KB20

ICD-11 MMS 2026-01

Intrauterine hypoxia

Description

Intrauterine hypoxia occurs when the fetus is deprived of an adequate supply of oxygen. This may occur with prolapse or occlusion of the umbilical cord, placental infarction and maternal smoking. This can lead to damage of the central nervous system and neonatal encephalopathy, which increases the risk of mortality.

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.

Inclusions

  • intrauterine distress

Excludes

  • KA82 – Intracranial nontraumatic haemorrhage of fetus or newborn
  • KB04 – Hypoxic ischaemic encephalopathy of newborn
  • KB22 – Metabolic acidaemia in newborn
  • KB63.0 – Late metabolic acidosis 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

Child codes

  • KB20.0 – Intrauterine hypoxia first noted before onset of labour
  • KB20.1 – Intrauterine hypoxia first noted during labour or delivery
  • KB20.Z – Intrauterine hypoxia, unspecified

Sibling codes

  • KB21 – Birth asphyxia
  • KB22 – Metabolic acidaemia in newborn
  • KB23 – Respiratory distress of newborn
  • KB24 – Congenital pneumonia
  • KB25 – Neonatal tracheitis
  • KB26 – Neonatal aspiration syndromes
  • KB27 – Pulmonary air leak or related conditions originating in the perinatal period
  • KB28 – Pulmonary haemorrhage originating in the perinatal period
  • KB29 – Chronic respiratory disease originating in the perinatal period
  • KB2A – Apnoea of newborn
  • KB2B – Primary atelectasis of newborn
  • KB2C – Cyanotic attacks of newborn
  • KB2D – Respiratory failure of newborn
  • KB2E – Respiratory arrest of newborn
  • KB2F – Congenital lung or lobar atelectasis
  • KB2G – Tracheal haemorrhage of newborn due to airway trauma
  • KB2H – Acquired vocal cord paralysis in newborn
  • KB2J – Airway obstruction in the neonate due to airway abnormality
  • KB2K – Pulmonary cysts in newborn
  • KB2Y – Other specified respiratory disorders specific to the perinatal or neonatal period
  • KB2Z – Respiratory disorders specific to the perinatal or neonatal period, unspecified

Foundation entity

Intrauterine hypoxia – http://id.who.int/icd/entity/1474007427

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