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ICD-10/D05

D05 ICD-10-CM Code: Carcinoma in situ of breast

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 breast is a non-billable ICD-10-CM category code (D05). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for D05 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.

  • carcinoma in situ of skin of breast (D04.5)
  • melanoma in situ of breast (skin) (D03.5)
  • Paget's disease of breast or nipple (C50.-)
  • malignant neoplasm of breast (C50.-)

Frequently Asked Questions (FAQ) & Clinical Guidance

Can D05 be billed directly?

No. D05 (Carcinoma in situ of breast) 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 D05 in its code family, with their registry titles.

  • D05.0 — Lobular carcinoma in situ of breast
  • D05.00 — Lobular carcinoma in situ of unspecified breast
  • D05.01 — Lobular carcinoma in situ of right breast
  • D05.02 — Lobular carcinoma in situ of left breast
  • D05.1 — Intraductal carcinoma in situ of breast
  • D05.10 — Intraductal carcinoma in situ of unspecified breast
  • D05.11 — Intraductal carcinoma in situ of right breast
  • D05.12 — Intraductal carcinoma in situ of left breast
  • D05.8 — Other specified type of carcinoma in situ of breast
  • D05.80 — Other specified type of carcinoma in situ of unspecified breast
  • D05.81 — Other specified type of carcinoma in situ of right breast
  • D05.82 — Other specified type of carcinoma in situ of left breast
  • D05.9 — Unspecified type of carcinoma in situ of breast
  • D05.90 — Unspecified type of carcinoma in situ of unspecified breast
  • D05.91 — Unspecified type of carcinoma in situ of right breast
  • D05.92 — Unspecified type of carcinoma in situ of left breast