CPT code 78264: Gastric emptying, stomach only2026 Medicare rate & RVUs

Reports scintigraphic assessment of how quickly a radiolabeled meal leaves the stomach, commonly when symptoms raise concern for delayed gastric emptying.

CMS RVU26DEffective Oct 1, 2026109 payment localities48.4K Medicare services in 2024

Medicare pays $289.92 for 78264 nationally in the office. Local office rates run $251.63–$406.80.

Medicare rate · 78264

Gastric emptying, stomach only

Office or facility?

Work RVUs
0.77
Total RVUs
8.68
Global days
XXX

National rate · 2026

$289.92

Office setting, before claim adjustments.

See every locality for 78264 →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.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 78264 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 78264 covers

A nuclear medicine team administers a radiolabeled meal and obtains serial images to track its passage out of the stomach. The study is commonly ordered for patients with nausea, vomiting, early satiety, or post-meal fullness when delayed gastric emptying is being evaluated. A nuclear medicine physician interprets the images; a technologist typically prepares the imaging equipment and acquires the study in a hospital or outpatient imaging department.

Report 78264 for the gastric-emptying assessment itself, rather than an examination that also evaluates transit through the small bowel or colon. The record should identify the meal or protocol used, document image acquisition, and include the physician’s interpretation of gastric emptying. CMS recognizes separately priced professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff portion, and an unmodified claim represents the global 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 78264 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$251.63 to $406.80

$251.63$329.22$406.80
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

78264 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$255.97Unavailable
Alaska$318.41Unavailable
Arizona$281.39Unavailable
Arkansas$251.63Unavailable
Atlanta, GA$294.78Unavailable
Austin, TX$304.78Unavailable
Bakersfield, CA$314.31Unavailable
Baltimore area, MD$310.11Unavailable
Beaumont, TX$266.20Unavailable
Brazoria, TX$287.11Unavailable

78264 rates by state

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

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.

$251.63

$360.42

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
78264 office rate range by state
State / territoryOffice rate rangeLocalities
AK$318.411
AL$255.971
AR$251.631
AZ$281.391
CA$314.04–$406.8029
CO$306.291
CT$311.181
DC$338.141
DE$286.611
FL$279.94–$305.233
GA$262.29–$294.782
GU$324.441
HI$324.441
IA$265.911
ID$267.441
IL$268.89–$299.474
IN$269.311
KS$263.351
KY$260.671
LA$259.76–$274.922
MA$303.56–$341.322
MD$293.06–$338.143
ME$267.89–$286.462
MI$267.58–$282.842
MN$295.381
MO$253.80–$277.393
MS$252.831
MT$289.911
NC$271.331
ND$288.131
NE$267.941
NH$300.251
NJ$315.27–$333.542
NM$268.841
NV$289.681
NY$275.97–$343.515
OH$267.221
OK$261.301
OR$287.98–$318.552
PA$268.34–$301.672
PR$292.751
RI$298.701
SC$269.621
SD$287.921
TN$264.761
TX$266.20–$304.788
UT$273.941
VA$284.60–$338.142
VI$292.751
VT$285.821
WA$303.38–$349.952
WI$276.871
WV$257.001
WY$289.141

How the 78264 rate is calculated

Each of 78264’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 · 78264

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.77

0.77 RVUs× 1.000 GPCI

Practice expense7.82

7.82 RVUs× 1.000 GPCI

Malpractice0.09

0.09 RVUs× 1.000 GPCI

Adjusted RVUs

8.6800

Conversion factor

$33.4009

Medicare rate

$289.92

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

Payment rules and modifiers for 78264

The CMS indicators that decide how 78264 is paid alongside other services.

CMS payment indicators · 78264

Gastric emptying, stomach only

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

78264 without 26 · national office

$289.92

Gastric emptying, stomach only

78264-26 · Professional component

$35.74

Pays only the interpretation and report.

When to use modifier 26

78264 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 78264

    Gastric emptying, stomach only0.77 wRVU

    $289.92

  • 78265

    Gastric emptying, with small bowel transit0.96 wRVU

    $347.70+$57.78

  • 78266

    GI transit imaging, small bowel and colon transit1.05 wRVU

    $394.80+$104.88

  • 78262

    Reflux imaging, gastroesophageal reflux0.66 wRVU

    $217.44−$72.48

How to choose

78265Gastric emptyingWith small bowel transit
78264 assesses gastric emptying alone; 78265 includes assessment of small-bowel transit as well.
78266GI transit imagingSmall bowel and colon transit
78266 extends the transit assessment through the small bowel and colon, beyond the stomach-only focus of 78264.
78262Reflux imagingGastroesophageal reflux
78262 evaluates gastroesophageal reflux. Choose 78264 when the question is how quickly the stomach empties.

78264 billing questions

When should 78264 be chosen over 78265?

Use 78264 when the study assesses gastric emptying alone. Choose 78265 when the examination also evaluates small-bowel transit.

How should the professional and technical services be reported?

Append modifier 26 for the physician’s interpretation or modifier TC for the equipment and staff portion. Report the global service without either modifier.

What documentation supports this code?

Document the gastric-emptying protocol and meal, image acquisition, and the interpreting physician’s findings. The report should make clear that the examination evaluates stomach emptying rather than downstream transit.

Can this code be used when small-bowel or colon transit is also assessed?

Use the code that reflects the full study performed: 78265 includes small-bowel transit, and 78266 includes small-bowel and colon transit with gastric emptying.

Does 78264 represent a single image or the gastric-emptying examination?

It represents the gastric-emptying imaging study, which uses serial images to assess passage of the meal from the stomach.

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 78264PPRRVU2026_Oct_nonQPP.csv, line 9,293 (RVU26D)

Open CMS sourceHow we calculate rates

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