CPT® Code 15013

1. Indications

The preparation of a skin cell suspension autograft (SCSA) is indicated for the treatment of partial-thickness wounds. These wounds may arise from various conditions, including but not limited to surgical excisions, traumatic injuries, or chronic ulcers that require skin coverage to promote healing and restore skin integrity.

• Partial-thickness wounds These wounds involve the epidermis and part of the dermis, necessitating coverage to facilitate healing.
• Surgical excisions Wounds resulting from surgical procedures that require skin grafting for optimal recovery.
• Traumatic injuries Skin loss due to accidents or injuries that compromise the integrity of the skin.
• Chronic ulcers Non-healing wounds that may benefit from skin grafting to enhance healing and prevent infection.

2. Procedure

The procedure for preparing a skin cell suspension autograft involves several detailed steps to ensure the effective harvesting and processing of skin cells.

• Step 1: Harvesting the skin The first step involves the careful harvesting of a thin piece of skin, typically measuring between 0.006 to 0.008 inches in thickness. This harvested skin is then cut into smaller strips, usually sized at 2 cm by 3 cm, to facilitate further processing.
• Step 2: Enzymatic incubation The cut strips of skin are placed into an SCSA device where they undergo enzymatic incubation for a period of 15 to 20 minutes. This enzymatic treatment is crucial as it helps to break down the skin tissue, making it easier to separate the individual skin cells.
• Step 3: Assessment of skin breakdown After the incubation period, the physician assesses the skin to determine if the cells can be easily separated. If the skin has not been sufficiently broken down, it is returned to the enzymatic processing stage for additional treatment.
• Step 4: Rinsing and scraping Once the skin cells are adequately separated, the tissue is rinsed with a buffer solution and placed dermal side down on a mechanical scraping tray. The physician then disaggregates the cells by vigorously scraping the skin from different orientations to ensure complete removal of the cells.
• Step 5: Collection of cells After scraping, the collected cells are rinsed to capture any remaining cells. A syringe is then used to draw up the SCSA cells from the collection tray, preparing them for the final filtration step.
• Step 6: Filtration The final step involves filtering the harvested skin cells through a cell strainer to ensure that only viable cells are prepared for application to the wound site.

3. Post-Procedure

Post-procedure care following the preparation of a skin cell suspension autograft involves monitoring the wound site for signs of healing and potential complications. The physician may provide specific instructions regarding wound care, including keeping the area clean and protected. Patients are typically advised on how to manage any discomfort and when to follow up for further evaluation. The expected recovery time may vary depending on the size and location of the wound, as well as the individual patient's healing response. Regular follow-up appointments may be necessary to assess the integration of the graft and overall healing progress.