HCPCS 19357

Tissue expander placement in breast reconstruction, including subsequent expansion(s)

AI EXPLANATION: Breast reconstruction with a tissue expander is a surgical procedure to rebuild the shape and contour of a breast, typically following a mastectomy or other breast surgery. During the procedure, a surgeon places a temporary balloon-like expander under the skin and chest muscle. In subsequent outpatient appointments, small amounts of fluid are gradually added to the expander through a tiny valve, stretching the skin over time to create space for a permanent breast implant or tissue flap.