Collagen Patch

Question:

I would like to get your opinion on what A6023 documentation is needed for billing out collagen patches.  Should they be noting the sizes and changes of the wound at follow-up visits?

Answer:

Excellent question! CMS is very clear that documentation for the application of A6023 Collagen dressing, sterile, size more than 48 sq in, each requires a physician's signed order, details on the wound's type, location, size, drainage, and specifics about the dressing used (type, size, and frequency of change). The documentation must also demonstrate the medical necessity for the collagen dressing, which, for Medicare, requires the product to be listed on the Product Classification List (PCL) following a Coding Verification Review (CVR).

*This response is based on the best information available as of 12/18/25.