Otolaryngology Coding Alert

Our experts explain 95805-95807 versus 95808-95811

When your allergist sends a patient for sleep study testing, you should know the difference between polysomnography and sleep studies to ensure your practice doesn't receive denials or reduced reimbursement. Learning what each type of test involves will help you choose the correct code each time. Medicare Won't Cover -Unattended- Sleep Studies Sleep studies (95805-95807) and polysomnography (95808-95811) are similar tests that your allergist may recommend for patients with conditions such as sleep apnea (780.5x). Polysomnography tests require sleep staging, says Lisa Center, CPC, coder for Mt. Carmel Regional Medical Center in Pittsburg, Kan. Sleep studies do not require sleep staging and the patient may even be awake for these tests (as in MSLT). Therefore, if staging doesn't occur, you need to report a sleep study code, rather than a polysomnography code.

You have three codes to choose from when reporting sleep studies:

1. Use code 95805 (Multiple sleep latency or maintenance of wakefulness testing, recording, analysis and interpretation of physiological measurements of sleep during multiple trials to assess sleepiness) to measure daytime sleepiness in one of two ways.

In MSLT, the patient is encouraged to sleep. Typically, the technologist records the time that it takes for a patient to fall asleep during the course of four to five 20-minute nap sessions with two-hour intervals between each nap session. The test usually takes place in a lab setting, and the technologist monitors the patient for at least seven hours.

In MWT, the patient must perform low-demand activities at different intervals throughout the day, and she should try to resist sleep. The allergist then interprets the study and reports the results.

2. Report 95806 (Sleep study, simultaneous recording of ventilation, respiratory effort, ECG or heart rate, and oxygen saturation, unattended by a technologist) for unattended sleep studies. The type of sleep study for which you should use 95806 typically takes place in the patient's home with use of a portable recording device.

Even though the test is unattended, there is monitoring of the patient's cardiorespiratory function and oxygen saturation. Your physician would then interpret the results of the monitoring.

Beware: Even though there is a CPT code for unattended tests, don't expect to get paid when you report 95806, says Carol Pohlig, BSN, RN, CPC, senior coding and education specialist at the University of Pennsylvania department of medicine in Philadelphia. Medicare carriers and most other payers won't pay for tests that physicians don't attend.

3. The final sleep study code is 95807. As the code descriptor for 95807 (Sleep study, simultaneous recording of ventilation, respiratory effort, ECG or heart rate, and oxygen saturation, attended by a technologist) states, a technologist attends these studies and monitors several parameters, including the [...]