Question: Can a medical anesthesiologist bill dental (CDT®) anesthesia codes for general anesthesia, or can they only bill the 00170 to the medical insurance? West Virginia Subscriber Answer: The correct dental code for this situation is D9223 (Deep sedation/general anesthesia - each 15 minute increment). However, if the insurance company will accept 00170 (Anesthesia for intraoral procedures, including biopsy; not otherwise specified) for a dental case, many coders recommend that route. The "00" anesthesia codes are the ones the payer is accustomed to seeing from an anesthesia practice.