ICD-11 MMS

20 Developmental anomalies

Multiple developmental anomalies or syndromes  (LD20-LD2Z)

LD24 Syndromes with skeletal anomalies as a major feature

LD24.G Syndromic craniosynostoses

LD24.G2 Apert syndrome

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01


Apert syndrome is a syndromic craniosynostosis associated with mutations in the FGFR2 gene and characterised by premature closure of coronal suture and a later onset of pansynostosis. Pathognomonic is an osseous and membranous syndactyly of at least Digitus II-IV (fingers and toes). High incidence of midface hypoplasia with orbital and facial stenosis, cleft palate, vertebral fusion. Mental deficits in 30%.

synonyms

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