2026 ICD-10-CM Diagnosis Code C44.09Other specified malignant neoplasm of skin of lip
ICD-10-CM Codes›C00–D49›C43-C44›C44
- Billable — Valid for Submission
- Chronic Condition
C44.09 is a billable ICD-10-CM diagnosis code for other specified malignant neoplasm of skin of lip. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 11 through 13, 606 through 607. Coders also document this condition as angiosarcoma of skin. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Skin cancers - all other types.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Angiosarcoma of skin
- Primary angiosarcoma of face
- Primary angiosarcoma of head
- Primary angiosarcoma of skin of lip
- Primary malignant neoplasm of skin of lip
- Primary malignant sarcoma of skin
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| lip › skin (commissure) (lower) (upper) › specified type NEC | C44.09 | – | – | – | – | – |
| skin NOS › lip (lower) (upper) › specified type NEC | C44.09 | – | – | – | – | – |
Patient EducationClinical
Skin Cancer
Skin cancer is the most common form of cancer in the United States. The two most common types are basal cell cancer and squamous cell cancer. They usually form on the head, face, neck, hands, and arms. Another type of skin cancer, melanoma, is more dangerous but less common.
Read the full article at MedlinePlus
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Convert C44.09 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C44.09Overview
What is the ICD-10 code for other specified malignant neoplasm of skin of lip?
The ICD-10-CM code for other specified malignant neoplasm of skin of lip is C44.09 (sometimes written as C4409). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is C44.09 (Other and unspecified malignant neoplasm of skin of lip) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified malignant neoplasm of skin of lip on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C44.09 group to?
When other specified malignant neoplasm of skin of lip is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 606, 607, with relative weights from 0.9064 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of C44.09?
Under the General Equivalence Mappings, other specified malignant neoplasm of skin of lip converts to ICD-9-CM 173.09 (malig neo skin lip NEC). The mapping is a direct match.
