ICD-11 classes
20 Developmental anomalies
Chromosomal anomalies, excluding gene mutations

ICD-11 Chromosomal anomalies, excluding gene mutations

Any disease caused by alteration of the number or structure of chromosomes.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis contains 11 clarifying diagnoses:

1. LD40 — Complete trisomies of the autosomes
   It contains 5 clarifying diagnoses.
2. LD41 — Duplications of the autosomes
   It contains 27 clarifying diagnoses.
3. LD42 — Polyploidies
   It contains 4 clarifying diagnoses.
4. LD43 — Complete monosomies of the autosomes
   It contains 4 clarifying diagnoses.
5. LD44 — Deletions of the autosomes
   It contains 25 clarifying diagnoses.
6. LD45 — Uniparental disomies
   It contains 4 clarifying diagnoses.
7. LD46 — Imprinting errors
   It contains 4 clarifying diagnoses.
8. LD47 — Balanced rearrangements or structural rearrangements
   It contains 7 clarifying diagnoses.
9. Sex chromosome anomalies
   It contains 9 clarifying diagnoses.
10. LD7Y — Other specified chromosomal anomalies, excluding gene mutations
11. LD7Z — Chromosomal anomalies, excluding gene mutations, unspecified