19Certain conditions originating in the perinatal period
Disorders of newborn related to length of gestation or fetal growth
KA20Disorders of newborn related to slow fetal growth or fetal malnutrition
KA20.0Small for gestational age
KA20.01
category
Small for gestational age, asymmetrical
Definition This growth restriction leads to a disparity in length and head circumference when compared to birth weight. This condition typically occurs in the third trimester.
Coding note When both birth weight and gestational age are available, priority of assignment should be given to birth weight.
Also indexed as
Small for gestational age, asymmetrical
Nearby in Small for gestational age
International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).
Release 2026-01.
View this entity in the official WHO ICD-11 browser .
This page reproduces WHO classification content for reference. It is not
medical advice and must not be used to diagnose or treat. For coding
decisions, consult the official release and your national coding guidelines.
About · Data & methodology ·
Privacy · Contact