Non-Billable / Non-Specific Code
ICD-10-CM C43 is the diagnosis code for Malignant melanoma of skin. This code falls under the section "Melanoma and other malignant neoplasms of skin" within Chapter 2 â Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as C43. They are mutually exclusive:
The following conditions are not included in C43. If the patient has both, code each condition separately:
Understanding where C43 sits in the ICD-10-CM classification helps ensure proper coding:
No, C43 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
C43 is the ICD-10-CM diagnosis code for "Malignant melanoma of skin". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
C43 is located in Section C43-C44 â "Melanoma and other malignant neoplasms of skin" within Chapter 2 of the ICD-10-CM Tabular List.
C43 has 10 sub-code(s) that provide more specific detail: C43.0, C43.1, C43.2, C43.3, C43.4 and more.
Use C43 when the patients documented diagnosis matches "Malignant melanoma of skin" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Malignant melanoma of skin is C43.
No, C43 is non-billable. Use a more specific sub-code for primary diagnosis billing.
C43 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for C43 include: melanoma in situ (D03.-).
Yes, C43 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.