There is a difference between 19303 and 19304 in medical coding.

There are cases and coding.

The appropriate code is 19303 (mastectomy; simple or complete).This includes nipple or skin-sparing mastectomy.There is no distinction between the two.There is more work involved in skin-sparing.The plastic surgeon performing the immediate reconstruction procedure does not usually involve wound closure.In addition to 19303 you can use 38900 and 38525-51 for deep axillary and sentinel node biopsies.

There are cases and coding.