LB15.0

ICD-11 MMS 2026-01

Meckel diverticulum

Description

A congenital abnormality characterised by the outpouching or sac formation in the ileum. It is a remnant of the embryonic yolk sac in which the vitelline duc failed to close. During early gestation, the omphalomesenteric or vitelline duct connects the fetal yolk sac to the primitive gut. By 7-8 weeks of gestation, this duct is normally completely obliterated. A Meckel diverticulum results when this structure fails to resorb completely.

Index terms

  • Meckel diverticulum
  • Meckel diverticulum with complication
  • Dilatation of Meckel diverticulum
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  • Displaced Meckel diverticulum
  • Hypertrophic Meckel diverticulum
  • Meckel diverticulitis
  • Torsion of Meckel diverticulum
  • Ulcer of Meckel diverticulum
  • Meckel diverticulum without complication
  • Persistent Meckel diverticulum

Exclusions from above levels

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

Sibling codes

  • LB15.1 – Atresia of small intestine
  • LB15.2 – Congenital short bowel
  • LB15.3 – Congenital diverticulitis of small intestine
  • LB15.4 – Congenital diverticulosis of small intestine
  • LB15.5 – Congenital diverticulum of small intestine
  • LB15.Y – Other specified structural developmental anomalies of small intestine
  • LB15.Z – Structural developmental anomalies of small intestine, unspecified

Foundation entity

Meckel diverticulum – http://id.who.int/icd/entity/216192536

Part of: LB15: Structural developmental anomalies of small intestine › 20: Developmental anomalies