ICD-10-CM · Chapter 2

D48..6 Neoplasm of uncertain behavior of breast

Non-billable header

← D48 — Neoplasm of uncertain behavior of other and unspecified sites Chapter 2: C00-D49

Includes

Neoplasm of uncertain behavior of connective tissue of breast
Cystosarcoma phyllodes

Excludes 1 (cannot be coded together)

neoplasm of uncertain behavior of skin of breast (D48.5)

Last reviewed: September 2026