6E60ICD-11 MMS 2026-01
Secondary neurodevelopmental syndrome
Description
A syndrome that involves significant neurodevelopmental features that do not fulfill the diagnostic requirements of any of the specific neurodevelopmental disorders that is judged to be a direct pathophysiological consequence of a health condition not classified under mental and behavioural disorders (e.g., autistic-like features in Rett syndrome; aggression and self-mutilation in Lesch-Nyhan syndrome, abnormalities in language development in Williams syndrome), based on evidence from the history, physical examination, or laboratory findings. This category should be used in addition to the diagnosis for the presumed underlying disorder or disease when the neurodevelopmental problems are sufficiently severe to warrant specific clinical attention.
Excludes
Exclusions from above levels
Child codes
Sibling codes
6E61– Secondary psychotic syndrome6E62– Secondary mood syndrome6E63– Secondary anxiety syndrome6E64– Secondary obsessive-compulsive or related syndrome6E65– Secondary dissociative syndrome6E66– Secondary impulse control syndrome6E67– Secondary neurocognitive syndrome6E68– Secondary personality change6E69– Secondary catatonia syndrome6E6Y– Other specified secondary mental or behavioural syndrome6E6Z– Secondary mental or behavioural syndrome, unspecified
Foundation entity
Secondary neurodevelopmental syndrome – http://id.who.int/icd/entity/255980141
Allowed postcoordination axes
Part of: 06: Mental, behavioural or neurodevelopmental disorders