C74.91 — Malignant neoplasm of unspecified part of right adrenal gland
Is C74.91 billable?
Yes, but C74.91 is an unspecified code. C74.91 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, C74.91 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting C74.91 — the more specific alternatives are listed below.
C74.91 at a glance
| Code | C74.91 |
|---|---|
| Description | Malignant neoplasm of unspecified part of right adrenal gland |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C74.91 group to?
C74.91 sits in MDC 10 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.
- 643Endocrine Disorders with MCCmedical
- 644Endocrine Disorders with CCmedical
- 645Endocrine Disorders without CC/MCCmedical
As a secondary diagnosis, C74.91 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How long has C74.91 existed?
C74.91 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.