C11: Malignant neoplasm of nasopharynx
Codes under C11 (Malignant neoplasm of nasopharynx). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C11.0 | Malignant neoplasm of superior wall of nasopharynx | ✓ |
| C11.0 | Malignant neoplasm of superior wall of nasopharynx | ✓ |
| C11.1 | Malignant neoplasm of posterior wall of nasopharynx | ✓ |
| C11.1 | Malignant neoplasm of posterior wall of nasopharynx | ✓ |
| C11.2 | Malignant neoplasm of lateral wall of nasopharynx | ✓ |
| C11.2 | Malignant neoplasm of lateral wall of nasopharynx | ✓ |
| C11.3 | Malignant neoplasm of anterior wall of nasopharynx | ✓ |
| C11.3 | Malignant neoplasm of anterior wall of nasopharynx | ✓ |
| C11.8 | Malignant neoplasm of overlapping sites of nasopharynx | ✓ |
| C11.8 | Malignant neoplasm of overlapping sites of nasopharynx | ✓ |
| C11.9 | Malignant neoplasm of nasopharynx, unspecified | ✓ |
| C11.9 | Malignant neoplasm of nasopharynx, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code C11?
C11 is an ICD-10-CM category covering Malignant neoplasm of nasopharynx. It contains 12 more specific diagnosis codes, 12 of which are billable.
Is C11 a billable code?
No — C11 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example C11.0 — Malignant neoplasm of superior wall of nasopharynx). 12 of the 12 codes under C11 are billable.
What codes fall under C11?
C11 includes C11.0, C11.0, C11.1, C11.1, C11.2, plus 7 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free