Final answer:
For coding skin grafts, information on the size and location of the defect, and the type of graft used are essential; the location of the donor site is not.
Step-by-step explanation:
To correctly code skin grafts, you need specific information; however, the location of the donor site is not necessary for the coding process. When documenting a skin graft procedure, the following details are crucial: the size of the defect, the type of graft used, and the location of the defect that receives the graft. These details are essential for accurate medical coding and billing for the procedure.