C79.83 — Secondary malignant neoplasm of oral cavity
BillableCCNew in FY2027
Is C79.83 billable?
Yes — C79.83 is billable for FY2027. C79.83 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. C79.83 may be submitted for encounters from October 1, 2026 through September 30, 2027. C79.83 is new in FY2027.
C79.83 at a glance
| Code | C79.83 |
|---|---|
| Description | Secondary malignant neoplasm of oral cavity |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| FY2027 change | New in FY2027 |
Which MS-DRGs does C79.83 group to?
C79.83 sits in MDC 17 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.
- 826Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCCsurgical
- 827Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CCsurgical
- 828Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCCsurgical
As a secondary diagnosis, C79.83 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
Excludes1 — never code together — inherited from C79
The conditions below can never be reported together with C79.83 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.