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C11

Non-billable

Malignant neoplasm of nasopharynx

C11 is the ICD-10-CM code for Malignant neoplasm of nasopharynx. It is a non-billable category code — use a more specific child code such as C11.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
6
Edition
FY2026

C00-D49 Neoplasms

What this means — in plain language

MedlinePlus · NIH

Throat cancer is a type of head and neck cancer . Throat cancer has different names, depending on which part of the throat is affected. The different parts of your throat are called the oropharynx, the hypopharynx, the nasopharynx, and the larynx, or voice box. The main risk factors for throat cancer are tobacco use and heavy drinking. Certain types of throat cancer also have other risk factors. For example, having…

Read more about Throat Cancer at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Use additional code

  • •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)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Frequently asked questions

What is ICD-10 code C11?
C11 is the ICD-10-CM code for "Malignant neoplasm of nasopharynx". It falls under C00-D49 Neoplasms.
Is C11 a billable code?
No — C11 is a non-billable header code. Use a more specific child code (such as C11.0) for billing.
What are the subcodes of C11?
C11 has 6 more specific child codes, including C11.0, C11.1, C11.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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