HCPCS code G0237: Respiratory therapy, muscle strength or endurance2026 Medicare rate & RVUs

Medicare pays $12.69 for G0237 nationally in the office. Local office rates run $10.79–$18.00.

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

What G0237 covers

G0237 describes direct, one-on-one therapeutic work aimed at improving respiratory muscle strength or endurance. A respiratory therapist or other qualified practitioner may guide the patient through targeted breathing or muscle-training exercises in an outpatient setting, including during pulmonary rehabilitation. The service is distinct from general respiratory-function activities that do not focus on strengthening or increasing endurance of the respiratory muscles.

Report the service in 15-minute units, supported by documentation of the treatment provided, face-to-face one-on-one time, and the respiratory muscle goal addressed. The record should distinguish this focused training from other respiratory procedures furnished during the visit. CMS classifies G0237 as an incident-to service: it may be billed only when performed under physician supervision. The CMS fee schedule assigns practice-expense and malpractice relative value units, with no physician work relative value units.

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 G0237 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

G0237 rates by state

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

How the G0237 rate is calculated

Each of G0237’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 G0237

The CMS indicators that decide how G0237 is paid alongside other services.

G0237 compared with similar codes

How to choose

G0238Respiratory therapyIndividual, other therapeutic procedures

G0237 targets respiratory muscle strength or endurance. G0238 is used for other individual respiratory procedures.

G0239Respiratory therapyGroup, each 15 minutes

G0237 is one-on-one treatment; G0239 is for respiratory procedures furnished to two or more individuals as a group.

94625Pulmonary rehabWithout continuous ECG monitoring

94625 reports a pulmonary rehabilitation session. G0237 identifies focused one-on-one respiratory muscle strength or endurance training.

Codes related to G0237

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