthcare. Telehealth holds promise for increasing access to mental health services by offering a convenient way for people to seek care. By removing barriers associated with traveling to appointments, it also improves service accessibility for people with neurological or physical impairments. Telehealth also provides a private environment for patients, which can encourage more people to seek care. ### Learn more Mental health will undoubtedly remain an incredibly prevalent and essential area of healthcare as we strive toward better psychological health. [Health data and analytics](https://www.definitivehc.com/our-approach-healthcare-commercial-intelligence) can help you stay current with industry trends and developments. Sign up for a [free trial](https://www.definitivehc.com/free-trial?rp_source=blog/most-common-mental-health-diagnoses) today to get a sample dataset and start discovering opportunities within the growing behavioral health market. ![Nicole Witowski](https://www.definitivehc.com/sites/default/files/2025-06/Nicole%20Witowski.png) ## About the Author ### Nicole Witowski Nicole Witowski is a Senior Content Writer at Definitive Healthcare. She brings more than 10 years of experience writing about the healthcare industry. Her work has been… [Author profile](https://www.definitivehc.com/authors/nicole-witowski) [![Real data. Real people. Real impact. Book a demo](https://www.definitivehc.com/sites/default/files/2025-11/real-blog-ad-book-a-demo.jpg)](https://www.definitivehc.com/demo?rp_source=blog/most-common-mental-health-diagnoses) ## You might also be interested in... ![A female healthcare worker in blue scrubs smiles as she takes the pulse oximetry reading of an elderly male patient.](https://www.definitivehc.com/sites/default/files/2026-04/national-public-health-week-data.jpg) ### [National Public Health Week 2026: The role of data in advancing public health](https://www.definitivehc.com/blog/national-public-health-week-data) Written by Alex Card 4 min read Read more ![reference-affiliation-data-101-what-you-need-to-know\_HP](https://www.definitivehc.com/sites/default/files/2026-03/reference-affiliation-data-101-what-you-need-to-know.jpg) ### [Reference & affiliation data 101: What you need to know](https://www.definitivehc.com/blog/healthcare-reference-affiliation-data-101) Written by Nicole Witowski 4 min read Read more ![White text on a black background reads: "4 key themes from ViVE 2026"](https://www.definitivehc.com/sites/default/files/2026-03/4-key-themes-from-ViVE-2026.png) ### [4 key themes from ViVE 2026](https://www.definitivehc.com/blog/vive-healthcare-recap) Written by Alex Card 6 min read Read more [See all our blog posts](https://www.definitivehc.com/blog) ![Definitive Healthcare logo](https://www.definitivehc.com/sites/default/files/DFHC-logo-k.svg) ## Get the Definitive picture of Healthcare. 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Readable Markdown	Mental illness impacts millions of people every year. According to the National Alliance of Mental Illness (NAMI), about [1 in 5](https://www.nami.org/NAMI/media/NAMI-Media/Infographics/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience mental illness annually. Moreover, roughly [1 in 20](https://www.nami.org/NAMI/media/NAMI-Media/Infographics/NAMI_2020MH_ByTheNumbers_Adults-r.pdf) American adults experience serious mental illness. A serious mental illness causes significant impairment, interfering with or limiting at least one major life activity. While awareness is increasing, there’s still a critical need for new solutions and services to address the growing demand for effective diagnosis, treatment, and management of mental health conditions. Studies suggest that over 50% of patients with a mental illness don’t receive adequate treatment. By investing in mental health solutions and services, companies can not only improve the lives of millions but also tap into a substantial market. ## What is an ICD-10 mental illness? [ICD-10](https://www.definitivehc.com/resources/glossary/icd-10) includes a comprehensive list of psychiatric illnesses, classified under Chapter V: Mental and Behavioral Disorders. Some common mental health disorders under ICD-10 include anxiety disorders, mood disorders, and substance use disorders, to name a few. Each disorder is further subdivided into specific codes and diagnostic criteria within the ICD-10 framework, which is used globally for diagnosing and coding medical conditions, including psychiatric illnesses. Definitive Healthcare tracks millions of mental health diagnoses at healthcare facilities. Below, we’ve compiled a list of the top 10 mental health diagnoses by total volume of unique diagnosed patients. ## Top 10 most common mental health diagnoses \| \| \| \| \| \|---\|---\|---\|---\| \| Rank \| ICD-10 code \| Description \| % of mental health diagnoses in U.S. \| \| 1 \| F411 \| Generalized anxiety disorder \| 14\.10% \| \| 2 \| F419 \| Anxiety disorder, unspecified \| 10\.81% \| \| 3 \| F331 \| Major depressive disorder, recurrent, moderate \| 7\.32% \| \| 4 \| F902 \| Attention-deficit hyperactivity disorder, combined type \| 5\.08% \| \| 5 \| F1120 \| Opioid dependence, uncomplicated \| 4\.51% \| \| 6 \| F332 \| Major depressive disorder, recurrent severe without psychotic features \| 3\.74% \| \| 7 \| F32A \| Depression, unspecified \| 3\.40% \| \| 8 \| F900 \| Attention-deficit hyperactivity disorder, predominantly inattentive type \| 3\.33% \| \| 9 \| F4323 \| Adjustment disorder with mixed anxiety and depressed mood \| 3\.08% \| \| 10 \| F840 \| Autistic disorder \| 3\.03% \| Fig. 1 Data is from the Definitive Healthcare [Atlas All-Payor Claims](https://www.definitivehc.com/data-products/claims) product for the 2024 calendar year. Data accessed June 2025. ## What is the most common mental health diagnosis? According to our data, anxiety disorders are the most common mental illness tracked in 2024. Generalized anxiety disorder (GAD) took the top spot on our list, representing 14.10% of unique patients with a primary mental health diagnosis tracked in our database. Unspecified anxiety disorder represented 10.81% of unique patients with a primary mental health diagnosis. Major depressive disorder (MDD), both recurrent and moderate (7.32%) and recurrent and severe (3.74%), along with unspecified depression (3.4%), indicate a significant burden of depressive disorders. Substance use disorders are also common, with opioid dependence comprising 4.51% of patients with primary diagnoses tracked in 2023, highlighting the ongoing addiction crisis. Attention-deficit hyperactivity disorder (3.33%), adjustment disorder (3.08%), and autism disorder (3.03%) further highlight the diverse range of ICD-10 mental illnesses diagnosed. ## How did the COVID-19 pandemic impact mental health? As a result of the COVID-19 pandemic, [mental health worsened](https://www.definitivehc.com/blog/top-10-healthcare-trends-defining-2021) across populations. A [study published in Brain, Behavior, and Immunity](https://www.sciencedirect.com/science/article/pii/S0889159120309545) found evidence of a multitude of mental health effects, including: - Decreased psychological well-being across the general public - Patients with COVID-19 displayed high levels of PTSS and higher levels of depression - Higher levels of psychiatric symptoms among healthcare workers - Patients with pre-existing psychiatric symptoms experienced worsened psychiatric symptoms Several years after the onset of the pandemic, demand for mental health treatment has continued to increase and many psychologists (46%) report no longer having the capacity to see new patients, according to a survey by the American Psychological Association. This trend underscores the urgency for solutions that can expand access to care, creating fertile ground for organizations to develop and deliver mental healthcare interventions. ## Telehealth and mental health The pandemic saw a deterioration in mental health for many, but it also spurred the expansion of [telehealth](https://www.definitivehc.com/resources/healthcare-insights/hospital-telehealth-adoption-by-state) in mental healthcare. Telehealth holds promise for increasing access to mental health services by offering a convenient way for people to seek care. By removing barriers associated with traveling to appointments, it also improves service accessibility for people with neurological or physical impairments. Telehealth also provides a private environment for patients, which can encourage more people to seek care. ### Learn more Mental health will undoubtedly remain an incredibly prevalent and essential area of healthcare as we strive toward better psychological health. [Health data and analytics](https://www.definitivehc.com/our-approach-healthcare-commercial-intelligence) can help you stay current with industry trends and developments. Sign up for a [free trial](https://www.definitivehc.com/free-trial?rp_source=blog/most-common-mental-health-diagnoses) today to get a sample dataset and start discovering opportunities within the growing behavioral health market.
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