I am so confused on how to convert a math problem. I work in the medical field so this is from an operative report. The doctor performed a debridement of a wound from the calf and ankle and it measured 23 x 12 and 17 x 10 cm. He also did this from the thigh and it measured 23 x14 and 5 x 10 cm. The problem is, to code this procedure they want it in square cm. I understand you can't convert cm to sq cm so what do I do? You're help is extremely appreciated!