Q99.1
✓ Billable46, XX true hermaphrodite
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Also Known As
46, XX with streak gonads46, XY with streak gonadsPure gonadal dysgenesis
✅ No additional coding notes for Q99.1
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CodeQ99.1
BillableYes
ParentQ99
CategoryCongenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Excludes10 rule(s)
Excludes20 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)