Compliance Question of the Week – Respiratory

What codes that can be reported with +94729 (diffusing capacity, such as carbon monoxide, membrane)?

For the tests reported with 94680–94690 (oxygen uptake), can calculated test results be separately reported to Medicare for reimbursement in addition to the tests that are performed to derive the calculations?

Can pulmonary rehabilitation code G0424 be reported with codes G0237–G0239 (therapeutic procedures to increase strength or improve respiratory function)?

I am looking for guidance on reporting codes 94644 and 94645. Specifically, can 94645 be assigned with 94644?

Does Medicare cover chronic care management (CCM) services delivered by respiratory therapists?

When is negative pressure ventilation appropriate to use?

Does Medicare have any guidelines related to discharge criteria for patients who have had outpatient respiratory rehab services?

What codes should be used to report outpatient respiratory rehab services that respiratory therapists provide?

Can the following level II code be used for non-COPD patients as well as COPD patients?

What billing tips can you provider for code 94200 (maximum breathing capacity, maximal voluntary ventilation [MVV]), which we often use as a preoperative procedure?

I am looking for guidelines for use of the code below:

94640 Pressurized or nonpressurized inhalation treatment for acute airway obstruction for therapeutic purposes and/or for diagnostic purposes such as sputum induction with an aerosol generator, nebulizer, metered dose inhaler (MDI) or intermittent positive pressure breathing (IPPB) device

I looked up CPT® code 94762—pulse oximetry; continuous overnight determination—in Appendix B of the October 2018 OPPS to find the payment, and I happened to see a SI of Q3 for it. What does this mean?