KA22.2

ICD-11 MMS 2026-01

Post-term newborn

Description

A condition of the newborn characterised by a gestational period that reached or exceeded 42 completed weeks (294 days or more) of gestation.

Coding note

When both birth weight and gestational age are available, priority of assignment should be given to birth weight.

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

  • Post-term newborn
  • Postmaturity NOS
  • hypermaturity of newborn
Show allHide
  • post-term infant
  • post-term newborn, not heavy for gestational age
  • postdate newborn
  • Ballantyne-Runge syndrome

Excludes

  • KA22.3 – Postmaturity syndrome

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases - acquired after birth
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
Show allHide
  • 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

  • KA22.0 – Exceptionally large newborn
  • KA22.1 – Large newborn for gestational age
  • KA22.3 – Postmaturity syndrome

Foundation entity

Post-term newborn – http://id.who.int/icd/entity/1294771105

Part of: KA22: Disorders of newborn related to long gestation or high birth weight › 19: Certain conditions originating in the perinatal period