ICD-10-CM D03 is the diagnosis code for Melanoma in situ. This code falls under the section "In situ neoplasms" within Chapter 2 — 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.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where D03 sits in the ICD-10-CM classification helps ensure proper coding:
No, D03 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
D03 is the ICD-10-CM diagnosis code for "Melanoma in situ". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
D03 is located in Section D00-D09 — "In situ neoplasms" within Chapter 2 of the ICD-10-CM Tabular List.
D03 has 10 sub-code(s) that provide more specific detail: D03.0, D03.1, D03.2, D03.3, D03.4 and more.
Use D03 when the patients documented diagnosis matches "Melanoma in situ" 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 Melanoma in situ is D03.
No, D03 is non-billable. Use a more specific sub-code for primary diagnosis billing.
D03 is in Chapter 2 of the ICD-10-CM Tabular List.
Yes, D03 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.