LD26.5

ICD-11 MMS 2026-01

Constriction rings

Description

A condition caused by entangling of fibrous bands of the amniotic sac around a developing fetus. This condition may present with circular indentation around a digit or limb, swelling, restriction of the lymphatic or venous flow, limb development defects, or in utero amputation.

Index terms

  • Constriction rings
  • Amniotic band syndrome
  • Congenital amputation
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  • Constriction ring syndrome

Exclusions from above levels

  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LD26.0 – Combined reduction defects of upper and lower limbs
  • LD26.1 – Complex brachydactylies
  • LD26.2 – Syndromes with limb duplication, polydactyly, syndactyly or triphalangism
  • LD26.3 – Syndromes with synostoses of limbs
  • LD26.4 – Arthrogryposis syndromes
  • LD26.6 – Congenital vascular bone syndromes
  • LD26.Y – Other specified syndromes with limb anomalies as a major feature
  • LD26.Z – Syndromes with limb anomalies as a major feature, unspecified

Foundation entity

Constriction rings – http://id.who.int/icd/entity/1033549095

Part of: LD26: Syndromes with limb anomalies as a major feature › 20: Developmental anomalies