After debriding the initial 20 cm2 at the same encounter, the provider excises devitalized (dead) tissue from an open wound. He may use a variety of techniques that include sharp debridement with scissors, forceps, or a scalpel (a surgical knife), or he may use a high pressure waterjet, with or without suction. The excision can include the deep layer of skin or the outer layer; blood clots or other debris that has escaped from the blood vessels and been deposited in the wound; or biofilm, microorganisms that adhere to the exposed tissues of the wound.
Use this code for each additional 20 cm2 or part thereof of total wound surface area. Treatment may include topical application of medicine or materials, wound assessment and whirlpool, when performed, and instructions for ongoing care.
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