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HCPCS G0453: Intraoperative monitoringMedicare rate & RVUs

Reports continuous neurophysiologic monitoring during surgery when the monitoring professional observes the patient from outside the operating room, including a remote location.

CMS RVU26DEffective Oct 1, 2026109 payment localities369K Medicare services in 2024

Medicare pays $27.39 for G0453 nationally in a facility.

Medicare rate · G0453

Intraoperative monitoring

Swap in your local Medicare rate.

Work RVUs
0.6
Total RVUs
0.82
Global days
XXX

National rate · 2026

$27.39

Facility setting, before claim adjustments.

See every locality for G0453 → · Billed by an NP, PA or therapist? →

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 10 sections
  1. Medicare rate
  2. What G0453 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What G0453 covers

G0453 covers real-time neurophysiologic monitoring during an operation when the monitoring professional is outside the operating room, such as at a remote workstation. The professional observes patient-specific signals during surgery and communicates clinically significant changes to the operating team. It is used for procedures in which ongoing monitoring can help the surgical team identify changes in neural function, including some spine and brain operations.

Report the service by patient and in 15-minute units, based on the time spent providing continuous monitoring. The record should identify the operation, monitoring professional, signals followed, monitoring start and stop times, significant signal changes, and communications with the surgical team. CMS assigns work, practice-expense, and malpractice relative value units to the service. The supplied CMS payment rules list no additional payment adjustments for this code.

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 G0453 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

G0453 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$25.95
Alaska*Unavailable$37.03
ArizonaUnavailable$26.97
ArkansasUnavailable$25.78
AtlantaUnavailable$27.88
AustinUnavailable$27.57
BakersfieldUnavailable$27.66
Baltimore/Surr. CntysUnavailable$28.52
BeaumontUnavailable$26.76
BrazoriaUnavailable$27.13

G0453 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
G0453 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the G0453 rate is calculated

Each of G0453’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 · G0453

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 0.60Practice expense 0.17Malpractice 0.05

0.8200 adjusted RVUs×$33.4009 conversion factor=$27.39

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for G0453

G0453 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 · G0453

Which rate does Medicare pay?

The POS code on the claim line (CMS-1500 box 24B).

Non-facility (office) rate · national

—

G0453 isn’t priced in this setting.

G0453 compared with similar codes

Compare codes

G0453 vs 95940 vs 95941 vs 95938: national Medicare rates

Swap in your local Medicare rate.

  • G0453
    Intraoperative monitoring · 0.6 wRVU
    —
  • 95940
    Intraoperative monitoring · 0.6 wRVU
    —
  • 95941
    · 0 wRVU
    —
  • 95938
    Sensory evoked potentials · 0.84 wRVU
    $400.14

How to choose

95940Intraoperative monitoring
Use G0453 when continuous monitoring is performed outside the operating room; 95940 describes monitoring performed in the operating room.
95941Ionm remote/>1 pt or per hr
Both describe continuous monitoring from outside the operating room. G0453 is reported in 15-minute units, while 95941 uses an hourly unit.
95938Sensory evoked potentials
95938 reports somatosensory evoked-potential testing; G0453 reports ongoing neurophysiologic monitoring during the operation.

Codes related to G0453

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

Codes related to G0453
CodeHow it relatesNational office range
Used instead
95940Intraoperative monitoringContinuous intraoperative monitoring performed inside the operating room.No office rate
95941Ionm remote/>1 pt or per hrRemote continuous intraoperative monitoring represented with an hourly unit.No office rate
Often billed with
95938Sensory evoked potentialsSomatosensory evoked-potential testing may be part of the monitoring approach during surgery.$346.64–$564.97
95939Motor evoked potentialsMotor-evoked-potential testing may be used alongside continuous monitoring during surgery.$514.71–$820.79

G0453 billing questions

When should G0453 be chosen instead of 95940?

G0453 is for continuous monitoring performed from outside the operating room, including remotely. Code 95940 describes monitoring performed in the operating room.

How are units counted?

The code is reported per patient in 15-minute units. Document the monitoring interval with start and stop times.

What documentation supports G0453?

Document the surgical procedure, the signals monitored, the monitoring professional and monitoring times. Record important signal changes and communications to the operating team.

Is G0453 the same as an evoked-potential test?

No. G0453 represents continuous monitoring during surgery; codes such as 95938 identify specific evoked-potential testing.

How does G0453 differ from 95941?

Both concern continuous monitoring from outside the operating room, but G0453 is reported per 15 minutes and 95941 uses an hourly unit.

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
RVUs for G0453PPRRVU2026_Oct_nonQPP.csv, line 15,273 (RVU26D)

Open CMS sourceHow we calculate rates

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