LB99ICD-11 MMS 2026-01
Reduction defects of upper limb
Description
Any condition caused by the failure of an upper limb to correctly develop during the antenatal period. These conditions are characterised by reduction in size or absence of the limb.
Exclusions from above levels
- http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism
Child codes
LB99.0– Amelia of upper limbLB99.1– Humeral agenesis or hypoplasiaLB99.2– Radial hemimeliaLB99.3– Ulnar hemimeliaLB99.4– Congenital absence of upper arm or forearm with hand presentLB99.5– Congenital absence of both forearm and handLB99.6– AcheiriaLB99.7– Adactyly of handsLB99.8– Split handLB99.Y– Other specified reduction defects of upper limbLB99.Z– Reduction defects of upper limb, unspecified
Sibling codes
LB70– Structural developmental anomalies of craniumLB71– Structural developmental anomalies of facial bonesLB72– Structural developmental anomalies of shoulder girdleLB73– Structural developmental anomalies of spine or bony thoraxLB74– Structural developmental anomalies of pelvic girdleLB75– BrachydactylyLB76– Triphalangeal thumbLB77– HyperphalangyLB78– PolydactylyLB79– SyndactylyLB90– Joint formation defectsLB91– Congenital shoulder dislocationLB92– Congenital elbow dislocationLB93– Congenital knee dislocationLB94– Congenital patella dislocationLB95– Patella aplasia or hypoplasiaLB96– Congenital bowing of long bonesLB97– Limb overgrowthLB98– Congenital deformities of feetLB9A– Reduction defects of lower limbLB9B– Reduction defects of upper and lower limbsLB9Y– Other specified structural developmental anomalies of the skeletonLB9Z– Structural developmental anomalies of the skeleton, unspecified
Foundation entity
Reduction defects of upper limb – http://id.who.int/icd/entity/37094742
Allowed postcoordination axes
Part of: 20: Developmental anomalies