At baseline, a standardized pain or functional scale (provider can choose which one) must be used to measure pain prior to intervention. This can be done at the initial office visit or immediately before the injection.

Pain must be reassessed at follow-up using the same scale. In order to qualify for repeat injection documentation of at least 50% improvement from the baseline pain scale to the post treatment pain scale is required.

For services performed in the ASC (specialty 49), do not bill on one claim line using CPT modifier 50. For ASC facility claims (specialty 49), report the applicable procedure code on two separate lines, with one unit each and append HCPCS modifiers RT and LT to each line.