ICD-10 Code D24.2 – Benign neoplasm of left breast (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D24.2 – Benign neoplasm of left breast
What it is
D24.2 identifies a noncancerous tumor in the left breast. Use it when documentation states a benign breast neoplasm or a benign mass confirmed as arising in the left breast.
Clinical signs
Findings may include a palpable breast lump, localized fullness, or an imaging-detected mass. Clinical features vary; refer to documentation and pathology or imaging reports when available.
When to use this code
Use D24.2 when the provider documents a benign neoplasm specifically in the left breast. It is appropriate for confirmed benign tumors, including cases described by pathology or clear clinical assessment. If the record only says “breast mass” or the laterality is unclear, check documentation before coding.
Do not use for
Do not use this code for malignant breast neoplasms, unspecified breast side, or lesions documented as cysts, inflammation, or other non-neoplastic findings. Check documentation if the diagnosis is uncertain.
Coding tip
Verify both benign nature and left-sided location in the provider note before assigning D24.2.