Question: Encounter notes indicate that the surgeon performed tenotomy of a patient’s hip. What CPT® code should I choose for this surgery? Codify Subscriber Answer: There’s really no way to answer this question without gleaning more info from the operative report. Best bet: Go back to the op report and look into the specifics of the tenotomy. Then you’ll choose from the following tenotomy codes: One more thing: Once you’ve chosen a tenotomy code, be sure to append modifier LT (Left side) or RT (Right side) to indicate laterality.