E0601
Continuous Positive Airway Pressure (CPAP) Device
Code Description
HCPCS code E0601 is used to report a Continuous Positive Airway Pressure (CPAP) device. CPAP therapy delivers a constant flow of pressurized air through a mask to keep the airway open during sleep and is commonly prescribed for patients diagnosed with obstructive sleep apnea (OSA).
When to Use E0601
Common examples include:
Obstructive sleep apnea
Positive airway pressure therapy
Home CPAP treatment
Sleep medicine management
Long-term respiratory support
Physician-prescribed CPAP therapy
Initial CPAP equipment
Documentation Requirements
Documentation should include:
Medical necessity for CPAP therapy
Sleep study supporting the diagnosis
Ordering provider
Diagnosis of obstructive sleep apnea
Equipment order
Complete medical record
Examples
Example 1
A patient undergoes a sleep study that confirms moderate obstructive sleep apnea. The physician prescribes a home CPAP device to improve nighttime breathing. HCPCS code E0601 is reported.
Example 2
Following evaluation by a sleep medicine specialist, a patient is issued a CPAP machine for long-term treatment of obstructive sleep apnea. The durable medical equipment supplier bills HCPCS code E0601 for the device.
Common Billing Mistakes
Common billing mistakes include:
Billing without documentation of medical necessity
Missing a qualifying sleep study
Reporting the incorrect DME code
Duplicate billing for the same equipment
Missing required documentation for Medicare coverage
Related HCPCS Codes
E0562
Heated Humidifier
E0470
Respiratory Assist Device (BiPAP)
E1390
Oxygen Concentrator
FAQ
What does HCPCS code E0601 cover?
HCPCS code E0601 reports a Continuous Positive Airway Pressure (CPAP) device used to treat obstructive sleep apnea.
What condition is E0601 commonly used to treat?
It is primarily used to treat obstructive sleep apnea by maintaining an open airway during sleep.
Does E0601 include the CPAP machine?
Yes. The code represents the CPAP device itself. Related accessories and supplies are typically billed separately.
Is a sleep study required for E0601?
Most insurers, including Medicare, require documentation of a qualifying sleep study and medical necessity before covering a CPAP device.






Code Type
Respiratory Equipment
Equipment Type
Primary Use
CPAP Device
Treatment of Obstructive Sleep Apnea


