Compliance Question of the Week – Respiratory

My question relates to the answer to last week’s question about assigning modifier 52 to the code for an incomplete polysomnography (PSG) with CPAP titration. To use this modifier, is there a time requirement for the CPAP?

Would modifier 52 be appropriate when the physician orders polysomnography with CPAP titration, and during the phase of the test using the CPAP, the patient is physically unable to complete this portion of the test (e.g., adverse event)?

How should a split-night study be coded? Can the diagnostic portion and titration portion of a single study be billed separately?

What code is used for home-ventilation management services?

To follow-up on last week’s Q&A re: billing vent management in the ED, how is this billed if provided in skilled nursing facilities (SNFs)?

How should vent management in the ED be billed?

Does Medicare have a frequency limit on use of code 94750—pulmonary compliance study (e.g., plethysmography, volume and pressure measurements)?

Can code 94726 be reported with code 94727?

Are G0436 and G0437 the correct HCPCS level II codes to use for counseling to prevent tobacco use?

Can code 94200 (maximum breathing capacity, maximal voluntary ventilation) be billed with any other?

Is physician office-based spirometry covered by Medicare?

Is it appropriate to charge 94150 for ventilator weans? If not, what should be charged?