Please tell me what code to use for a irrigation and debridement of rt breast wound with rt breast tissue biopsy. Also i&D of multiple sacrococoygeal /ischial ulcers 5 wounds measuring a total of 2245 sq cm.assuming that area of wound is calculated eg. 5cm x 2cm x3cm = 30sq cm. How do you code this is it first 20 sq cm and then each additional 20 sq cm, this seem like an awful lot of codes. Thanks for any help.