KA21.2ICD-11 MMS 2026-01
Low birth weight of newborn
Description
A paediatric condition in which the infant is born weighing between 1500 and 2499 g.
Coding note from above levels
When both birth weight and gestational age are available, priority of assignment should be given to birth weight.
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
KA20– Disorders of newborn related to slow fetal growth or fetal malnutrition01– Certain infectious or parasitic diseases - acquired after birth02– Neoplasms
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05– Endocrine, nutritional or metabolic diseases08– Certain congenital diseases of the nervous system20– Congenital malformations, deformations and chromosomal abnormalities22– Injury, poisoning or certain other consequences of external causes3A10– Hereditary haemolytic anaemia4A01.03– Transient hypogammaglobulinaemia of infancy9B71.3– Retinopathy of prematurityBC43– congenital cardiomyopathyDA93.0– Paralytic ileusEA50.Z– Pemphigus neonatorumEH40.00– 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
Sibling codes
Foundation entity
Low birth weight of newborn – http://id.who.int/icd/entity/2041060050
Part of: KA21: Disorders of newborn related to short gestation or low birth weight, not elsewhere classified › 19: Certain conditions originating in the perinatal period