CPT code 49427: Shunt injection, peritoneovenous shunt assessment2026 Medicare rate & RVUs in Washington, DC area

In Washington, DC area, Medicare pays $37.86 for 49427 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 49427 nationwide

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

What 49427 covers

This service evaluates an existing peritoneovenous shunt, such as a LeVeen shunt, by injecting contrast into the shunt and assessing its flow. It may be performed by an interventional radiologist or surgeon for a patient with ascites when clinical findings raise concern about shunt patency or function. The procedure is distinct from placing, revising, ligating, or removing the shunt.

Report 49427 for the injection and assessment, supported by documentation identifying the shunt, the reason for evaluation, the access and injection performed, and the findings. The CMS global period is 0 days, so same-day preoperative and postoperative care is included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple procedure reduction. Bilateral adjustment is inappropriate for this service. Assistant-at-surgery payment requires documentation of medical necessity; co-surgeons and team surgery are not permitted.

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.

How Washington, DC area compares for 49427

Across 109 of 109 payment localities, the facility rate for 49427 runs from $32.75 in Wisconsin to $48.46 in Alaska. Washington, DC area pays $37.86. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

49427 rates by state

Office rate range in each state. Select a state to see its payment localities.

See 49427 in every payment locality

How the 49427 rate is calculated

Each of 49427’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 49427

The CMS indicators that decide how 49427 is paid alongside other services.

What modifiers do to the payment

When to use modifier 51

Codes related to 49427

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

How 49427 has changed in Washington, DC area

Price 49427 for an earlier date of service

Where the Washington, DC area rate applies

Washington, DC area is a Medicare payment area, not a city. Our Census mapping connects it to 1 cities and communities in District of Columbia. Some span more than one payment area; confirm with the service ZIP.

• Washington

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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