HCPCS code A9585: Gadobutrol injection, per 0.1 mL2026 Medicare rate & RVUs in California

CMS doesn’t publish an office rate for A9585 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 A9585 covers

Gadobutrol is an intravenous gadolinium-based contrast agent used during MRI to improve visualization of tissues and blood vessels. Radiology departments and imaging centers commonly report the drug when it is administered for a contrast-enhanced examination; the imaging service itself is reported separately. The code identifies gadobutrol specifically, rather than another gadolinium contrast agent or an unspecified product.

Medicare assigns this code physician fee schedule status X: it is not a physician service under the Medicare statute, so the physician fee schedule does not pay it. When covered, payment is through another fee schedule or payment system, with the Medicare contractor setting payment. Coverage is left to the contractor’s judgment. Each billing unit represents 0.1 mL of gadobutrol; for example, 1 mL corresponds to 10 units.

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 A9585 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 A9585 rate is calculated

Each of A9585’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 A9585

A9585 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.

A9585 compared with similar codes

How to choose

A9575Gadoterate injectionPer 0.1 mL

A9575 is for gadoterate meglumine; A9585 is for gadobutrol. Choose based on the contrast agent administered.

A9573Gadopiclenol injectionPer 1 mL

A9573 identifies gadopiclenol, not gadobutrol. These codes distinguish different named MRI contrast agents.

A9579MRI contrast agentUnspecified agent, per mL

A9579 identifies gadolinium-based MR contrast without naming a specific agent. Use A9585 when the administered agent is gadobutrol.

Codes related to A9585

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