C50.A2 — Malignant inflammatory neoplasm of left breast
Is C50.A2 billable?
Yes — C50.A2 is billable for FY2027. C50.A2 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. C50.A2 may be submitted for encounters from October 1, 2026 through September 30, 2027.
C50.A2 at a glance
| Code | C50.A2 |
|---|---|
| Description | Malignant inflammatory neoplasm of left breast |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C50.A2 group to?
C50.A2 sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 582Mastectomy for Malignancy with CC/MCCsurgical
- 583Mastectomy for Malignancy without CC/MCCsurgical
Excludes1 — never code together — inherited from C50
The conditions below can never be reported together with C50.A2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from C50
Report an additional code alongside C50.A2 to fully describe the condition. C50.A2 is sequenced first.
- code to identify estrogen, and other hormones and factors receptor status (Z17.-)
How long has C50.A2 existed?
C50.A2 first appears in FY2026.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.