C11.3 — Malignant neoplasm of anterior wall of nasopharynx
Is C11.3 billable?
Yes — C11.3 is billable for FY2027. C11.3 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. C11.3 may be submitted for encounters from October 1, 2026 through September 30, 2027.
C11.3 at a glance
| Code | C11.3 |
|---|---|
| Description | Malignant neoplasm of anterior wall of nasopharynx |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C11.3 group to?
C11.3 sits in MDC Pre and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCCsurgical
- 012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CCsurgical
- 013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCCsurgical
Inclusion terms
Alternative wording in documentation that is classified to C11.3.
- 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
Use additional code — inherited from C11
Report an additional code alongside C11.3 to fully describe the condition. C11.3 is sequenced first.
How long has C11.3 existed?
C11.3 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with C11.3?
ICD-10-CM declares these codes mutually exclusive with C11.3 — exactly one of each pair can be correct for a given encounter.