Final answer:
The correct modifier for a bilateral carpal tunnel release surgery on both the right and left median nerves is typically the bilateral modifier, such as modifier -50 in the CPT coding system.
Step-by-step explanation:
If a doctor performed a carpal tunnel release on both the right and left median nerves during the same operative session, the correct modifier to use would typically be the bilateral modifier. In the coding system used by medical professionals, this modifier indicates that a procedure was performed on both sides of the body. For instance, in the Current Procedural Terminology (CPT) codes used in the United States, modifier -50 denotes a bilateral procedure. It is important to use the correct modifier to ensure that the procedure is billed correctly and to avoid denial of insurance coverage for the procedure performed.