HCPCS G0508: Critical care telehealthMedicare rate & RVUs in Illinois
G0508 reports an initial 60-minute critical-care consultation delivered by telehealth for a critically ill patient needing remote physician assessment and management.
CMS doesn’t publish an office rate for G0508 in Illinois.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What G0508 covers
A remote critical-care physician uses telehealth to assess and manage a critically ill or injured patient, often in an ICU or emergency department. The consultation may address acute problems such as respiratory failure or shock and coordinate treatment with the bedside team. The service is distinct from a routine video visit: the patient’s condition requires critical-care expertise and management.
Select G0508 for the initial 60-minute telehealth critical-care consultation, not merely because a patient is hospitalized or the clinician connects remotely. Documentation should establish the critical illness, the physician’s assessment and management, the telehealth encounter, and the time attributable to the service. CMS fee-schedule data assign work, practice expense, and malpractice relative values to the code. G0509 identifies the related subsequent 50-minute telehealth critical-care service.
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 G0508 pays more and less in Illinois
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Chicago | Unavailable | $201.41 |
| East St. Louis | Unavailable | $193.77 |
| Rest Of Illinois | Unavailable | $188.08 |
| Suburban Chicago | Unavailable | $195.98 |
How the G0508 rate is calculated
Each of G0508’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.
How the rate is built · G0508
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 4.00Practice expense 1.17Malpractice 0.36
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for G0508
G0508 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.
Place of service · G0508
Which rate does Medicare pay?
The POS code on the claim line (CMS-1500 box 24B).
Non-facility (office) rate · national
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G0508 isn’t priced in this setting.
G0508 compared with similar codes
Compare codes
G0508 vs G0509 vs 99291 vs 99292: national Medicare rates
Swap in your local Medicare rate.
How to choose
- G0509Critical care consult
- G0508 is the initial 60-minute telehealth critical-care consultation; G0509 describes a subsequent 50-minute service.
- 99291Critical care
- 99291 is the conventional critical-care service code. G0508 identifies the critical-care consultation delivered by telehealth.
- 99292Critical care
- 99292 represents additional time in the conventional critical-care code family, rather than the telehealth consultation represented by G0508.
G0508 billing questions
When should G0508 be chosen over G0509?
G0508 describes the initial 60-minute telehealth critical-care consultation. G0509 is the related subsequent service with a 50-minute time description.
Can G0508 be used for any video consultation with a hospitalized patient?
No. The encounter must involve critical-care assessment and management for a critically ill or injured patient, rather than a routine inpatient video visit.
What should the note support?
Document the patient’s critical condition, the physician’s telehealth assessment and management, and the time spent on the critical-care consultation.
Should 99291 also be reported for the same telehealth work?
99291 is the conventional critical-care service code, not the telehealth consultation code. Do not report both simply to represent the same 60 minutes of work.
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
Show the CMS file lines behind this rate
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