D03.59

Billable

Melanoma in situ of other part of trunk

HCC Category Mapping

V28HCC 23 — Melanoma and Other Skin Cancers

0.251

V24HCC 12 — Breast, Prostate, and Other Cancers and Tumors

0.150

ESRDHCC 12 — Breast, Prostate, and Other Cancers and Tumors

0.000

RxHCCHCC 22 — Cancer, Other Specified Sites

0.000

What This Code Means

Early-stage melanoma confined to the skin surface on other trunk areas not specifically classified, such as the back, abdomen, or chest wall.

Coding Tips

•Use this code for trunk locations not covered by D03.51 or D03.52; document the specific trunk location in the record
•Trunk melanomas may have different prognostic significance compared to extremity locations

Clinical Significance

Melanoma in situ of other parts of the trunk captures non-invasive melanocytic neoplasms on trunk locations not classified elsewhere, including the back, abdomen, chest wall, and flank. The trunk is one of the most common body sites for melanoma development, particularly the upper back in males. Detection at the in situ stage provides excellent outcomes with complete excision.

Documentation Requirements

✓Biopsy-confirmed melanoma in situ with the specific trunk location documented (back, abdomen, chest, flank).
✓Margin status after excision and the clinical subtype (superficial spreading, lentigo maligna) should be recorded.
✓Note any associated risk factors such as history of sunburns or multiple nevi.

Commonly Confused Codes

D03.51 (anal skin) and D03.52 (breast skin) have their own dedicated trunk codes D03.4 (scalp and neck) covers the adjacent head/neck region D03.8 (other sites) should not be used when a trunk location is documented C43.59 (invasive melanoma of other part of trunk) indicates dermal invasion.

Code Hierarchy

└D03Melanoma in situ └D03.5Melanoma in situ of trunk └D03.59Melanoma in situ of other part of trunk

└D03.59Melanoma in situ of other part of trunk