C44.9

C44.9: Other and unspecified malignant neoplasm of skin, unspecified

Non-billable headerICD-10-CM

C44.9 is a non-billable header ICD-10-CM code for other and unspecified malignant neoplasm of skin, unspecified. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above C44.9

A category’s note binds every code beneath it.

Written on C44: Other and unspecified malignant neoplasm of skin

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.-)

Other codes that can never be billed with C44.9

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

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 C44.9

4 child codes. Green means billable.