I have a question, we have a senior coder that has the idea that when the anaesthesiologist uses 99135 (controlled hypotension) during a procedure, which he clearly states in the record was used to minimize bleeding and improve surgical visualization, that she should code 458.9 Hypotension unspecified. To me this seems like coding open wound due to the surgical cut during an open appendectomy. Am I wrong or is my senior coder. This is the only doctor that we have doing this on a regular basis, but I don't like putting hypotension on a persons medical record especially when they may actually have hypertension.