Short answer · Medically reviewed summary · Last updated: 2026-05-08
Skin cancer does not have a single ICD code because it encompasses various malignancies, but non-melanoma skin cancer is generally categorized under ICD-10 code C44 and ICD-9 code 173. Melanoma of the skin is classified separately under ICD-10 code C43 and ICD-9 code 172.
ICD10 code of Skin Cancer and ICD9 code
ICD-10 and ICD-9 codes for Skin Cancer, with classification details for clinicians, coders and patients.
Skin cancer does not have a single ICD code because it encompasses various malignancies, but non-melanoma skin cancer is generally categorized under ICD-10 code C44 and ICD-9 code 173. Melanoma of the skin is classified separately under ICD-10 code C43 and ICD-9 code 172. These codes are essential for medical billing and tracking the clinical progression of skin cancer cases globally.
What are the primary classifications of skin cancer?
In clinical practice, skin cancer is broadly divided into non-melanoma and melanoma types. Basal cell carcinoma and squamous cell carcinoma are the most frequent forms of non-melanoma skin cancer. Because these conditions have different biological behaviors and treatment paths, they require specific ICD coding to ensure accurate documentation within electronic health records.
How are skin cancer diagnostic codes determined?
Physicians determine the correct code by identifying the specific histology and anatomical site of the skin cancer. Accurate coding is critical for coordinating care and insurance coverage. The following list highlights the primary diagnostic categories used in clinical settings:
- ICD-10 C43: Malignant melanoma of the skin.
- ICD-10 C44: Other and unspecified malignant neoplasms of the skin.
- ICD-9 172: Malignant melanoma of the skin.
- ICD-9 173: Other malignant neoplasm of the skin.
Why is documentation important for the skin cancer community?
For the 34 members of the DiseaseMaps skin cancer community, precise medical documentation helps in understanding the prevalence and treatment outcomes of their specific diagnosis. Proper coding ensures that the medical history remains consistent across different specialists, including dermatologists, oncologists, and surgeons, which is vital for managing long-term skin health.
Next steps
- Consult your dermatologist to confirm the specific histological diagnosis and ICD-10 code associated with your medical records.
- Request a copy of your pathology report to understand the exact classification of your skin condition.
- Join the DiseaseMaps skin cancer community to share experiences and insights with others navigating similar diagnostic journeys.
Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider.
References
- World Health Organization (WHO): International Classification of Diseases (ICD-10).
- National Cancer Institute (NCI): Skin Cancer Prevention and Treatment Data.
- American Academy of Dermatology (AAD): Clinical Guidelines for Skin Cancer.
- NIH Genetic and Rare Diseases Information Center (GARD).
