KB63.0

ICD-11 MMS 2026-01

Late metabolic acidosis of newborn

Description

Mild to moderate metabolic acidosis occurring between 1 to 3 weeks of age in otherwise healthy premature infants fed cow's milk and accompanied by poor growth. This is thought to be due to excessive protein content of the milk.

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

  • 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

Sibling codes

  • KB63.1 – Dehydration of newborn
  • KB63.2 – Disturbances of sodium balance of newborn
  • KB63.3 – Disturbances of potassium balance of newborn
  • KB63.4 – Transitory tyrosinaemia of newborn
  • KB63.5 – Metabolic bone disease of prematurity

Foundation entity

Late metabolic acidosis of newborn – http://id.who.int/icd/entity/1670358239

Part of: KB63: Certain specified transitory neonatal electrolyte or metabolic disturbances › 19: Certain conditions originating in the perinatal period