C11

C11: Malignant neoplasm of nasopharynx

Non-billable headerICD-10-CM

C11 is a non-billable header ICD-10-CM code for malignant neoplasm of nasopharynx. It cannot be billed on its own: choose one of the more specific child codes below.

Use additional code

Add a secondary code to capture the detail described below.

code to identify:
exposure to environmental tobacco smoke (Z77.22)
exposure to tobacco smoke in the perinatal period (P96.81)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

Other codes that can never be billed with C11

Their own Excludes1 notes name this code, so the conflict is not listed above.

C30.0Malignant neoplasm of nasal cavity

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead C11

6 child codes. Green means billable.

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