ICD-10-CM category
C12: Malignant neoplasm of pyriform sinus
C12 is “Malignant neoplasm of pyriform sinus”. It has no subcodes in this category.
Frequently asked questions
What is ICD-10-CM code C12?
C12 is the ICD-10-CM code for Malignant neoplasm of pyriform sinus.
Is C12 billable?
Yes — C12 is a valid, billable ICD-10-CM code (it has no further subdivisions).
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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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