FeeBase
Log inGet started
Menu

HCPCS code A9555: Rubidium-82, per study dose, up to 60 mCi2026 Medicare rate & RVUs

Reports a rubidium-82 dose used for PET myocardial perfusion imaging, commonly during cardiac evaluation at rest and with stress.

CMS RVU26DEffective Oct 1, 2026109 payment localities339.7K Medicare services in 2024

Medicare rate · A9555

Rubidium-82, per study dose, up to 60 mCi

Office or facility?

Work RVUs
0
Total RVUs
0.00
Global days
XXX

National rate · 2026

—

Not priced in the facility setting.

See every locality for A9555 →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 A9555 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 A9555 covers

Rubidium-82 is an intravenous radiotracer used for PET myocardial perfusion imaging to assess blood flow to the heart muscle. Nuclear medicine and cardiology teams commonly use it during cardiac evaluation at rest and with pharmacologic stress. A9555 identifies the radiopharmaceutical dose used with the imaging study, rather than the PET imaging service itself.

A9555 represents one study dose of rubidium-82, up to 60 millicuries. Its physician fee schedule status is C, meaning the Medicare Administrative Contractor sets payment for each claim; CMS publishes no national payment. The HCPCS file establishes no payment value, and coverage is left to the Medicare contractor’s judgment. This is a HCPCS Level II radiopharmaceutical 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 A9555 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

A9555 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailableUnavailable
AlaskaUnavailableUnavailable
ArizonaUnavailableUnavailable
ArkansasUnavailableUnavailable
Atlanta, GAUnavailableUnavailable
Austin, TXUnavailableUnavailable
Bakersfield, CAUnavailableUnavailable
Baltimore area, MDUnavailableUnavailable
Beaumont, TXUnavailableUnavailable
Brazoria, TXUnavailableUnavailable

A9555 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
A9555 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 A9555 rate is calculated

Each of A9555’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 · A9555

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 A9555

A9555 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 · A9555

Which rate does Medicare pay?

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

POS 11 · non-facility rate · national

—

A9555 isn’t priced in this setting.

A9555 compared with similar codes

Compare codes · National

5 codes, side by side

Office or facility?

  • A9555

    Rubidium-82, per study dose, up to 60 mCi0 wRVU

    Not priced

  • 78491

    Myocardial PET, single study0 wRVU

    Not priced

  • 78492

    PET perfusion, multiple studies0 wRVU

    Not priced

  • A9500

    Tc-99m sestamibi, per study dose0 wRVU

    Not priced

  • A9502

    Tetrofosmin, per study dose0 wRVU

    Not priced

How to choose

78491Myocardial PETSingle study
78491 reports cardiac PET myocardial perfusion imaging for a single study. A9555 identifies the rubidium-82 radiopharmaceutical, not the imaging service.
78492PET perfusionMultiple studies
78492 reports cardiac PET myocardial perfusion imaging for multiple studies, such as rest and stress. A9555 identifies the radiopharmaceutical used for the study.
A9500Tc-99m sestamibiPer study dose
A9500 identifies technetium-99m sestamibi, generally used for SPECT myocardial perfusion imaging; A9555 identifies rubidium-82 used for PET.
A9502TetrofosminPer study dose
A9502 identifies technetium-99m tetrofosmin, generally used for SPECT myocardial perfusion imaging; A9555 identifies rubidium-82 used for PET.

Codes related to A9555

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

Codes related to A9555
CodeHow it relatesNational office range
Often billed with
78491Myocardial PET, single studyCardiac PET myocardial perfusion imaging for a single study.No office rate
78492PET perfusion, multiple studiesCardiac PET myocardial perfusion imaging for multiple studies, commonly rest and stress.No office rate
Used instead
A9500Tc-99m sestamibi, per study doseTechnetium-99m sestamibi is a myocardial perfusion tracer commonly used for SPECT rather than PET.No office rate
A9502Tetrofosmin, per study doseTechnetium-99m tetrofosmin is another myocardial perfusion tracer commonly used for SPECT.No office rate

A9555 billing questions

What does one unit of A9555 represent?

One unit represents a study dose of rubidium-82 up to 60 millicuries.

Does A9555 identify the cardiac PET scan?

No. A9555 identifies the rubidium-82 radiopharmaceutical dose; cardiac PET imaging codes describe the imaging service.

How do A9555 and A9500 differ?

A9555 identifies rubidium-82 used for PET myocardial perfusion imaging. A9500 identifies technetium-99m sestamibi, commonly used for SPECT myocardial perfusion imaging.

Which cardiac PET codes are associated with A9555?

Cardiac PET myocardial perfusion imaging codes include 78491 for a single study and 78492 for multiple studies.

How does Medicare price and cover A9555?

The physician fee schedule assigns status C, so the Medicare Administrative Contractor sets payment for each claim. Coverage is left to the contractor’s judgment.

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

Did this answer your question about what A9555 pays?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put A9555 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist