Even if codes remain the same from one version of CPT to the next, it's important to check whether any base values have changed. Anesthesia codes 00797 (Anesthesia for intraperi-toneal procedures in upper abdomen including laparoscopy; gastric restrictive procedure for morbid obesity) and +01968 (Anesthesia for cesarean delivery following neuraxial labor analgesia/anesthesia [list separately in addition to code for primary procedure performed]) were two new codes assigned temporary unit values last year. Their final values of 7 and 2 units, respectively, were published as part of the final 2003 Medicare Fee Schedule.
Another code of interest is 00540 (Anesthesia for thoracotomy procedures involving lungs, pleura, diaphragm, and mediastinum [including surgical thoracoscopy]; not otherwise specified). Its unit value has dropped for 2003, from 13 units to 12.
Coders previously reported one lung ventilation with 00540, but CPT 2003 added a new code specifically for this 00541 ( utilizing one lung ventilation). Code 00540's base value was adjusted to reflect this change because it will no longer be used to report one lung ventilation.