KA8A

ICD-11 MMS 2026-01

Polycythaemia neonatorum

Description

Polycythaemia of the neonate represents an excessive quality of circulating red blood cells due to excessive marrow production and haematocrits that exceed ~60%.

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.

Exclusions from above levels

  • 3A10 – Hereditary haemolytic anaemia
  • 5C58.00 – Crigler-Najjar syndrome
  • 5C58.01 – Gilbert syndrome
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  • 5C58.02 – Dubin-Johnson syndrome
  • LB20.22 – Congenital stenosis or stricture of bile ducts
  • 01 – Certain infectious or parasitic diseases - acquired after birth
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
  • 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
  • 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

  • KA8A.0 – Polycythaemia neonatorum due to placental insufficiency or fetal intrauterine growth restriction
  • KA8A.1 – Polycythaemia neonatorum due to twin to twin transfusion
  • KA8A.2 – Polycythaemia neonatorum due to inherited disorder of erythropoietin production
  • KA8A.3 – Polycythaemia neonatorum following umbilical cord transfusion or stripping at delivery
  • KA8A.4 – Polycythaemia neonatorum following blood transfusion
  • KA8A.Y – Other specified polycythaemia neonatorum
  • KA8A.Z – Polycythaemia neonatorum, unspecified

Sibling codes

  • KA80 – Fetal blood loss
  • KA81 – Umbilical haemorrhage of newborn
  • KA82 – Intracranial nontraumatic haemorrhage of fetus or newborn
  • KA83 – Certain specified neonatal haemorrhages
  • KA84 – Haemolytic disease of fetus or newborn
  • KA85 – Hydrops fetalis due to haemolytic disease
  • KA86 – Neonatal kernicterus
  • KA87 – Neonatal hyperbilirubinaemia
  • KA88 – Disseminated intravascular coagulation of fetus or newborn
  • KA89 – Transient neonatal thrombocytopaenia
  • KA8B – Anaemia of prematurity
  • KA8C – Congenital hypoplastic anaemia
  • KA8D – Transient neonatal neutropaenia
  • KA8E – Alloimmune neonatal neutropaenia
  • KA8F – Neonatal vitamin K deficiency
  • KA8Y – Other specified haemorrhagic or haematological disorders of fetus or newborn
  • KA8Z – Haemorrhagic or haematological disorders of fetus or newborn, unspecified

Foundation entity

Polycythaemia neonatorum – http://id.who.int/icd/entity/819483525

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