2025 ICD-10-CM code C44.391

Malignant neoplasm of the skin of the nose, not otherwise specified.

Use this code when the neoplasm is not described by a more specific code within C43-C44. Refer to ICD-10-CM guidelines for neoplasms and skin malignancies.

Medical necessity is established by the presence of a confirmed malignant neoplasm requiring treatment or management.

The provider is responsible for diagnosing and managing this condition, which may involve biopsy, physical exam, imaging, and treatments like excision, curettage, cryosurgery, Mohs surgery, radiation, or chemotherapy.

In simple words: This code indicates a type of skin cancer on the nose that isn't covered by more specific codes.It might involve the oil or sweat glands in the skin.

Other specified malignant neoplasm of skin of nose. This code represents a malignant growth on the skin of the nose that is not classified under other specific codes within the C44 category.It includes malignancies of sebaceous and sweat glands. It excludes Kaposi's sarcoma (C46.0), malignant melanoma (C43.-), skin malignancies of genital organs (C51-C52, C60.-, C63.2), and Merkel cell carcinoma (C4A.-).

Example 1: A patient presents with a non-healing sore on the skin of their nose, confirmed by biopsy as a malignant neoplasm not otherwise specified.Code C44.391 is used., A patient with a history of sun exposure has a small, hard nodule on their nose that is biopsied and diagnosed as a malignant tumor of the sweat glands. Code C44.391 would be appropriate., A patient has a cancerous lesion removed from the skin of their nose. The pathology report indicates malignancy of the sebaceous glands. C44.391 is used to code the diagnosis.

Documentation should include the location and description of the lesion, biopsy results confirming malignancy, and details of any treatments provided.

  • Specialties:Dermatology, Oncology, Plastic Surgery
  • Place of Service:Office, Outpatient Hospital, Inpatient Hospital
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