HCPCS code A9547: Indium-111 oxyquinoline, per 0.5 mCi2026 Medicare rate & RVUs in California

CMS doesn’t publish an office rate for A9547 in California.

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

What A9547 covers

Indium-111 oxyquinoline is used to label a patient’s white blood cells outside the body. The labeled cells are returned by intravenous injection and imaged to help locate infection or inflammation, including suspected abscess or osteomyelitis. Nuclear medicine departments typically prepare or handle the labeled cells and perform the imaging; the drug-supply code identifies the radiopharmaceutical, not the imaging procedure.

A9547 represents each 0.5 millicurie of indium-111 oxyquinoline. On the physician fee schedule, status C means CMS publishes no national payment amount and the Medicare Administrative Contractor sets payment for each claim. The HCPCS pricing method is payment set by statute, and the coverage code leaves coverage to the contractor’s judgment. Report units according to the total activity represented by the billed supply.

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 A9547 pays more and less in California

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

29 of 29 payment localities

How the A9547 rate is calculated

Each of A9547’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.

Payment rules and modifiers for A9547

A9547 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.

A9547 compared with similar codes

How to choose

A9548Indium-111 pentetatePer 0.5 mCi

A9548 identifies indium-111 pentetate, not the oxyquinoline used to label white blood cells. Select according to the radiopharmaceutical administered.

A9541Sulfur colloidPer study dose

A9541 identifies technetium-99m sulfur colloid, which can be used for marrow imaging; it is not the labeled-white-cell supply represented by A9547.

A9556Gallium-67 citratePer millicurie

A9556 identifies gallium-67 citrate, a different tracer used for diagnostic imaging. It does not represent indium-111-labeled white cells.

Codes related to A9547

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

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