2027 ICD-10-CM Diagnosis Code D03Melanoma in situ

ICD-10-CM Codes›C00–D49›D00-D09›D03

ICD-10-CM D03
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to D03: its own notes plus those printed at block D00-D09 and Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block D00-D09 In situ neoplasms applies to 106 codes
  • Bowen's disease
  • erythroplasia
  • grade III intraepithelial neoplasia
  • Queyrat's erythroplasia

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name D03, its category, or a range that includes it.

Applicable To 1

These notes mention D03.

  • Z86.006 Personal history of melanoma in-situ
    Conditions classifiable to D03

Excludes1 6

These codes carry an Excludes1 note naming D03: they are not reported together with it, unless the two conditions are unrelated.

  • C43 Malignant melanoma of skin
    melanoma in situ (D03.-)
  • D00 Carcinoma in situ of oral cavity, esophagus and stomach
    melanoma in situ (D03.-)
  • D01 Carcinoma in situ of other and unspecified digestive organs
    melanoma in situ (D03.-)
  • D02 Carcinoma in situ of middle ear and respiratory system
    melanoma in situ (D03.-)
  • D04 Carcinoma in situ of skin
    melanoma in situ (D03.-)
  • D09 Carcinoma in situ of other and unspecified sites
    melanoma in situ (D03.-)

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About D03Overview

What is the ICD-10 code for melanoma in situ?

D03 is the ICD-10-CM category for melanoma in situ, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.