D04
ICD-10Non-billable categoryCarcinoma in situ of skin
Official ICD-10-CM descriptor (FY2026)
Carcinoma in situ of skin
D04 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- erythroplasia of Queyrat (penis) NOS (D07.4)
- melanoma in situ (D03.-)
More specific codes under D04
- D04.0Carcinoma in situ of skin of lip
- D04.1Carcinoma in situ of skin of eyelid, including canthuscategory
- D04.2Ca in situ skin of ear and external auricular canalcategory
- D04.3Carcinoma in situ of skin of other and unsp parts of facecategory
- D04.4Carcinoma in situ of skin of scalp and neck
- D04.5Carcinoma in situ of skin of trunk
- D04.6Carcinoma in situ of skin of upper limb, including shouldercategory
- D04.7Carcinoma in situ of skin of lower limb, including hipcategory
- D04.8Carcinoma in situ of skin of other sites
- D04.9Carcinoma in situ of skin, unspecified
Where this code sits
- Chapter
- 2. Neoplasms (C00-D49)
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.