C54.9 — Malignant neoplasm of corpus uteri, unspecified
Is C54.9 billable?
Yes, but C54.9 is an unspecified code. C54.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, C54.9 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 C54.9 — the more specific alternatives are listed below.
C54.9 at a glance
| Code | C54.9 |
|---|---|
| Description | Malignant neoplasm of corpus uteri, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C54.9 group to?
C54.9 sits in MDC 13 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.
- 731Uterine and Adnexa Procedures for Malignancy with MCCsurgical
- 732Uterine and Adnexa Procedures for Malignancy with CCsurgical
- 733Uterine and Adnexa Procedures for Malignancy without CC/MCCsurgical
How is C54.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to C54.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Müllerian mixed tumor › unspecified site
- Tumor › Müllerian, mixed › unspecified site
How long has C54.9 existed?
C54.9 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.