D03.51 — Melanoma in situ of anal skin
Is D03.51 billable?
Yes — D03.51 is billable for FY2027. D03.51 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. D03.51 may be submitted for encounters from October 1, 2026 through September 30, 2027.
D03.51 at a glance
| Code | D03.51 |
|---|---|
| Description | Melanoma in situ of anal skin |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does D03.51 group to?
D03.51 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.
- 595Major Skin Disorders with MCCmedical
- 596Major Skin Disorders without MCCmedical
How is D03.51 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D03.51. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Melanoma › in situ › anus, anal (malignant)
- Melanoma › in situ › perianal skin (malignant)
- Melanoma › in situ › perineum (malignant)
Inclusion terms
Alternative wording in documentation that is classified to D03.51.
- Melanoma in situ of anal margin
- Melanoma in situ of perianal skin
How long has D03.51 existed?
D03.51 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.