ICD-10-CM category
D04: Carcinoma in situ of skin
Codes under D04 (Carcinoma in situ of skin). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| D04.0 | Carcinoma in situ of skin of lip | ✓ |
| D04.0 | Carcinoma in situ of skin of lip | ✓ |
| D04.1 | Carcinoma in situ of skin of eyelid, including canthus | — |
| D04.1 | Carcinoma in situ of skin of eyelid, including canthus | — |
| D04.2 | Carcinoma in situ of skin of ear and external auricular canal | — |
| D04.2 | Carcinoma in situ of skin of ear and external auricular canal | — |
| D04.3 | Carcinoma in situ of skin of other and unspecified parts of face | — |
| D04.3 | Carcinoma in situ of skin of other and unspecified parts of face | — |
| D04.4 | Carcinoma in situ of skin of scalp and neck | ✓ |
| D04.4 | Carcinoma in situ of skin of scalp and neck | ✓ |
| D04.5 | Carcinoma in situ of skin of trunk | ✓ |
| D04.5 | Carcinoma in situ of skin of trunk | ✓ |
| D04.6 | Carcinoma in situ of skin of upper limb, including shoulder | — |
| D04.6 | Carcinoma in situ of skin of upper limb, including shoulder | — |
| D04.7 | Carcinoma in situ of skin of lower limb, including hip | — |
| D04.7 | Carcinoma in situ of skin of lower limb, including hip | — |
| D04.8 | Carcinoma in situ of skin of other sites | ✓ |
| D04.8 | Carcinoma in situ of skin of other sites | ✓ |
| D04.9 | Carcinoma in situ of skin, unspecified | ✓ |
| D04.9 | Carcinoma in situ of skin, unspecified | ✓ |
| D04.10 | Carcinoma in situ of skin of unspecified eyelid, including canthus | ✓ |
| D04.10 | Carcinoma in situ of skin of unspecified eyelid, including canthus | ✓ |
| D04.11 | Carcinoma in situ of skin of right eyelid, including canthus | — |
| D04.11 | Carcinoma in situ of skin of right eyelid, including canthus | — |
| D04.12 | Carcinoma in situ of skin of left eyelid, including canthus | — |
| D04.12 | Carcinoma in situ of skin of left eyelid, including canthus | — |
| D04.20 | Carcinoma in situ of skin of unspecified ear and external auricular canal | ✓ |
| D04.20 | Carcinoma in situ of skin of unspecified ear and external auricular canal | ✓ |
| D04.21 | Carcinoma in situ of skin of right ear and external auricular canal | ✓ |
| D04.21 | Carcinoma in situ of skin of right ear and external auricular canal | ✓ |
| D04.22 | Carcinoma in situ of skin of left ear and external auricular canal | ✓ |
| D04.22 | Carcinoma in situ of skin of left ear and external auricular canal | ✓ |
| D04.30 | Carcinoma in situ of skin of unspecified part of face | ✓ |
| D04.30 | Carcinoma in situ of skin of unspecified part of face | ✓ |
| D04.39 | Carcinoma in situ of skin of other parts of face | ✓ |
| D04.39 | Carcinoma in situ of skin of other parts of face | ✓ |
| D04.60 | Carcinoma in situ of skin of unspecified upper limb, including shoulder | ✓ |
| D04.60 | Carcinoma in situ of skin of unspecified upper limb, including shoulder | ✓ |
| D04.61 | Carcinoma in situ of skin of right upper limb, including shoulder | ✓ |
| D04.61 | Carcinoma in situ of skin of right upper limb, including shoulder | ✓ |
| D04.62 | Carcinoma in situ of skin of left upper limb, including shoulder | ✓ |
| D04.62 | Carcinoma in situ of skin of left upper limb, including shoulder | ✓ |
| D04.70 | Carcinoma in situ of skin of unspecified lower limb, including hip | ✓ |
| D04.70 | Carcinoma in situ of skin of unspecified lower limb, including hip | ✓ |
| D04.71 | Carcinoma in situ of skin of right lower limb, including hip | ✓ |
| D04.71 | Carcinoma in situ of skin of right lower limb, including hip | ✓ |
| D04.72 | Carcinoma in situ of skin of left lower limb, including hip | ✓ |
| D04.72 | Carcinoma in situ of skin of left lower limb, including hip | ✓ |
| D04.111 | Carcinoma in situ of skin of right upper eyelid, including canthus | ✓ |
| D04.111 | Carcinoma in situ of skin of right upper eyelid, including canthus | ✓ |
| D04.112 | Carcinoma in situ of skin of right lower eyelid, including canthus | ✓ |
| D04.112 | Carcinoma in situ of skin of right lower eyelid, including canthus | ✓ |
| D04.121 | Carcinoma in situ of skin of left upper eyelid, including canthus | ✓ |
| D04.121 | Carcinoma in situ of skin of left upper eyelid, including canthus | ✓ |
| D04.122 | Carcinoma in situ of skin of left lower eyelid, including canthus | ✓ |
| D04.122 | Carcinoma in situ of skin of left lower eyelid, including canthus | ✓ |
Frequently asked questions
What is ICD-10-CM code D04?
D04 is an ICD-10-CM category covering Carcinoma in situ of skin. It contains 56 more specific diagnosis codes, 42 of which are billable.
Is D04 a billable code?
No — D04 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example D04.0 — Carcinoma in situ of skin of lip). 42 of the 56 codes under D04 are billable.
What codes fall under D04?
D04 includes D04.0, D04.0, D04.1, D04.1, D04.2, plus 51 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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