MB4B

ICD-11 MMS 2026-01

Symbolic dysfunctions

Excludes

6A03 – Developmental learning disorder

Exclusions from above levels

19 – Certain conditions originating in the perinatal period
JA66 – Clinical findings on antenatal screening of mother

Child codes

MB4B.0 – Dyslexia or alexia
MB4B.1 – Agnosia
MB4B.2 – Acalculia
MB4B.3 – Agraphia
MB4B.4 – Anomia
MB4B.5 – Dyscalculia
MB4B.Y – Other specified symbolic dysfunctions
MB4B.Z – Symbolic dysfunctions, unspecified

Foundation children elsewhere

MB23.9 – Echolalia

Sibling codes

MB40 – Sensation disturbance
MB41 – Disturbances of smell or taste
MB42 – Phonophobia
MB43 – Dyssomnia
MB44 – Abnormalities of gait or mobility
MB45 – Lack of coordination
MB46 – Abnormal involuntary movements
MB47 – Abnormality of tonus or reflex
MB48 – Dizziness or giddiness
MB49 – Aura
MB4A – Apraxia
MB4C – Gerstmann syndrome
MB4D – Headache, not elsewhere classified
MB60 – Sleeptalking
MB6Y – Other specified symptoms or signs involving the nervous system

Foundation entity

Symbolic dysfunctions – http://id.who.int/icd/entity/1875757565

Part of: 21: Symptoms, signs or clinical findings, not elsewhere classified