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ICD-10-CM category

C09: Malignant neoplasm of tonsil

4 subcodes · 4 billable · Look up any code with the ICD-10 search

Codes under C09 (Malignant neoplasm of tonsil). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
C09.0Malignant neoplasm of tonsillar fossa✓
C09.1Malignant neoplasm of tonsillar pillar (anterior) (posterior)✓
C09.8Malignant neoplasm of overlapping sites of tonsil✓
C09.9Malignant neoplasm of tonsil, unspecified✓

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

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