C44.00 Unspecified malignant neoplasm of skin of lip

Billable ICD-10-CM code, FY2026.

Applies from C44 Other and unspecified malignant neoplasm of skin

Includes

• malignant neoplasm of sebaceous glands
• malignant neoplasm of sweat glands

Excludes1 (never code together)

• 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.-)

Applies from C44.0 Other and unspecified malignant neoplasm of skin of lip

Excludes1 (never code together)

• malignant neoplasm of lip (C00.-)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 173.00 Unspecified malignant neoplasm of skin of lip

Code annotations containing back-references to C44.00

Back-references to C44.0

• Type 1 Excludes: C00 Malignant neoplasm of lip ("other and unspecified malignant neoplasm of skin of lip (C44.0-)")

Back-references to C44

• Type 1 Excludes: C76 Malignant neoplasm of other and ill-defined sites ("malignant neoplasm of skin (C44.-)")

Nearby codes

• C44 Other and unspecified malignant neoplasm of skin
• C44.0 Other and unspecified malignant neoplasm of skin of lip
• C44.00 Unspecified malignant neoplasm of skin of lip (this code)
• C44.01 Basal cell carcinoma of skin of lip
• C44.02 Squamous cell carcinoma of skin of lip
• C44.09 Other specified malignant neoplasm of skin of lip
• C44.1 Other and unspecified malignant neoplasm of skin of eyelid, including canthus
• C44.10 Unspecified malignant neoplasm of skin of eyelid, including canthus