How to Bill for Bilateral Services

If providing a service bilaterally during an outpatient therapy visit, what modifier must be appended to the CPT code on the claim form? What is an example of a bilateral procedure provided by PT or OT? Using the answer to the above question, can you provide an example? If you provide a service bilaterally, do you bill 2 units for that CPT code on the claim form? If you provide a supervised modality bilaterally to an outpatient, would you use the modifier to indicate it was provided bilaterally? If you provide a constant attendance modality bilaterally to an outpatient, would you use the modifier to indicate it was provided bilaterally? If you provide interventions described by CPT codes 97110-97140, 97530-97546, and 97750-97763 bilaterally, to an outpatient, would you use the modifier to indicate it was provided bilaterally?

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