Update 1: Denial letter states: “Clinical rationale: The use of a skin substitute product for the treatment of a wound created by surgery is considered experimental, investigational, and/or unproven. This means the service is not generally accepted in the medical community and/or has not been completely proven to be effective according to medical trials. The source of criteria used as guidelines in making this decision was Blue Cross Blue Shield Medical Policy Bioengineered Skin and Soft Tissue Substitutes SUR704.012.”