LB42.4

ICD-11 MMS 2026-01

Imperforate hymen

Description

A condition in which the hymen, the membrane that surrounds or partially covers the external vaginal opening, is harder than normal or is complete and sealed without any opening into the vaginal vault.

Index terms

  • Imperforate hymen
  • congenital occlusion of hymen
  • hymen closure
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  • hymen fusion
  • hymen imperforatus
  • hymenal atresia

Exclusions from above levels

  • LD2A – Disorders of sex development leading to sexual ambiguity
  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LB42.0 – Absence of vagina
  • LB42.1 – Septate vagina
  • LB42.2 – Congenital rectovaginal fistula
  • LB42.3 – Tight hymenal ring
  • LB42.5 – Stricture or atresia of vagina
  • LB42.Y – Other specified structural developmental anomalies of vagina
  • LB42.Z – Structural developmental anomalies of vagina, unspecified

Foundation entity

Imperforate hymen – http://id.who.int/icd/entity/1957522777

Part of: LB42: Structural developmental anomalies of vagina › 20: Developmental anomalies