Non-Billable / Non-Specific Code
ICD-10-CM D04 is the diagnosis code for Carcinoma in situ of skin. 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.
The following conditions should never be coded at the same time as D04. They are mutually exclusive:
Understanding where D04 sits in the ICD-10-CM classification helps ensure proper coding:
No, D04 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
D04 is the ICD-10-CM diagnosis code for "Carcinoma in situ of skin". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
D04 is located in Section D00-D09 — "In situ neoplasms" within Chapter 2 of the ICD-10-CM Tabular List.
D04 has 10 sub-code(s) that provide more specific detail: D04.0, D04.1, D04.2, D04.3, D04.4 and more.
Use D04 when the patients documented diagnosis matches "Carcinoma in situ 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 Carcinoma in situ of skin is D04.
No, D04 is non-billable. Use a more specific sub-code for primary diagnosis billing.
D04 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for D04 include: erythroplasia of Queyrat (penis) NOS (D07.4); melanoma in situ (D03.-).
Yes, D04 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.