C43
Header — not billableMalignant melanoma of skin
The ICD-10 code for malignant melanoma of skin is C43.
C43 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 10 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- melanoma in situ (D03.-)
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under C43
- C43.0Malignant melanoma of lip
- C43.1Malignant melanoma of eyelid, including canthusnon-billable header
- C43.2Malignant melanoma of ear and external auricular canalnon-billable header
- C43.3Malignant melanoma of other and unspecified parts of facenon-billable header
- C43.4Malignant melanoma of scalp and neck
- C43.5Malignant melanoma of trunknon-billable header
- C43.6Malignant melanoma of upper limb, including shouldernon-billable header
- C43.7Malignant melanoma of lower limb, including hipnon-billable header
- C43.8Malignant melanoma of overlapping sites of skin
- C43.9Malignant melanoma of skin, unspecified
Related codes in this category
- C44Other and unspecified malignant neoplasm of skinnon-billable header
- C4AMerkel cell carcinomanon-billable header
- C43Malignant melanoma of skinnon-billable header