C11 (Malignant neoplasm of nasopharynx) is an umbrella ICD-10-CM medical diagnosis code in the Neoplasms chapter. It identifies cases of malignant neoplasm of nasopharynx for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

C11 — Malignant neoplasm of nasopharynx

Chapter C00-D49: Neoplasms

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Sub-codes under C11

C11.0Malignant neoplasm of superior wall of nasopharynxC11.1Malignant neoplasm of posterior wall of nasopharynxC11.2Malignant neoplasm of lateral wall of nasopharynxC11.3Malignant neoplasm of anterior wall of nasopharynxC11.8Malignant neoplasm of overlapping sites of nasopharynxC11.9Malignant neoplasm of nasopharynx, unspecified

Common questions about C11 (Malignant neoplasm of nasopharynx)

What does ICD-10 code C11 mean?
C11 is the ICD-10-CM 2025 code for Malignant neoplasm of nasopharynx. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is C11 a billable diagnosis code?
C11 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under C11. Browse the sub-codes listed on this page.
Which ICD-10 chapter does C11 belong to?
C11 belongs to the chapter "Neoplasms" (codes C00-D49). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Malignant neoplasm of nasopharynx?
For a plain-language explanation of Malignant neoplasm of nasopharynx, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Malignant neoplasm of nasopharynx" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗