C44

C44: Other and unspecified malignant neoplasm of skin

Non-billable headerICD-10-CM

C44 is a non-billable header ICD-10-CM code for other and unspecified malignant neoplasm of skin. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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.-)

Includes

Conditions this code covers.

malignant neoplasm of sebaceous glands
malignant neoplasm of sweat glands

Other codes that can never be billed with C44

Their own Excludes1 notes name this code, so the conflict is not listed above.

C00Malignant neoplasm of lip
C30.0Malignant neoplasm of nasal cavity
C30.1Malignant neoplasm of middle ear
C50Malignant neoplasm of breast
C69Malignant neoplasm of eye and adnexa
C76Malignant neoplasm of other and ill-defined sites

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead C44

10 child codes. Green means billable.