U.S. ICD-10-CM · FY 2027

D04 ICD-10-CM Code: Carcinoma in situ of skin

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

D04

Carcinoma in situ of skin

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where D04 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    In situ neoplasms (D00-D09)

  3. 3

    Category D04

    Carcinoma in situ of skin

  4. 4

    Code D04

    Carcinoma in situ of skin

More specific choices

Codes under D04

D04 is a non-billable category. Choose the child code that best matches the documented diagnosis.

D04.0

Carcinoma in situ of skin of lip

D04.1

Carcinoma in situ of skin of eyelid, including canthus

D04.2

Carcinoma in situ of skin of ear and external auricular canal

D04.3

Carcinoma in situ of skin of other and unspecified parts of face

D04.4

Carcinoma in situ of skin of scalp and neck

D04.5

Carcinoma in situ of skin of trunk

D04.6

Carcinoma in situ of skin of upper limb, including shoulder

D04.7

Carcinoma in situ of skin of lower limb, including hip

D04.8

Carcinoma in situ of skin of other sites

D04.9

Carcinoma in situ of skin, unspecified

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for D04.

Code first

No “code first” instruction is listed for D04.

Use additional code

No “use additional code” instruction is listed for D04.

Excludes1

Conditions that should not be reported together with this code.

  • erythroplasia of Queyrat (penis) NOS (D07.4)
  • melanoma in situ (D03.-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for D04.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code D04 mean?

D04 is the FY 2027 U.S. ICD-10-CM code for “Carcinoma in situ of skin.”

Is D04 a billable or specific ICD-10-CM code?

No. D04 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is D04 located in ICD-10-CM?

D04 is listed in Chapter 2, Neoplasms (C00-D49), within In situ neoplasms (D00-D09) (D00–D09), under category D04, Carcinoma in situ of skin.

What coding notes are listed for D04?

No inclusion terms are listed for D04 in this reference record. No code-first instruction is listed. Excludes1 notes: erythroplasia of Queyrat (penis) NOS (D07.4); melanoma in situ (D03.-). No Excludes2 note is listed.

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