01 - Neurodevelopmental disorders

Neurodevelopmental disorders

35 List of categories List of categories Neurodevelopmental disorders ICD-11 Mental, behavioural and neurodevelopmental disorders Note: the following list contains all the available codes in the ICD-11 chapter on mental, behavioural and neurodevelopmental disorders. As described in the section of this manual on using the CDDR for ICD-11 mental, behavioural and neurodevelopmental disorders (p. 21), ICD-11 uses secondary parenting to cross-list categories from other parts of the classification that share important primary clinical features or other linkages with the disorders contained in a particular grouping. This most commonly involves substanceinduced mental disorders and secondary mental or behavioural syndromes associated with disorders and diseases classified elsewhere, which are also classified in Chapter 6. In several cases, however, this involves categories from other chapters of ICD-11 (e.g. the inclusion of primary tics and tic disorders from Chapter 8 on disorders of the nervous system with neurodevelopmental disorders). These secondary-parented categories also appear in the list below with the groupings to which they are cross-listed, in grey font. In ICD-11, postcoordination is a mechanism for allowing additional codes to be linked to the initial diagnostic code to identify additional clinically significant features of the clinical presentation. See the section on using the CDDR for ICD-11 mental, behavioural and neurodevelopmental disorders (p. 21). Postcoordination options for each disorder grouping appear also appear in the list below, in boxes. In some cases, ellipses (…) are used to improve the readability of the list by avoiding repetition of the disorder name. When used, ellipses signify the category name that appears in the level immediately above. For example, below 6A01.2 Developmental language disorder, the title for 6A01.20 appears as “… with impairment of receptive and expressive language” rather using the full name of the category, “6A01.20 Developmental language disorder with impairment of receptive and expressive language”. Disorders of intellectual development Specify severity: 6A00.0 Disorder of intellectual development, mild 6A00.1 Disorder of intellectual development, moderate 6A00.2 Disorder of intellectual development, severe 6A00.3 Disorder of intellectual development, profound 6A00.4 Disorder of intellectual development, provisional 6A00.Z Disorder of intellectual development, unspecified 6A00

Clinical Descriptions and Diagnostic Requirements for ICD-11 Mental, Behavioural or Neurodevelopmental Disorders For all the above Autism Spectrum Disorder (6A02.x) categories, specify whether: 6A02.x0 without loss of previously acquired skills 6A02.x1 with loss of previously acquired skills Developmental speech and language disorders 6A01.0 Developmental speech sound disorder 6A01.1 Developmental speech fluency disorder 6A01.2 Developmental language disorder

Specify areas of language impairment: 6A01.20 … with impairment of receptive and expressive language 6A01.21 … with impairment of mainly expressive language 6A01.22 … with impairment of mainly pragmatic language 6A01.23 … with other specified language impairment 6A01.Y Other specified developmental speech or language disorder 6A01.Z Developmental speech or language disorder, unspecified Autism spectrum disorder Specify whether there is a co-occurring disorder or intellectual development and level of functional language impairment: 6A02.0 … without disorder of intellectual development and with mild or no impairment of functional language 6A02.1 … with disorder of intellectual development and with mild or no impairment of functional language 6A02.2 … without disorder of intellectual development and with impaired functional language 6A02.3 … with disorder of intellectual development and with impaired functional language 6A02.5 … with disorder of intellectual development and with complete, or almost complete, absence of functional language 6A02.Y Other specified autism spectrum disorder 6A02.Z Autism spectrum disorder, unspecified 6A02 6A01 Developmental learning disorder Specify area(s) of learning impairment: 6A03.0 … with impairment in reading 6A03.1 … with impairment in written expression 6A03.2 … with impairment in mathematics 6A03.3 … with other specified impairment of learning 6A03.Z … unspecified Developmental motor coordination disorder 6A03 6A04

37 List of categories Attention deficit hyperactivity disorder Specify characteristics of clinical presentation: 6A05.0 … with predominantly inattentive presentation 6A05.1 … with predominantly hyperactive-impulsive presentation 6A05.2 … with combined presentation 6A05.Y … with other specified presentation 6A05.Z … presentation unspecified Stereotyped movement disorder Specify presence of self-injurious behaviours: 6A06.0 … without self-injury 6A06.1 … with self-injury 6A06.Z … unspecified Other specified neurodevelopmental disorder Neurodevelopmental disorder, unspecified Secondary-parented categories From Chapter 8 on diseases of the nervous system: Primary tics and tic disorders 8A05.00 Tourette syndrome 8A05.01 Chronic motor tic disorder 8A05.02 Chronic phonic tic disorder From secondary mental or behavioural syndromes associated with disorders and diseases classified elsewhere: Secondary neurodevelopmental syndrome 6E60.0 Secondary speech or language syndrome 6E60.Y Other specified secondary neurodevelopmental syndrome 6E60.Z Secondary neurodevelopmental syndrome, unspecified 6E60 6A05 6A06 6A0Y 6A0Z 8A05.0