In simple words: This code covers the cost of a small, sterile gauze pad with sticky edges used to cover a wound. It's for the pad itself, not for putting it on.

This HCPCS code reports the supply of non-impregnated sterile gauze dressing used to cover open wounds, absorb exudate, and protect against infection.The dressing's pad size is 16 square inches or less, and it includes an adhesive border.The code covers the supply of the dressing itself, not its application. Multiple wounds require using the appropriate modifier (A1-A9) to indicate the number of wounds dressed.Modifiers LT (left side) and RT (right side) can be added for extremity wounds. Modifier AW (item furnished in conjunction with a surgical dressing) may also apply.For home use, the place of service should be indicated as the patient's residence (POS 12).

Example 1: A patient presents with a small laceration on their forearm. The physician cleans the wound and applies a sterile gauze dressing (A6219) to promote healing and prevent infection., A patient with a chronic venous ulcer requires a dressing change. The nurse applies several small gauze dressings (A6219, with modifier A3 to indicate 3 wounds treated) to the ulcerated area, absorbing exudate and protecting the wound., Following a minor surgical procedure, a sterile gauze dressing (A6219) is applied to the incision site before the patient is discharged home, with instructions for self-care and dressing changes.

Documentation should include the size and type of dressing used, the location and number of wounds treated (using modifiers as necessary), and the clinical indication for the dressing (e.g., wound care, infection prevention).

** The code only covers the supply of the dressing; separate codes would be used for application or other services.