KB27.2

ICD-11 MMS 2026-01

Pneumomediastinum originating in the perinatal period

Description

Presence of air in the mediastinum usually from tracking of free air from ruptured alveolar ducts along the perivascular sheaths of pulmonary blood vessels, or rupture of subpleural bleb

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

  • Pneumomediastinum originating in the perinatal period
  • congenital pneumomediastinum
  • mediastinal emphysema of fetus or newborn
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  • perinatal mediastinal emphysema
  • perinatal pneumomediastinum

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

  • KB27.0 – Interstitial emphysema originating in the perinatal period
  • KB27.1 – Pneumothorax originating in the perinatal period
  • KB27.3 – Pneumopericardium originating in the perinatal period
  • KB27.4 – Pneumoperitoneum, originating in the perinatal period, due to primary pulmonary air leak syndromes
  • KB27.Y – Other specified pulmonary air leak or related conditions originating in the perinatal period
  • KB27.Z – Pulmonary air leak or related conditions originating in the perinatal period, unspecified

Foundation entity

Pneumomediastinum originating in the perinatal period – http://id.who.int/icd/entity/1055088320

Part of: KB27: Pulmonary air leak or related conditions originating in the perinatal period › 19: Certain conditions originating in the perinatal period