D04.121 — Carcinoma in situ of skin of left upper eyelid, including canthus
Is D04.121 billable?
Yes — D04.121 is billable for FY2027. D04.121 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. D04.121 may be submitted for encounters from October 1, 2026 through September 30, 2027.
D04.121 at a glance
| Code | D04.121 |
|---|---|
| Description | Carcinoma in situ of skin of left upper eyelid, including canthus |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does D04.121 group to?
D04.121 sits in MDC 02 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.
- 124Other Disorders of the Eye with MCC or Thrombolytic Agentmedical
- 125Other Disorders of the Eye without MCCmedical
Excludes1 — never code together — inherited from D04
The conditions below can never be reported together with D04.121 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
How long has D04.121 existed?
D04.121 first appears in FY2019.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.