D05.0
⚠ Non-billable (Header)Lobular carcinoma in situ of breast
Neoplasms (C00-D49)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • 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.-)
Child Codes (3)
Clinical Description
ICD-10-CM code D05.0 represents lobular carcinoma in situ of breast. This code falls under the Neoplasms (C00-D49) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 5-character code at the 4th level of specificity. There are 3 more specific child codes under D05.0. Coders should note that D05.0 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code D05.0?
ICD-10-CM code D05.0 is "Lobular carcinoma in situ of breast". It belongs to the category: Neoplasms (C00-D49).
Is D05.0 a billable ICD-10 code?
No, D05.0 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with D05.0?
D05.0 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Can D05.0 be coded with other codes?
D05.0 has 1 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in D05
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)