Clinical Context
A typical patient is an adult with a chronic, non-healing diabetic foot ulcer or other complex cutaneous wound that requires a biologic wound matrix for soft tissue regeneration. The patient commonly presents to a wound care clinic or outpatient surgery center after failed conservative therapy (offloading, debridement, topical agents) and may have comorbid diabetes mellitus, peripheral vascular disease, or prior local infection. The clinical workflow begins with evaluation by a wound care specialist (podiatry, plastic surgery, or wound care medicine): assessment of wound size, depth, perfusion, and infection status; sharp or surgical debridement of necrotic tissue; optimization of glycemic control and vascular status; and, when appropriate, application of an allogeneic placental-derived product such as Interfyl (Q4171, Interfyl, 1 mg). The product is applied to the prepared wound bed under sterile technique, secured with appropriate secondary dressings, and the patient is scheduled for serial dressing changes and follow-up visits to monitor integration, re-epithelialization, and signs of complication. Typical sites of service are outpatient wound care clinics, ambulatory surgical centers, or hospital outpatient departments. Common payors include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare.