KB04

ICD-11 MMS 2026-01

Hypoxic ischaemic encephalopathy of newborn

Description

Hypoxic ischaemic encephalopathy (HIE) is when a newborn’s brain fails to receive a sufficient amount of oxygen or blood before and during birth that may lead to brain damage or death.

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

  • Hypoxic ischaemic encephalopathy of newborn
  • HIE - [hypoxic ischaemic encephalopathy] of newborn
  • Hypoxic ischaemic encephalopathy of newborn, mild
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  • HIE - [Hypoxic-ischaemic encephalopathy], mild
  • Stage 1 hypoxic ischaemic encephalopathy [HIE] of newborn
  • Hypoxic ischaemic encephalopathy of newborn, moderate
  • HIE - [Hypoxic-ischaemic encephalopathy], moderate
  • Stage 2 hypoxic ischaemic encephalopathy [HIE] of newborn
  • hypoxic ischaemic encephalopathy stage II
  • Hypoxic ischaemic encephalopathy of newborn, severe
  • HIE - [Hypoxic-ischaemic encephalopathy], severe
  • Stage 3 hypoxic ischaemic encephalopathy [HIE] of newborn

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

  • KB00 – Neonatal cerebral ischaemia
  • KB01 – Periventricular cysts of newborn
  • KB02 – Neonatal cerebral leukomalacia
  • KB03 – Neonatal encephalopathy, not elsewhere classified
  • KB05 – Neonatal hydrocephalus
  • KB06 – Neonatal seizures
  • KB07 – Compression of brain in neonate
  • KB08 – Disorders of muscle tone of newborn
  • KB0Y – Other specified neurological disorders specific to the perinatal or neonatal period
  • KB0Z – Neurological disorders specific to the perinatal or neonatal period, unspecified

Foundation entity

Hypoxic ischaemic encephalopathy of newborn – http://id.who.int/icd/entity/1281282034

Allowed postcoordination axes

Part of: 19: Certain conditions originating in the perinatal period