Q99.2 is the ICD-10 code for Fragile X chromosome. It is a four-character subcategory of Q99 (Other chromosome abnormalities, not elsewhere classified), 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
What Q99.2 includes
Conditions and terms that are coded here.
- Fragile X syndrome
Q99.2 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
Q99.2Skör X-kromosom
Q99.2Fragilt X-kromosom
DQ992Fragilt X-kromosom
Q99.2Frax-oireyhtymä (särö-X-oireyhtymä, Fragile-X-oireyhtymä)
Q99.2Fragiles X-Chromosom
Q99.2Chromosome X fragile
Q99.2fragiele-X-chromosoom
Q99.2Fragile X chromosome
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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