20Developmental anomalies
Chromosomal anomalies, excluding gene mutations
LD41Duplications of the autosomes
LD41.HDuplications of chromosome 18
LD41.H0
category
Duplications of the long arm of chromosome 18
Also indexed as
18q21qter duplication Distal 18q duplication syndrome Distal duplications of the long arm of chromosome 18 Duplications of the long arm of chromosome 18 Proximal duplications of the long arm of chromosome 18
Nearby in Duplications of chromosome 18
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.
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