C11

Classification

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Coding Guidance

C11 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail.

Includes

From C00-D49

Use Additional Code

More Specific Codes

C11.0

Malignant neoplasm of superior wall of nasopharynx

C11.1

Malignant neoplasm of posterior wall of nasopharynx

C11.2

Malignant neoplasm of lateral wall of nasopharynx

C11.3

Malignant neoplasm of anterior wall of nasopharynx

C11.8

Malignant neoplasm of overlapping sites of nasopharynx

C11.9

Malignant neoplasm of nasopharynx, unspecified

External Resources

2025 ICD-10 guidelines from CMS.gov