ICD-11 MMS

20 Developmental anomalies

Structural developmental anomalies primarily affecting one body system  (LA00-LD0Z)

Structural developmental anomalies of the skeleton  (LB70-LB9Z)

LB90 Joint formation defects

LB90.2 Humero-ulnar synostosis

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


A condition caused by failure of the arm bones to correctly develop during the antenatal period. This condition is characterised by direct fusion of the humerus and radial bones of the arm, and consequent inability to straighten the elbow joint. Confirmation is through observation of humero-ulnar fusion by imaging.

postcoordination

Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.

Laterality  - only one may be selected

synonyms

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