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CPT code 00797: Bariatric anesthesia, bariatric upper-abdominal procedure2026 Medicare rate & RVUs in Montana

Anesthesia for upper-abdominal bariatric operations such as gastric bypass or sleeve gastrectomy, reported by the anesthesia professional for the qualifying procedure.

CMS RVU26DEffective Oct 1, 2026One payment locality11.8K Medicare services in 2024

CMS doesn’t publish a rate for 00797 in Montana.

UnavailableOffice (non-facility)
UnavailableHospital or facility

Check a contract rate as a % of Medicare · 00797 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 00797 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Montana
  2. What 00797 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 00797 covers

This code covers anesthesia for intraperitoneal bariatric operations in the upper abdomen that reduce stomach capacity, including gastric bypass and sleeve gastrectomy. An anesthesiologist or CRNA reports the anesthesia service for the qualifying operation in a facility setting. The patient’s obesity alone does not make this the appropriate anesthesia code; the operation performed determines selection.

Choose this code for the bariatric operation rather than 00790, which covers other intraperitoneal upper-abdominal procedures; procedure-specific codes apply to partial hepatectomy, pancreatectomy, and liver transplantation. The operative report should identify the bariatric procedure, and the anesthesia record should document the practitioner’s service and anesthesia start and end times. Medicare payment uses 11 base units plus time units, multiplied by the locality-specific anesthesia conversion factor, which varies by locality. Report anesthesia time in minutes from when preparation begins until the practitioner is no longer in personal attendance and the patient can safely be placed under postoperative care; CMS converts it to 15-minute units to one decimal place.

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 Montana compares for 00797

00797 in Montana vs other payment areas
  1. Montana · 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 Montana first, then benchmark localities. Bars start at $0.

Every other payment area

00797 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama——
ArkansasArkansas——
ArizonaArizona——
Bakersfield, CACalifornia——
Chico, CACalifornia——
El Centro, CACalifornia——
Fresno, CACalifornia——
Hanford, CACalifornia——

00797 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
00797 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 00797 in every payment locality

How the 00797 rate is calculated

Each of 00797’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 · 00797

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 00797

00797 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 · 00797

Which rate does Medicare pay?

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

POS 11 · non-facility rate · national

—

00797 isn’t priced in this setting.

Codes related to 00797

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

Codes related to 00797
CodeHow it relatesOffice range, Montana
Often billed with
43644Gastric bypass, roux-en-Y, laparoscopicLaparoscopic gastric bypass surgery commonly paired with anesthesia for a qualifying bariatric operation.No office rate
43775Sleeve gastrectomy, laparoscopic approachLaparoscopic sleeve gastrectomy commonly paired with anesthesia for a qualifying bariatric operation.No office rate
Same family
00790Upper abdominal anesthesia, intraperitoneal proceduresGeneral intraperitoneal upper-abdominal anesthesia for procedures outside this bariatric category.No office rate
00792Liver resection anesthesia, partial hepatectomyAnesthesia code for partial hepatectomy in the upper abdomen.No office rate
00794Pancreatectomy anesthesia, upper abdominal procedureAnesthesia code for pancreatectomy in the upper abdomen.No office rate
00796Liver transplant anesthesia, recipient transplant procedureAnesthesia code for liver transplantation.No office rate

How 00797 has changed in Montana

00797 · 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
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
2013-10-01UnavailableUnavailableRVU13D
2013-07-01UnavailableUnavailableRVU13C
2013-04-01UnavailableUnavailableRVU13B
2013-01-01UnavailableUnavailableRVU13AR

Price 00797 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

  • Absarokee
  • Acton
  • Alberton
  • Alder
  • Alzada
  • Amsterdam
  • Anaconda-Deer Lodge County
  • Antelope

Browse all communities in Montana

00797 billing questions

When should I choose 00797 instead of 00790?

Use 00797 for anesthesia for a qualifying bariatric operation in the upper abdomen, such as gastric bypass or sleeve gastrectomy. Use 00790 for other intraperitoneal upper-abdominal procedures covered by that code.

Does the surgeon’s procedure code replace 00797?

No. The surgeon reports the operative procedure, while the anesthesia professional reports 00797 for anesthesia for the qualifying bariatric operation.

Do both gastric bypass and sleeve gastrectomy qualify?

Yes. Anesthesia for qualifying upper-abdominal gastric bypass and sleeve gastrectomy procedures is reported with 00797.

What should the records show?

The operative report should identify the bariatric procedure performed. The anesthesia record should support the anesthesia service and document its start and end times.

How are time units calculated?

Record anesthesia time in minutes and convert it to units of 15 minutes, computed to one decimal place. Time starts when the anesthesia practitioner begins preparing the patient and ends when the practitioner is no longer in personal attendance and the patient can safely be placed under postoperative care.

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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