D04.0 is the authoritative medical code for Carcinoma in situ of skin of lip. This classification is used in medical billing and clinical recording to specify the clinical criteria for carcinoma in situ of skin of lip (ICD-10-CM D04.0), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Carcinoma in situ of skin of lip is a billable ICD-10-CM diagnosis code D04.0. Includes: Bowen's disease; erythroplasia; grade III intraepithelial neoplasia; Queyrat's erythroplasia. Excludes1 (not coded here): erythroplasia of Queyrat penis NOS D07.4; melanoma in situ D03.-. Excludes2 (not included here): carcinoma in situ of vermilion border of lip D00.01.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for D04.0 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- erythroplasia of Queyrat penis NOS D07.4
- melanoma in situ D03.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- carcinoma in situ of vermilion border of lip D00.01
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with D04.0?
Per Excludes1 instructions, D04.0 must not be reported with: erythroplasia of Queyrat (penis) NOS (D07.4); melanoma in situ (D03.-).
Can D04.0 be reported alongside related conditions?
Per Excludes2 instructions, D04.0 and the following may both be reported when both are present: carcinoma in situ of vermilion border of lip (D00.01).
Codes in This Family (28)
Official ICD-10-CM classifications in the same code family as D04.0, with their registry titles.
- D04 — Carcinoma in situ of skin
- D04.1 — Carcinoma in situ of skin of 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
- D04.111 — Carcinoma in situ of skin of right upper eyelid, including canthus
- D04.112 — Carcinoma in situ of skin of right lower eyelid, including canthus
- D04.12 — Carcinoma in situ of skin of left 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
- D04.2 — Carcinoma in situ of skin of 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
- D04.22 — Carcinoma in situ of skin of left ear and external auricular canal
- D04.3 — Carcinoma in situ of skin of other and unspecified parts 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
- D04.4 — Carcinoma in situ of skin of scalp and neck
- D04.5 — Carcinoma in situ of skin of trunk
- D04.6 — Carcinoma in situ of skin of 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
- D04.62 — Carcinoma in situ of skin of left upper limb, including shoulder
- D04.7 — Carcinoma in situ of skin of 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
- D04.72 — Carcinoma in situ of skin of left lower limb, including hip
- D04.8 — Carcinoma in situ of skin of other sites
- D04.9 — Carcinoma in situ of skin, unspecified
Neoplasm Table Sites (2)
Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.
- Neoplasm, neoplastic, lip, skin (commissure) (lower) (upper) — Ca in situ
- Neoplasm, neoplastic, skin NOS, lip (lower) (upper) — Ca in situ
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: