Question: Our ED physician treated a 14-year-old patient who had a second-degree burn on the palm of his left hand caused by grabbing a hot fire poker. The physician debrided and dressed the blistered areas. How should we code this? Connecticut Subscriber Answer: Because the physician documented debriding and dressing second-degree burns with blistering, which typically involves tissue below the dermis, the appropriate procedure code would probably be 16020 (Dressings and/or debridement of partial-thickness burns, initial or subsequent; small (less than 5% total body surface area)). If the treated area is larger than that, you may choose a different code from the same code family. Don’t forget: You will typically bill a separate E/M code if the physician documents assessing more than just the burn. The service includes the E/M necessary to assess the problem and determine it needs treatment. To describe the diagnosis that led to the procedure, you should add the following diagnosis codes: For ICD-10-CM sequencing purposes, you should observe the note for T31, which states that the code “should be used as a supplementary code” when the site of the burn is specified.