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C11 Malignant neoplasm of nasopharynx

ICD-10-CM category C11 sits in Chapter 2 (Neoplasms, C00-D49). It contains 6 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in C11

CodeDescription
C11.0Malignant neoplasm of superior wall of nasopharynx
C11.1Malignant neoplasm of posterior wall of nasopharynx
C11.2Malignant neoplasm of lateral wall of nasopharynx
C11.3Malignant neoplasm of anterior wall of nasopharynx
C11.8Malignant neoplasm of overlapping sites of nasopharynx
C11.9Malignant neoplasm of nasopharynx, unspecified

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