CPT® Code 0479T

Fractional ablative laser fenestration of burn and traumatic scars for functional improvement; first 100 cm2 or part thereof, or 1% of body surface area of infants and children

Fractional ablative laser fenestration is a specialized medical procedure designed to improve the functional outcomes of patients suffering from burn and traumatic scars. These types of scars can lead to contractures, which are caused by adhesions and the binding of underlying tissue layers. This condition often results in reduced elasticity, limited range of motion, and various functional deficits that can significantly impact a patient's quality of life. The procedure utilizes a fractional ablative laser to create microscopic full-thickness wounds in the scar tissue. This process effectively eliminates damaged epithelial cells and reduces excessive collagen fibers, which are often responsible for the rigidity and appearance of the scar. As the body heals, thinner collagen bundles and granulation tissue form within these wounds, allowing the epidermis to regenerate in a manner that remodels the scar, resulting in a smoother appearance and improved functionality. Prior to the procedure, the area to be treated is anesthetized using either a topical cream or a local injection to minimize discomfort. The laser settings are tailored to each patient, with the treatment depth adjusted according to the thickness of the scar. The application of the laser is performed in a non-overlapping stamping pattern, creating narrow columns that ensure effective treatment. The laser's wavelength is specifically absorbed by the fluid present in the tissue, leading to vaporization and leaving a thin rim of coagulation around the treated areas. The CPT® Code 0479T is used to report the fractional ablative laser fenestration for the first 100 cm2 or part thereof, or for 1% of the body surface area in infants and children, while the subsequent code 0480T is designated for each additional 100 cm2 or 1% of body surface area, or part thereof.