C11.3 ICD-10-CM Code: Malignant neoplasm of anterior wall of nasopharynx
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
C11.3Malignant neoplasm of anterior wall of nasopharynx
ICD-10-CM diagnosis code · United States clinical modification
Where C11.3 sits
- 1
Chapter 2
Neoplasms (C00-D49)
- 2
Section
Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
- 3
Category C11
Malignant neoplasm of nasopharynx
- 4
Code C11.3
Malignant neoplasm of anterior wall of nasopharynx
Notes for this code
Inclusion terms
- Malignant neoplasm of floor of nasopharynx
- Malignant neoplasm of nasopharyngeal (anterior) (posterior) surface of soft palate
- Malignant neoplasm of posterior margin of nasal choana
- Malignant neoplasm of posterior margin of nasal septum
Code first
No “code first” instruction is listed for C11.3.
Use additional code
No “use additional code” instruction is listed for C11.3.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for C11.3.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for C11.3.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code C11.3 mean?
C11.3 is the FY 2027 U.S. ICD-10-CM code for “Malignant neoplasm of anterior wall of nasopharynx.”
Is C11.3 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, C11.3 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is C11.3 located in ICD-10-CM?
C11.3 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of lip, oral cavity and pharynx (C00-C14) (C00–C14), under category C11, Malignant neoplasm of nasopharynx.
What coding notes are listed for C11.3?
Its listed inclusion terms are Malignant neoplasm of floor of nasopharynx; Malignant neoplasm of nasopharyngeal (anterior) (posterior) surface of soft palate; Malignant neoplasm of posterior margin of nasal choana; Malignant neoplasm of posterior margin of nasal septum. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.