What is cpt code for mastectomy for gynecomastia?

The CPT code for a mastectomy performed for gynecomastia is typically 19300, which refers to "Mastectomy, partial." If the procedure involves removal of breast tissue and is more extensive, it may be coded as 19303 for "Mastectomy, total." It's important to consult the latest coding guidelines or a medical billing professional for accurate coding based on the specific procedure performed.