KB87.2

ICD-11 MMS 2026-01

Meconium ileus without perforation

Description

The meconium sometimes becomes thickened and congested in the terminal ileum, a condition known as meconium ileus. Meconium ileus is among the most common causes of intestinal obstruction in the newborn, accounting for 9-33% of neonatal intestinal obstructions. A symptom of both Hirschsprung’s disease and cystic fibrosis is the failure to pass meconium. Some babies have a blockage in their colon that may look like meconium ileus (a meconium plug), and they have small left colon syndrome. This means the last part of their colon is smaller than normal.

Coding note from above levels

Conditions arising in the perinatal period, even though death or morbidity occurs later, should, as far as possible, be coded to chapter 19, which takes precedence over chapters containing codes for diseases by their anatomical site. For children less than 28 days old, assume that a reported condition developed in the perinatal period, unless the duration is stated and the onset was after the first completed week of life.

Index terms

  • Meconium ileus without perforation
  • meconium ileus NOS

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases - acquired after birth
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 08 – Certain congenital diseases of the nervous system
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes
  • 3A10 – Hereditary haemolytic anaemia
  • 4A01.03 – Transient hypogammaglobulinaemia of infancy
  • 9B71.3 – Retinopathy of prematurity
  • BC43 – congenital cardiomyopathy
  • DA93.0 – Paralytic ileus
  • EA50.Z – Pemphigus neonatorum
  • EH40.00 – Cradle cap
  • http://id.who.int/icd/entity/588616678 – Gastroenteritis or colitis of infectious origin
  • http://id.who.int/icd/entity/609214049 – Congenital gonococcal infection

Sibling codes

  • KB87.0 – Intestinal obstruction due to inspissated milk
  • KB87.1 – Meconium plug without ileus
  • KB87.3 – Transitory ileus of newborn
  • KB87.4 – Meconium ileus with perforation
  • KB87.Y – Other specified intestinal obstruction of newborn
  • KB87.Z – Intestinal obstruction of newborn, unspecified

Foundation entity

Meconium ileus without perforation – http://id.who.int/icd/entity/1191558345

Part of: KB87: Intestinal obstruction of newborn › 19: Certain conditions originating in the perinatal period