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ICD-10-CM category

Q91: Trisomy 18 and Trisomy 13

8 subcodes · 8 billable · Look up any code with the ICD-10 search

Codes under Q91 (Trisomy 18 and Trisomy 13). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
Q91.0Trisomy 18, nonmosaicism (meiotic nondisjunction)✓
Q91.1Trisomy 18, mosaicism (mitotic nondisjunction)✓
Q91.2Trisomy 18, translocation✓
Q91.3Trisomy 18, unspecified✓
Q91.4Trisomy 13, nonmosaicism (meiotic nondisjunction)✓
Q91.5Trisomy 13, mosaicism (mitotic nondisjunction)✓
Q91.6Trisomy 13, translocation✓
Q91.7Trisomy 13, unspecified✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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