Billing code 94660: CPAP managementMedicare rate & RVUs

Medicare pays $69.14 for 94660 nationally in the office and $32.40 in a hospital or facility. Local office rates run $62.19–$89.68.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 94660 covers

This service covers a clinician’s work to begin or manage continuous positive airway pressure (CPAP) therapy. It is commonly provided by pulmonary or sleep-medicine clinicians for patients with obstructive sleep apnea, in an office or facility setting. The service concerns the patient’s CPAP treatment, such as getting therapy started and addressing its use; it is distinct from supplying or renting the CPAP equipment.

Report 94660 when the documented encounter includes CPAP initiation or management, not merely a discussion of a planned treatment or a note that the patient already uses CPAP. Documentation should identify the clinical reason for therapy and the work performed, such as device or interface setup, changes made, patient instruction, or response when applicable. CMS values practice expense differently for office and facility settings, so the place of service affects the payment valuation. The code has no add-on designation in the supplied CMS facts.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where 94660 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

94660 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 94660 rate is calculated

Each of 94660’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 94660

94660 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

94660 compared with similar codes

How to choose

95811Sleep study

Use 95811 for an attended sleep study that includes sleep monitoring and CPAP titration. Use 94660 for CPAP initiation or management outside that sleep-study service.

95810Sleep study

95810 is diagnostic polysomnography without CPAP titration. It describes the sleep study, while 94660 describes CPAP initiation or management.

94664Inhaler training

94664 is for demonstrating or evaluating use of aerosol devices such as inhalers or nebulizers. It is not the code for CPAP setup or management.

Codes related to 94660

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates