ICD-10 Code D05.82 – Other specified type of carcinoma in situ of left breast (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D05.82 – Other specified type of carcinoma in situ of left breast
What it is
D05.82 identifies carcinoma in situ limited to the left breast when the record specifies a nonstandard or other named type. It means malignant cells are present but have not invaded surrounding breast tissue.
Clinical signs
Clinical features vary; refer to documentation. This diagnosis is often confirmed by imaging and pathology showing in situ disease in the left breast, with the histologic type noted as other specified.
When to use this code
Use D05.82 when the provider documents carcinoma in situ of the left breast and identifies it as an other specified type rather than ductal, lobular, or another coded subtype. Code only when the laterality and in situ status are clearly documented. Check documentation if the pathology wording is unclear.
Do not use for
Do not use this code for invasive breast cancer or for carcinoma in situ without left-breast laterality. If the record names a different in situ subtype, select the more specific code instead.
Coding tip
Match the exact pathology wording to laterality and in situ status before assigning D05.82.