C43

Non-billable

Malignant melanoma of skin

C43 is the ICD-10-CM code for Malignant melanoma of skin. It is a non-billable category code — use a more specific child code such as C43.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
10
Edition
FY2026

C00-D49 Neoplasms

Excludes1 — not coded here

  • melanoma in situ (D03.-)

Excludes2 — not included here

  • malignant melanoma of skin of genital organs (C51-C52, C60.-, C63.-)
  • Merkel cell carcinoma (C4A.-)
  • sites other than skin-code to malignant neoplasm of the site

Frequently asked questions

What is ICD-10 code C43?
C43 is the ICD-10-CM code for "Malignant melanoma of skin". It falls under C00-D49 Neoplasms.
Is C43 a billable code?
No — C43 is a non-billable header code. Use a more specific child code (such as C43.0) for billing.
What are the subcodes of C43?
C43 has 10 more specific child codes, including C43.0, C43.1, C43.2.
What is excluded from C43?
Excludes1 (not coded here): melanoma in situ (D03.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.