A sleep study (polysomnography) provides extensive information and changes treatment plan in many patients. Abnormality of sleep predisposes to development or progression of cardiovascular, cerebrovascular, pulmonary disorders and cognitive impairment.
Majority of the insurances require precertification for sleep studies. Some of the insurances have a check list and a patient needs to have multiple symptoms and signs in order to be approved for the study. Preexisting conditions such as CHF, pulmonary hypertension, cardiac arrhythmia, cognitive impairment provide additional indications for polysomnography.
A neurologist consult or a sleep medicine consult would be reasonable if a sleep disorder suspected and the referral for a sleep study needs to be made. A patient with a sleep disorder might present with the combination of the following symptoms: obesity, disruptive snoring, non restorative sleep, disturbed or restless sleep, excessive daytime sleepiness, choking or gasping during sleep, nocturia, frequent unexplained arousals
- The following disorders include polysomnography in diagnostic evaluation
and can be on an order form for a sleep study:
- G47.33 Obstructive sleep apnea
- G47.61 Periodic leg movement disorder
- G47.41 Narcolepsy
- G47.52 REM sleep behavior disorder
Insomnia alone is not an indication for a sleep study.