Q91.0 is the ICD-10 code for Trisomy 18, meiotic nondisjunction. It is a four-character subcategory of Q91 (Edwards syndrome and Patau syndrome), the most specific level in the WHO edition. It belongs to the block Q90–Q99 (Chromosomal abnormalities, not elsewhere classified) in Chapter XVII, Congenital malformations, deformations and chromosomal abnormalities.
- Code type
- Subcategory (4 characters)
- Chapter
- XVII · Q00–Q99
- Classification
- WHO ICD-10, 2019 version
Q91.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
Q91.0Trisomi 18, meiotisk nondisjunksjon
DQ910Trisomi 18, meiotisk nondisjunktion
- DQ910ATrisomi 17-18, meiotisk nondisjunktion
Q91.0Trisomia 18, meioottinen nondisjunktio
Q91.0Trisomie 18, meiotische Non-disjunction
Q91.0Trisomie 18, non-disjonction méïotique
Q91.0trisomie 18, meiotische non-disjunctie
Q91.0Trisomy 18, nonmosaicism (meiotic nondisjunction)
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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