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HCPCS code A9505: Thallium-201, per millicurie2026 Medicare rate & RVUs

Reports thallium-201 supplied for diagnostic nuclear imaging, most commonly myocardial perfusion studies, with each unit representing one millicurie.

CMS RVU26DEffective Oct 1, 2026109 payment localities6K Medicare services in 2024

Medicare rate · A9505

Thallium-201, per millicurie

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 A9505 →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 A9505 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 A9505 covers

Thallium-201 thallous chloride is a diagnostic radiopharmaceutical given intravenously for nuclear medicine imaging. It is used most often for myocardial perfusion studies to assess blood flow to the heart muscle, including stress and rest imaging. Nuclear medicine departments, imaging facilities, and practitioners billing for the radiopharmaceutical may report this HCPCS Level II code alongside the applicable imaging service.

The physician fee schedule status is C, meaning Medicare publishes no national payment and the Medicare Administrative Contractor sets payment for each claim. The HCPCS pricing method is other contractor pricing, and coverage is left to the contractor's judgment. The code is reported per millicurie: each billing unit represents 1 mCi of thallium-201. The code identifies the radiopharmaceutical, not the image acquisition or interpretation.

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 A9505 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

A9505 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

A9505 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
A9505 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 A9505 rate is calculated

Each of A9505’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 · A9505

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 A9505

A9505 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 · A9505

Which rate does Medicare pay?

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

POS 11 · non-facility rate · national

—

A9505 isn’t priced in this setting.

A9505 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • A9505

    Thallium-201, per millicurie0 wRVU

    Not priced

  • A9500

    Tc-99m sestamibi, per study dose0 wRVU

    Not priced

  • A9502

    Tetrofosmin, per study dose0 wRVU

    Not priced

  • A9526

    Nitrogen-13 ammonia, per study dose, up to 40 mCi0 wRVU

    Not priced

How to choose

A9500Tc-99m sestamibiPer study dose
A9500 identifies technetium-99m sestamibi, not thallium-201. Both may be used for myocardial perfusion imaging, but the reported code follows the radiopharmaceutical supplied.
A9502TetrofosminPer study dose
A9502 is for technetium-99m tetrofosmin. Use A9505 for thallium-201 thallous chloride.
A9526Nitrogen-13 ammoniaPer study dose, up to 40 mCi
A9526 identifies nitrogen-13 ammonia, a PET tracer for myocardial perfusion imaging; A9505 identifies thallium-201.

Codes related to A9505

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

Codes related to A9505
CodeHow it relatesNational office range
Used instead
A9500Tc-99m sestamibi, per study doseTechnetium-99m sestamibi is another radiopharmaceutical used for myocardial perfusion imaging.No office rate
A9502Tetrofosmin, per study doseTechnetium-99m tetrofosmin is another tracer used for myocardial perfusion imaging.No office rate
A9501Teboroxime, per study doseTechnetium-99m teboroxime is a different radiopharmaceutical used for cardiac perfusion imaging.No office rate
A9526Nitrogen-13 ammonia, per study dose, up to 40 mCiNitrogen-13 ammonia is a PET radiopharmaceutical used for myocardial perfusion imaging.No office rate

A9505 billing questions

How many units should be reported?

Report the number of millicuries of thallium-201 represented by the billed amount. One unit represents 1 mCi.

When is A9505 chosen instead of a technetium cardiac tracer?

A9505 identifies thallium-201 thallous chloride. Codes such as A9500 and A9502 identify different radiopharmaceuticals used for myocardial perfusion imaging.

Does A9505 include the nuclear imaging service?

A9505 identifies the thallium-201 radiopharmaceutical, not image acquisition or interpretation.

How does Medicare set payment and coverage?

The physician fee schedule status is C, so there is no national payment amount; the Medicare contractor sets payment for each claim. Coverage is left to the contractor's judgment.

What documentation supports the units?

Documentation should identify the thallium-201 radiopharmaceutical and the millicurie amount associated with the claim.

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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