HCPCS code A9577: MultiHance injection, per mL2026 Medicare rate & RVUs in Missouri

CMS doesn’t publish an office rate for A9577 in Missouri.

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

What A9577 covers

A9577 identifies gadobenate dimeglumine, marketed as MultiHance, an intravenous gadolinium-based contrast agent used with MRI. Radiology practices and imaging departments report the drug when it is administered for contrast-enhanced MRI, including examinations of the brain, spine, or liver. The imaging procedure and the contrast agent are distinct services; this code represents the drug, not the MRI itself.

Each unit represents 1 mL of gadobenate dimeglumine administered. Medicare assigns this drug statutory-exclusion status under the physician fee schedule, so that schedule does not pay for it. When Medicare covers the drug, HCPCS pricing classifies it as a Part B drug generally paid using CMS quarterly Average Sales Price drug pricing files. The Medicare contractor determines coverage.

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 A9577 pays more and less in Missouri

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

How the A9577 rate is calculated

Each of A9577’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 A9577

A9577 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.

A9577 compared with similar codes

How to choose

A9578MultiHance injectionMultipack, per mL

Both identify MultiHance, but A9577 is the per-mL code and A9578 is the multipack code. Select according to the product presentation reported.

A9579MRI contrast agentUnspecified agent, per mL

A9579 is for gadolinium-based MRI contrast not otherwise identified by a more specific agent code. A9577 specifically names gadobenate dimeglumine.

A9575Gadoterate injectionPer 0.1 mL

A9575 identifies gadoterate meglumine, not gadobenate dimeglumine. Use A9577 for MultiHance.

A9585Gadobutrol injectionPer 0.1 mL

A9585 identifies gadobutrol. It is not interchangeable with the drug-specific code for MultiHance, A9577.

Codes related to A9577

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