Skip to main content
ICD-10/D04

D04 ICD-10-CM Code: Carcinoma in situ of skin

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Carcinoma in situ of skin is a non-billable ICD-10-CM category code (D04). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for D04 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.-)

Frequently Asked Questions (FAQ) & Clinical Guidance

Can D04 be billed directly?

No. D04 (Carcinoma in situ of skin) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to D04 in its code family, with their registry titles.

  • D04.0 — Carcinoma in situ of skin of lip
  • 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