ICD-10 D04
Non-Billable HeaderCarcinoma in situ of skin
About ICD-10-CM D04
ICD-10-CM code D04 represents Carcinoma in situ of skin. This is a non-billable header code in the Neoplasms chapter (block D04). The 2026 edition of ICD-10-CM D04 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with D04. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- erythroplasia of Queyrat (penis) NOS (D07.4)
- melanoma in situ (D03.-)
Medicare LCD Coverage for D04
Local Coverage Determinations (LCDs) from CMS MACs that list D04 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing D04.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but D04 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with D04
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To D04
Other codes in section D00-D09 (In situ neoplasms).
ICD-10 D04, Billing FAQ
Is ICD-10 code D04 billable? +
No, D04 is a non-billable header code. Use a more specific child code from block D04 when submitting claims.
What codes are Type 1 Excludes for D04? +
Type 1 Excludes (never code together with D04): erythroplasia of Queyrat (penis) NOS (D07.4); melanoma in situ (D03.-)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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