C44
ICD-10Non-billable categoryOther and unspecified malignant neoplasm of skin
Official ICD-10-CM descriptor (FY2026)
Other and unspecified malignant neoplasm of skin
C44 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.
Includes
- malignant neoplasm of sebaceous glands
- malignant neoplasm of sweat glands
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- Kaposi's sarcoma of skin (C46.0)
- malignant melanoma of skin (C43.-)
- malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)
- Merkel cell carcinoma (C4A.-)
More specific codes under C44
- C44.0Other and unspecified malignant neoplasm of skin of lipcategory
- C44.1Oth and unsp malignant neoplasm skin/ eyelid, inc canthuscategory
- C44.2Oth and unsp malig neoplasm skin/ ear and extrn auric canalcategory
- C44.3Oth and unsp malignant neoplasm skin/ and unsp parts of facecategory
- C44.4Other and unsp malignant neoplasm of skin of scalp and neckcategory
- C44.5Other and unspecified malignant neoplasm of skin of trunkcategory
- C44.6Oth and unsp malig neoplasm skin/ upper limb, inc shouldercategory
- C44.7Oth and unsp malignant neoplasm skin/ lower limb, inc hipcategory
- C44.8Oth and unsp malignant neoplasm of overlapping sites of skincategory
- C44.9Other and unsp malignant neoplasm of skin, unspecifiedcategory
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.