2026 ICD-10-CM Diagnosis Code D03Melanoma in situ

ICD-10-CM Codes›C00–D49›D00-D09›D03

ICD-10-CM D03
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D03 is a non-billable ICD-10-CM category code for melanoma in situ, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D03.0, D03.10, D03.111, and D03.112.

Code Identity

ICD-10-CM Code
D03
Billable Status
No — Non-Billable Category
Code Describes
Melanoma in situ
Short Description
Melanoma in situ
Same as the full description in the CMS dataset.
Chapter
D00-D09
In situ neoplasms

Code Classification

ChapterC00–D49Neoplasms
SectionD00-D09In situ neoplasms
CategoryD03Melanoma in situ
This CodeD03Melanoma in situ

Specific Coding for Melanoma in situOverview

Non-specific codes like D03 require more characters. Use one of these billable codes instead:

  • Use D03.0 for Melanoma in situ of lip

  • D03.1 for Melanoma in situ of eyelid, including canthus

  • Use D03.10 for Melanoma in situ of unspecified eyelid, including canthus

  • D03.11 for Melanoma in situ of right eyelid, including canthus

  • D03.12 for Melanoma in situ of left eyelid, including canthus

  • D03.2 for Melanoma in situ of ear and external auricular canal

  • Use D03.20 for Melanoma in situ of unspecified ear and external auricular canal

  • Use D03.21 for Melanoma in situ of right ear and external auricular canal

  • Use D03.22 for Melanoma in situ of left ear and external auricular canal

  • D03.3 for Melanoma in situ of other and unspecified parts of face

  • Use D03.30 for Melanoma in situ of unspecified part of face

  • Use D03.39 for Melanoma in situ of other parts of face

  • Use D03.4 for Melanoma in situ of scalp and neck

  • D03.5 for Melanoma in situ of trunk

  • Use D03.51 for Melanoma in situ of anal skin

  • Use D03.52 for Melanoma in situ of breast (skin) (soft tissue)

  • Use D03.59 for Melanoma in situ of other part of trunk

  • D03.6 for Melanoma in situ of upper limb, including shoulder

  • Use D03.60 for Melanoma in situ of unspecified upper limb, including shoulder

  • Use D03.61 for Melanoma in situ of right upper limb, including shoulder

  • Use D03.62 for Melanoma in situ of left upper limb, including shoulder

  • D03.7 for Melanoma in situ of lower limb, including hip

  • Use D03.70 for Melanoma in situ of unspecified lower limb, including hip

  • Use D03.71 for Melanoma in situ of right lower limb, including hip

  • Use D03.72 for Melanoma in situ of left lower limb, including hip

  • Use D03.8 for Melanoma in situ of other sites

  • Use D03.9 for Melanoma in situ, unspecified

Patient EducationClinical

Melanoma

Melanoma is the most serious type of skin cancer. Often the first sign of melanoma is a change in the size, shape, color, or feel of a mole. Most melanomas have a black or black-blue area. Melanoma may also appear as a new mole. It may be black, abnormal, or "ugly looking."

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D03Overview

Is D03 (Melanoma in situ) a billable code?

No. This is a category header that groups the codes for melanoma in situ, and headers cannot be submitted on claims. Claims for melanoma in situ need a more specific code from this category, such as D03.0, D03.10, and D03.111.