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CPT code 00104: ECT anesthesia2026 Medicare rate & RVUs in Rhode Island

Reports anesthesia furnished for an electroconvulsive therapy session, distinct from the psychiatrist's ECT service and tied to the treatment encounter.

CMS RVU26DEffective Oct 1, 2026One payment locality113.5K Medicare services in 2024

CMS doesn’t publish a rate for 00104 in Rhode Island.

UnavailableOffice (non-facility)
UnavailableHospital or facility

Check a contract rate as a % of Medicare · 00104 nationwide

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

We’ll open 00104 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Rhode Island
  2. What 00104 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 00104 covers

Anesthesia for electroconvulsive therapy (ECT) supports the psychiatrist’s electrical treatment. An anesthesiologist or CRNA typically provides a brief general anesthetic and medication to limit muscle movement while the psychiatrist administers ECT, in an ECT treatment setting. The anesthesia claim represents the anesthesia practitioner’s service, separate from the psychiatrist’s ECT service.

Report 00104 for anesthesia furnished for ECT; 90870 represents the ECT treatment itself. The anesthesia and ECT records should identify the treatment session and link the anesthesia to it, while the anesthesia record supports the timing and the point at which the patient can safely be placed under postoperative care. This code has 4 base units, and Medicare payment is (base units + time units) multiplied by the locality-specific anesthesia conversion factor. Time is reported in minutes and converted to 15-minute units to one decimal place, beginning when the practitioner starts preparing the patient for anesthesia and ending when the practitioner is no longer in personal attendance and the patient can safely be placed under postoperative care.

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.

How Rhode Island compares for 00104

00104 in Rhode Island vs other payment areas
  1. Rhode Island · this pageUnavailable
  2. Los Angeles, CA · CaliforniaUnavailable
  3. Washington, DC area · District of ColumbiaUnavailable
  4. Miami, FL · FloridaUnavailable
  5. Chicago, IL · IllinoisUnavailable
  6. Manhattan, NY · New YorkUnavailable
  7. Alaska · AlaskaUnavailable

Other areas in Rhode Island first, then benchmark localities. Bars start at $0.

Every other payment area

00104 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama——
ArkansasArkansas——
ArizonaArizona——
Bakersfield, CACalifornia——
Chico, CACalifornia——
El Centro, CACalifornia——
Fresno, CACalifornia——
Hanford, CACalifornia——

00104 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
00104 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

See 00104 in every payment locality

How the 00104 rate is calculated

Each of 00104’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 · 00104

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense0.00

0.00 RVUs× 1.000 GPCI

Malpractice0.00

0.00 RVUs× 1.000 GPCI

Adjusted RVUs

0.0000

Conversion factor

$33.4009

Medicare rate

$0.00

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 00104

00104 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 · 00104

Which rate does Medicare pay?

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

POS 11 · non-facility rate · national

—

00104 isn’t priced in this setting.

Codes related to 00104

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

Codes related to 00104
CodeHow it relatesOffice range, Rhode Island
Often billed with
90870Electroconvulsive therapyReports the ECT treatment itself; 00104 represents the anesthesia service for that session.$186.45

How 00104 has changed in Rhode Island

00104 · Office / nonfacility

Rate unavailable

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release

  1. January 1, 2014

    RVU14A

    No ratechanged toNo rate

    Held through RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D, RVU22A, RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D, RVU26A, RVU26B, RVU26C, RVU26D.

  2. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01UnavailableUnavailableRVU26D
2026-07-01UnavailableUnavailableRVU26C
2026-04-01UnavailableUnavailableRVU26B
2026-01-01UnavailableUnavailableRVU26A
2025-10-01UnavailableUnavailableRVU25D
2025-07-01UnavailableUnavailableRVU25C
2025-04-01UnavailableUnavailableRVU25B
2025-01-01UnavailableUnavailableRVU25A
2024-10-01UnavailableUnavailableRVU24D
2024-07-01UnavailableUnavailableRVU24C
2024-04-01UnavailableUnavailableRVU24B
2024-03-09UnavailableUnavailableRVU24AR
2024-01-01UnavailableUnavailableRVU24A
2023-10-01UnavailableUnavailableRVU23D
2023-07-01UnavailableUnavailableRVU23C
2023-04-01UnavailableUnavailableRVU23B
2023-01-01UnavailableUnavailableRVU23A
2022-10-01UnavailableUnavailableRVU22D
2022-07-01UnavailableUnavailableRVU22C
2022-04-01UnavailableUnavailableRVU22B
2022-01-01UnavailableUnavailableRVU22A
2021-10-01UnavailableUnavailableRVU21D
2021-07-01UnavailableUnavailableRVU21C
2021-04-01UnavailableUnavailableRVU21B
2021-01-01UnavailableUnavailableRVU21A
2020-10-01UnavailableUnavailableRVU20D
2020-07-01UnavailableUnavailableRVU20C
2020-04-01UnavailableUnavailableRVU20B
2020-01-01UnavailableUnavailableRVU20A
2019-10-01UnavailableUnavailableRVU19D
2019-07-01UnavailableUnavailableRVU19C
2019-04-01UnavailableUnavailableRVU19B
2019-01-01UnavailableUnavailableRVU19A
2018-10-01UnavailableUnavailableRVU18D
2018-07-01UnavailableUnavailableRVU18C
2018-04-01UnavailableUnavailableRVU18B
2018-01-01UnavailableUnavailableRVU18AR1
2017-10-01UnavailableUnavailableRVU17D
2017-07-01UnavailableUnavailableRVU17C
2017-04-01UnavailableUnavailableRVU17B
2017-01-01UnavailableUnavailableRVU17A
2016-10-01UnavailableUnavailableRVU16D
2016-07-01UnavailableUnavailableRVU16C
2016-04-01UnavailableUnavailableRVU16B
2016-01-01UnavailableUnavailableRVU16A
2015-10-01UnavailableUnavailableRVU15D
2015-07-01UnavailableUnavailableRVU15C
2015-04-01UnavailableUnavailableRVU15B
2015-01-01UnavailableUnavailableRVU15A
2014-10-01UnavailableUnavailableRVU14D
2014-07-01UnavailableUnavailableRVU14C
2014-04-01UnavailableUnavailableRVU14B
2014-01-01UnavailableUnavailableRVU14A
2013-10-01Rate data unavailableRate data unavailableRVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 00104 for an earlier date of service

Where the Rhode Island rate applies

Rhode Island is a Medicare payment area, not a city. Our Census mapping connects it to 36 cities and communities in Rhode Island. Some span more than one payment area; confirm with the service ZIP.

  • Ashaway
  • Bradford
  • Carolina
  • Central Falls
  • Charlestown
  • Chepachet
  • Clayville
  • Cranston

Browse all communities in Rhode Island

00104 billing questions

How is 00104 different from 90870?

00104 represents the anesthesia service for an ECT session. Code 90870 represents the ECT treatment itself.

Does 00104 include the psychiatrist’s ECT service?

No. The anesthesia practitioner reports 00104, while the psychiatrist’s ECT service is represented separately by 90870.

How does Medicare calculate units for 00104?

The code has 4 base units. Medicare adds time units, calculated from anesthesia minutes in 15-minute units to one decimal place.

What should the records show?

The ECT and anesthesia records should identify the treatment session and link the anesthesia to it. The anesthesia record should support the time from preparation through the point when the practitioner is no longer in personal attendance and the patient can safely be placed under postoperative care.

When would an unlisted anesthesia code be considered instead?

Code 01999 is for anesthesia services without a specific listed anesthesia code that describes the procedure. ECT has the specific anesthesia code 00104.

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

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