Find comprehensive information on melanoma diagnosis, including clinical documentation, ICD-10 CM codes (C43.x), SNOMED CT concepts, and healthcare guidelines. Learn about melanoma staging, histopathology, differential diagnosis, and treatment options. This resource provides essential information for physicians, clinicians, medical coders, and healthcare professionals involved in the diagnosis and management of melanoma skin cancer.
Also known as
Malignant melanoma of skin
Cancerous growth of melanocytes in the skin.
Other malignant neoplasms of skin
Cancers of the skin excluding melanoma and Merkel cell carcinoma.
Secondary malignant neoplasm skin NOS
Melanoma that has spread to the skin from another primary site.
Personal history of malignant melanoma of skin
Patient has a documented history of skin melanoma, now resolved.
Follow this step-by-step guide to choose the correct ICD-10 code.
Is the melanoma in situ?
When to use each related code
| Description |
|---|
| Malignant skin cancer from melanocytes. |
| Atypical mole, potential precursor to melanoma. |
| Benign pigmented skin lesion, not melanoma. |
Missing or unspecified laterality (right/left) or specific site details for melanoma diagnosis impacts accurate coding and reimbursement.
Incorrect coding of melanoma histology (e.g., in situ, invasive) leads to inaccurate staging and treatment planning, impacting quality metrics.
Failure to document ulceration status (present/absent) affects staging, prognosis, and appropriate treatment coding for melanoma.
Patient presents with a concerning skin lesion suspicious for melanoma. History includes new or changing mole, exhibiting features concerning for malignancy such as asymmetry, border irregularity, color variegation, diameter greater than 6mm, and evolution over time (ABCDE criteria). The patient reports (insert pertinent negatives or positives such as itching, bleeding, pain, or no symptoms). Family history is positive/negative for melanoma and other skin cancers. Past medical history includes (list relevant medical conditions, sun exposure history, prior skin biopsies or melanoma diagnoses). Physical examination reveals a (color) pigmented lesion located on the (body location), measuring (size) mm in diameter. The lesion exhibits (describe characteristics such as asymmetry, border irregularity, color variations, elevation, ulceration). Differential diagnosis includes melanoma, atypical nevus, basal cell carcinoma, squamous cell carcinoma, seborrheic keratosis. Impression is suspicious for cutaneous melanoma. Plan includes excisional biopsy with margins for histopathologic evaluation, sentinel lymph node biopsy if indicated by Breslow thickness, and referral to dermatology andor oncology for further management based on pathology results. Patient education provided on melanoma risk factors, sun protection strategies, and skin self-examination. ICD-10 code C43.9 Malignant melanoma of skin, unspecified will be used pending pathology confirmation. CPT codes for the planned procedures will be determined based on the complexity of the biopsy and any additional procedures performed. Follow-up appointment scheduled for (date) to discuss pathology results and treatment plan.