C44.321 Squamous cell carcinoma of skin of nose

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.-)

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 173.32 Squamous cell carcinoma of skin of other and unspecified parts of face (approximate)

Code annotations containing back-references to C44.321

Back-references to C44.321

• Type 1 Excludes: C30.0 Malignant neoplasm of nasal cavity ("other and unspecified malignant neoplasm of skin of nose (C44.301, C44.311, C44.321, C44.391)")

Back-references to C44

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

Nearby codes

• C44.310 Basal cell carcinoma of skin of unspecified parts of face
• C44.311 Basal cell carcinoma of skin of nose
• C44.319 Basal cell carcinoma of skin of other parts of face
• C44.32 Squamous cell carcinoma of skin of other and unspecified parts of face
• C44.320 Squamous cell carcinoma of skin of unspecified parts of face
• C44.321 Squamous cell carcinoma of skin of nose (this code)
• C44.329 Squamous cell carcinoma of skin of other parts of face
• C44.39 Other specified malignant neoplasm of skin of other and unspecified parts of face
• C44.390 Other specified malignant neoplasm of skin of unspecified parts of face
• C44.391 Other specified malignant neoplasm of skin of nose
• C44.399 Other specified malignant neoplasm of skin of other parts of face