Sleep Medicine Billing Services

Sleep medicine billing depends on matching the right test to the right patient. A sleep lab study, a home sleep apnea test, and a follow-up CPAP visit each follow different coding and payer rules. Many payers require prior authorization for studies, and some expect a home test first for patients with a likely case of obstructive sleep apnea.

Sleep practices also split work between a physician who reads the study and a facility that runs it. Billing the technical and professional parts correctly matters for both. Westmont Revenue Partners connects sleep medicine practices with vetted billing experts who understand testing, device follow-up, and payer documentation rules.

Who this is for

• Board-certified sleep physicians
• Pulmonologists, neurologists, and ENT physicians with a sleep practice
• Independent sleep centers and hospital-based sleep labs
• Practices offering home sleep apnea testing
• Pediatric sleep clinics

What gets billed

• New patient sleep consultations
• Follow-up visits for sleep apnea and insomnia
• In-lab attended sleep studies
• Split-night studies with CPAP titration
• Home sleep apnea testing
• Daytime nap testing for sleepiness disorders
• CPAP and mask set-up and follow-up
• Interpretation and report of sleep studies
• Telehealth follow-up visits
• Pediatric sleep studies

Commonly billed codes

Code	Type	What it covers
99204	CPT	New patient visit of moderate complexity
99214	CPT	Established patient visit of moderate complexity
95810	CPT	Attended in-lab sleep study with sleep staging, patients age 6 and older
95811	CPT	In-lab sleep study that also includes CPAP titration
95800	CPT	Unattended sleep study that measures heart rate, oxygen, and breathing with sleep time
95805	CPT	Daytime nap study that measures sleepiness or ability to stay awake
94660	CPT	CPAP initiation and management
G47.33	ICD-10-CM	Obstructive sleep apnea in an adult

Note

Codes are examples for orientation, not a complete list, and do not guarantee coverage or payment. Always check current code sets and payer policy.

Billing challenges in sleep medicine

Prior authorization for testing. Many payers require approval before an in-lab study. A sleep biller tracks which plans need it and which require proof that a home test was not suitable.

Choosing the right test. Payers may only cover a home test for adults with a high chance of sleep apnea and no major heart or lung disease. Experienced billers review the visit note to confirm the order fits payer rules.

Technical and professional splits. The lab bills for equipment and staff, and the physician bills for reading the study. Billers make sure each party uses the proper modifier and place of service.

Scoring and report requirements. Payers expect a signed interpretation with specific details. Missing details can lead to denials. Billers check reports before billing.

CPAP compliance rules. Many payers require proof of device use before continuing to pay for supplies. Practices that track download reports can support the supply provider and reduce disputes.

Repeat studies. A second study may be denied if the first was recent. Billers keep dates and clinical reasons ready for appeals.

Telehealth follow-up. Rules for virtual visits differ across payers and change over time. Billers confirm current policies before scheduling.

How Westmont can help

• We match your sleep practice with vetted billing experts experienced in sleep medicine and diagnostic testing.
• Matched experts can support end-to-end revenue cycle management, including authorization tracking.
• Denial management support targets test-type and repeat-study rejections.
• Credentialing and payer enrollment help is available for new physicians and sleep facilities.

Frequently asked questions

How is a home sleep test billed?

Home sleep apnea tests are billed with codes for unattended studies, and the device or service company may bill the technical part while the physician bills for interpretation. Many payers require an order and a visit note first. Confirm which codes each payer wants, since they differ by device type.

What is the difference between a diagnostic sleep study and a split-night study?

A diagnostic study records sleep to diagnose a problem. A split-night study starts as diagnostic and, if criteria are met, switches to CPAP titration the same night. Each has its own code. Payers may require specific documentation to show the split was appropriate.

Does insurance require prior authorization for sleep studies?

Many payers do, especially for in-lab studies. Some require a home test first for suitable patients. Requirements change often, so confirm with each plan before scheduling the patient. A sleep medicine billing company can keep a payer-by-payer guide current.

Can a physician bill for reading a sleep study the lab owns?

Yes. The physician can bill for the professional interpretation, using the right modifier, while the lab bills for the technical component. Each side needs clear agreements and documentation. Payers may deny if both bill the global code.

Why are CPAP claims denied?

Common reasons include missing face-to-face notes, no proof of a qualifying sleep test, and lack of use data. A sleep medicine biller works with the supplier and the clinic to confirm these items before the claim goes out.

Related billing services

• Sleep Study Centers
• Pulmonology
• Neurology
• Durable Medical Equipment
• Otolaryngology (ENT)