Per the CPT guidelines and CMS coding protocols, providers should pay close attention when billing 94640 – [pressurized or non-pressurized inhalation treatment] since updates recently have been made. The revision is to clarify the code is to be bundled because it represents both diagnostic and therapeutic services. CPT code 94640 should not be billed with the following codes:
- 94060 – Bronchodilator responsiveness
- 94070 – Bronchospasm provocation evaluation
- 94400 – Breathing response to carbon dioxide