G8850 – Positive airway pressure therapy not prescribed, reason not given
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG8850
- Long description
- Positive airway pressure therapy not prescribed, reason not given
- Short description
- No pap prescribed
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
M5BSpecialist - psychiatry- Added
- January 1, 2012
- Last change
- January 1, 2013 – No change
Frequently asked questions
What is HCPCS code G8850?
G8850 is a HCPCS Level II code for positive airway pressure therapy not prescribed, reason not given.
Does Medicare cover G8850?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby G codes
- G8841 – Sleep apnea symptoms not assessed, reason not given
- G8842 – Apnea hypopnea index (ahi), respiratory disturbance index (rdi) or respiratory event index (rei) documented or measured within 2 months after initial evaluation for suspected obstructive sleep apnea
- G8843 – Documentation of reason(s) for not measuring an apnea hypopnea index (ahi), a respiratory disturbance index (rdi), or a respiratory event index (rei) within 2 months after initial evaluation for suspected obstructive sleep apnea (e.g., medical, neurological, or psychiatric disease that prohibits successful completion of a sleep study, patients for whom a sleep study would present a bigger risk than benefit or would pose an undue burden, dementia, patients previously diagnosed with osa and severity assessed by another provider, patients who decline ahi/rdi/rei measurement, patients who had a financial reason for not completing testing, test was ordered but not completed, patients decline because their insurance (payer) does not cover the expense)
- G8844 – Apnea hypopnea index (ahi), respiratory disturbance index (rdi), or respiratory event index (rei) not documented or measured within 2 months after initial evaluation for suspected obstructive sleep apnea, reason not given
- G8845 – Positive airway pressure therapy prescribed
- G8846 – Moderate or severe obstructive sleep apnea (apnea hypopnea index (ahi) or respiratory disturbance index (rdi) of 15 or greater)
- G8848 – Mild obstructive sleep apnea (apnea hypopnea index (ahi) or respiratory disturbance index (rdi) of less than 15)
- G8849 – Documentation of reason(s) for not prescribing positive airway pressure therapy (e.g., patient unable to tolerate, alternative therapies use, patient declined, financial, insurance coverage)
- G8851 – Adherence to therapy was assessed at least annually through an objective informatics system or through self-reporting (if objective reporting is not available, documented)
- G8852 – Positive airway pressure therapy was prescribed
- G8853 – Positive airway pressure therapy not prescribed
- G8854 – Documentation of reason(s) for not objectively reporting adherence to evidence-based therapy (e.g., patients who have been diagnosed with a terminal or advanced disease with an expected life span of less than 6 months, patients who decline therapy, patients who do not return for follow-up at least annually, patients unable to access/afford therapy, patient's insurance will not cover therapy)
- G8855 – Adherence to therapy was not assessed at least annually through an objective informatics system or through self-reporting (if objective reporting is not available), reason not given
- G8856 – Referral to a physician for an otologic evaluation performed
- G8857 – Patient is not eligible for the referral for otologic evaluation measure (e.g., patients who are already under the care of a physician for acute or chronic dizziness)
- G8858 – Referral to a physician for an otologic evaluation not performed, reason not given
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.