Chapter 6: Mental, Behavioural or Neurodevelopmental Disorders
ICD-11 to ICD-10 crosswalk mappings for codes 6A00-6E8Z
188 ICD-11 codes in this chapter have ICD-10 crosswalk mappings from the WHO.
Covers all mental health conditions including depression, anxiety, PTSD, bipolar disorder, schizophrenia, ADHD, autism spectrum disorder, substance use disorders, and personality disorders. ICD-11 aligns more closely with DSM-5 and introduces gaming disorder and complex PTSD.
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6A00-6A0Z: Neurodevelopmental disorders
20 codes with ICD-10 mappings
6A00.0Disorder of intellectual development, mild5 mappings6A00.1Disorder of intellectual development, moderate5 mappings6A00.2Disorder of intellectual development, severe5 mappings6A00.3Disorder of intellectual development, profound5 mappings6A00.ZDisorders of intellectual development, unspecified11 mappings6A01.0Developmental speech sound disorder1 mapping6A01.1Developmental speech fluency disorder2 mappings6A01.20Developmental language disorder with impairment of receptive and expressive language1 mapping6A01.21Developmental language disorder with impairment of mainly expressive language1 mapping6A01.ZDevelopmental speech or language disorders, unspecified3 mappings6A02.0Autism spectrum disorder without disorder of intellectual development and with mild or no impairment of functional language1 mapping6A02.ZAutism spectrum disorder, unspecified2 mappings6A03.0Developmental learning disorder with impairment in reading1 mapping6A03.1Developmental learning disorder with impairment in written expression1 mapping6A03.2Developmental learning disorder with impairment in mathematics1 mapping6A03.ZDevelopmental learning disorder, unspecified4 mappings6A04Developmental motor coordination disorder1 mapping6A05.ZAttention deficit hyperactivity disorder, presentation unspecified4 mappings6A06.ZStereotyped movement disorder, unspecified1 mapping6A0ZNeurodevelopmental disorders, unspecified10 mappings
6A20-6A2Z: Schizophrenia or other primary psychotic disorders
6 codes with ICD-10 mappings
6A20.ZSchizophrenia, episode unspecified9 mappings6A21.ZSchizoaffective disorder, unspecified6 mappings6A22Schizotypal disorder1 mapping6A23.ZAcute and transient psychotic disorder, unspecified7 mappings6A24.ZDelusional disorder, unspecified5 mappings6A2ZSchizophrenia or other primary psychotic disorders, unspecified4 mappings
6A40-6A4Z: Catatonia
1 code with ICD-10 mappings
6A60-6A6Z: Bipolar or related disorders
10 codes with ICD-10 mappings
6A60.0Bipolar type I disorder, current episode manic, without psychotic symptoms1 mapping6A60.1Bipolar type I disorder, current episode manic, with psychotic symptoms1 mapping6A60.2Bipolar type I disorder, current episode hypomanic1 mapping6A60.3Bipolar type I disorder, current episode depressive, mild1 mapping6A60.6Bipolar type I disorder, current episode depressive, severe without psychotic symptoms1 mapping6A60.7Bipolar type I disorder, current episode depressive, severe with psychotic symptoms1 mapping6A60.9Bipolar type I disorder, current episode mixed, without psychotic symptoms1 mapping6A60.FBipolar type I disorder, currently in full remission1 mapping6A62Cyclothymic disorder1 mapping6A6ZBipolar or related disorders, unspecified3 mappings
6A60-6A8Z: Mood disorders
15 codes with ICD-10 mappings
6A70.0Single episode depressive disorder, mild1 mapping6A70.1Single episode depressive disorder, moderate, without psychotic symptoms1 mapping6A70.3Single episode depressive disorder, severe, without psychotic symptoms1 mapping6A70.4Single episode depressive disorder, severe, with psychotic symptoms1 mapping6A70.ZSingle episode depressive disorder, unspecified1 mapping6A71.0Recurrent depressive disorder, current episode mild1 mapping6A71.1Recurrent depressive disorder, current episode moderate, without psychotic symptoms1 mapping6A71.3Recurrent depressive disorder, current episode severe, without psychotic symptoms1 mapping6A71.4Recurrent depressive disorder, current episode severe, with psychotic symptoms1 mapping6A71.7Recurrent depressive disorder, currently in full remission1 mapping6A71.ZRecurrent depressive disorder, unspecified3 mappings6A72Dysthymic disorder1 mapping6A73Mixed depressive and anxiety disorder1 mapping6A7ZDepressive disorders, unspecified2 mappings6A8ZMood disorders, unspecified15 mappings
6B00-6B0Z: Anxiety or fear-related disorders
8 codes with ICD-10 mappings
6B20-6B2Z: Obsessive-compulsive or related disorders
5 codes with ICD-10 mappings
6B40-6B4Z: Disorders specifically associated with stress
5 codes with ICD-10 mappings
6B60-6B6Z: Dissociative disorders
9 codes with ICD-10 mappings
6B60.3Dissociative neurological symptom disorder, with other sensory disturbance1 mapping6B60.4Dissociative neurological symptom disorder, with non-epileptic seizures1 mapping6B60.8ZDissociative neurological symptom disorder, with unspecified movement disturbance1 mapping6B60.ZDissociative neurological symptom disorder, with unspecified symptoms1 mapping6B61.0Dissociative amnesia with dissociative fugue1 mapping6B61.ZDissociative amnesia, unspecified1 mapping6B63Possession trance disorder1 mapping6B66Depersonalization-derealization disorder1 mapping6B6ZDissociative disorders, unspecified6 mappings
6B80-6B8Z: Feeding or eating disorders
4 codes with ICD-10 mappings
6C00-6C0Z: Elimination disorders
2 codes with ICD-10 mappings
6C20-6C2Z: Disorders of bodily distress or bodily experience
1 code with ICD-10 mappings
6C40-6C4Z: Disorders due to substance use
57 codes with ICD-10 mappings
6C40.1ZHarmful pattern of use of alcohol, unspecified1 mapping6C40.2ZAlcohol dependence, unspecified1 mapping6C40.3Alcohol intoxication7 mappings6C40.4ZAlcohol withdrawal, unspecified1 mapping6C40.5Alcohol-induced delirium1 mapping6C40.6ZAlcohol-induced psychotic disorder, unspecified1 mapping6C40.ZDisorders due to use of alcohol, unspecified4 mappings6C41.1ZHarmful pattern of use of cannabis, unspecified1 mapping6C41.2ZCannabis dependence, unspecified1 mapping6C41.3Cannabis intoxication1 mapping6C41.ZDisorders due to use of cannabis, unspecified2 mappings6C43.1ZHarmful pattern of use of opioids, unspecified1 mapping6C43.2ZOpioid dependence, unspecified1 mapping6C43.3Opioid intoxication1 mapping6C43.4Opioid withdrawal1 mapping6C43.5Opioid-induced delirium1 mapping6C43.6Opioid-induced psychotic disorder2 mappings6C43.ZDisorders due to use of opioids, unspecified3 mappings6C44.1ZHarmful pattern of use of sedatives, hypnotics or anxiolytics, unspecified1 mapping6C44.2ZSedative, hypnotic or anxiolytic dependence, unspecified1 mapping6C44.3Sedative, hypnotic or anxiolytic intoxication1 mapping6C44.4ZSedative, hypnotic or anxiolytic withdrawal, unspecified1 mapping6C44.5Sedative, hypnotic or anxiolytic-induced delirium1 mapping6C44.6Sedative, hypnotic or anxiolytic-induced psychotic disorder2 mappings6C44.ZDisorders due to use of sedatives, hypnotics or anxiolytics, unspecified3 mappings6C45.1ZHarmful pattern of use of cocaine, unspecified1 mapping6C45.2ZCocaine dependence, unspecified1 mapping6C45.3Cocaine intoxication1 mapping6C45.4Cocaine withdrawal1 mapping6C45.5Cocaine-induced delirium1 mapping6C45.6ZCocaine-induced psychotic disorder, unspecified2 mappings6C45.ZDisorders due to use of cocaine, unspecified3 mappings6C46.6ZStimulant-induced psychotic disorder including amphetamines, methamphetamine or methcathinone, unspecified2 mappings6C46.ZDisorders due to use of stimulants including amphetamines, methamphetamine or methcathinone, unspecified1 mapping6C47.ZDisorders due to use of synthetic cathinones, unspecified1 mapping6C48.ZDisorders due to use of caffeine, unspecified7 mappings6C49.1ZHarmful pattern of use of hallucinogens, unspecified1 mapping6C49.2ZHallucinogen dependence, unspecified1 mapping6C49.3Hallucinogen intoxication1 mapping6C49.4Hallucinogen-induced delirium2 mappings6C49.5Hallucinogen-induced psychotic disorder2 mappings6C49.ZDisorders due to use of hallucinogens, unspecified3 mappings6C4A.1ZHarmful pattern of use of nicotine, unspecified1 mapping6C4A.2ZNicotine dependence, unspecified1 mapping6C4A.3Nicotine intoxication1 mapping6C4A.4Nicotine withdrawal2 mappings6C4A.ZDisorders due to use of nicotine, unspecified5 mappings6C4B.1ZHarmful pattern of use of volatile inhalants, unspecified1 mapping6C4B.2ZVolatile inhalant dependence, unspecified1 mapping6C4B.3Volatile inhalant intoxication1 mapping6C4B.4Volatile inhalant withdrawal1 mapping6C4B.5Volatile inhalant-induced delirium1 mapping6C4B.6Volatile inhalant-induced psychotic disorder2 mappings6C4B.ZDisorders due to use of volatile inhalants, unspecified3 mappings6C4E.ZDisorders due to use of other specified psychoactive substances, including medications, unspecified1 mapping6C4H.1ZHarmful pattern of use of non-psychoactive substances, unspecified1 mapping6C4ZDisorders due to substance use, unspecified14 mappings
6C50-6C5Z: Disorders due to addictive behaviours
1 code with ICD-10 mappings
6C70-6C7Z: Impulse control disorders
4 codes with ICD-10 mappings
6C90-6C9Z: Disruptive behaviour or dissocial disorders
3 codes with ICD-10 mappings
6D10-6D11: Personality disorders and related traits
2 codes with ICD-10 mappings
6D30-6D3Z: Paraphilic disorders
5 codes with ICD-10 mappings
6D50-6D5Z: Factitious disorders
2 codes with ICD-10 mappings
6D70-6E0Z: Neurocognitive disorders
18 codes with ICD-10 mappings
6D70.ZDelirium, unspecified or unknown cause5 mappings6D71Mild neurocognitive disorder2 mappings6D72.0Amnestic disorder due to diseases classified elsewhere1 mapping6D72.10Amnestic disorder due to use of alcohol1 mapping6D72.11Amnestic disorder due to use of sedatives, hypnotics or anxiolytics1 mapping6D72.13Amnestic disorder due to use of volatile inhalants8 mappings6D72.YAmnestic disorder, other specified cause1 mapping6D80.0Dementia due to Alzheimer disease with early onset1 mapping6D80.1Dementia due to Alzheimer disease with late onset1 mapping6D80.ZDementia due to Alzheimer disease, onset unknown or unspecified6 mappings6D81Dementia due to cerebrovascular disease7 mappings6D83Frontotemporal dementia1 mapping6D85.0Dementia due to Parkinson disease1 mapping6D85.1Dementia due to Huntington disease1 mapping6D85.3Dementia due to human immunodeficiency virus1 mapping6D85.5Dementia due to prion disease1 mapping6D8ZDementia, unknown or unspecified cause3 mappings6E0ZNeurocognitive disorders, unspecified1 mapping
6E20-6E2Z: Mental or behavioural disorders associated with pregnancy, childbirth or the puerperium
1 code with ICD-10 mappings
6E60-6E6Z: Secondary mental or behavioural syndromes associated with disorders or diseases classified elsewhere
7 codes with ICD-10 mappings
6E61.0Secondary psychotic syndrome, with hallucinations1 mapping6E61.1Secondary psychotic syndrome, with delusions1 mapping6E62.3Secondary mood syndrome, with unspecified symptoms1 mapping6E63Secondary anxiety syndrome1 mapping6E65Secondary dissociative syndrome1 mapping6E68Secondary personality change3 mappings6E6ZSecondary mental or behavioural syndrome, unspecified7 mappings