ICD Code C44.90

ICD code C44.90 is an unspecified malignant (cancerous) tumor of the skin, where neither the exact type of cancer nor the specific location on the skin has been identified.

1. Presence of a malignant neoplasm identified on the skin

2. Malignancy confirmed by clinical evaluation or pathology, but lacking further specification

3. Primary site of the skin lesion is identified, but the exact anatomical location is not specified

4. Histological type of the skin cancer is not documented or cannot be determined

5. No additional details available regarding the behavior, cell type, or specific site of the neoplasm

6. Symptoms may include a persistent skin lesion, nodule, ulcer, or growth with or without bleeding, but without definitive classification

Relevant CPT codes that may be used to treat ICD code C44.90 include:

- 11600–11646 (Excision of malignant skin lesion, depending on size and location)

- 12031–12057 (Repair, intermediate, for closure after excision)

- 13100–13153 (Repair, complex, for closure after excision)

- 14000–14302 (Adjacent tissue transfer or rearrangement)

- 15002–15005 (Surgical preparation or creation of recipient site)

- 17000–17004 (Destruction, premalignant lesions, but may be used if diagnosis is uncertain)

- 17260–17286 (Destruction, malignant skin lesions, depending on size and location)

- 88305 (Pathology examination of excised tissue)

CPT code selection depends on lesion size, location, and method of treatment.

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