LB99

ICD-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 limb
  • LB99.1 – Humeral agenesis or hypoplasia
  • LB99.2 – Radial hemimelia
  • LB99.3 – Ulnar hemimelia
  • LB99.4 – Congenital absence of upper arm or forearm with hand present
  • LB99.5 – Congenital absence of both forearm and hand
  • LB99.6 – Acheiria
  • LB99.7 – Adactyly of hands
  • LB99.8 – Split hand
  • LB99.Y – Other specified reduction defects of upper limb
  • LB99.Z – Reduction defects of upper limb, unspecified

Sibling codes

  • LB70 – Structural developmental anomalies of cranium
  • LB71 – Structural developmental anomalies of facial bones
  • LB72 – Structural developmental anomalies of shoulder girdle
  • LB73 – Structural developmental anomalies of spine or bony thorax
  • LB74 – Structural developmental anomalies of pelvic girdle
  • LB75 – Brachydactyly
  • LB76 – Triphalangeal thumb
  • LB77 – Hyperphalangy
  • LB78 – Polydactyly
  • LB79 – Syndactyly
  • LB90 – Joint formation defects
  • LB91 – Congenital shoulder dislocation
  • LB92 – Congenital elbow dislocation
  • LB93 – Congenital knee dislocation
  • LB94 – Congenital patella dislocation
  • LB95 – Patella aplasia or hypoplasia
  • LB96 – Congenital bowing of long bones
  • LB97 – Limb overgrowth
  • LB98 – Congenital deformities of feet
  • LB9A – Reduction defects of lower limb
  • LB9B – Reduction defects of upper and lower limbs
  • LB9Y – Other specified structural developmental anomalies of the skeleton
  • LB9Z – 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