CPT code 36593: Device declot, thrombolytic treatment2026 Medicare rate & RVUs in California

Medicare pays $41.36–$54.30 for 36593 in the office in California, from Chico, CA to San Benito County, CA. Which amount applies depends on the service address.

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

What 36593 covers

This service treats an obstructed vascular access device by instilling a thrombolytic agent into the device to dissolve the material blocking flow. Examples include a central venous catheter used for dialysis or an implanted infusion port that will not flush or provide adequate blood return. The service is performed by a clinician managing the access device in settings such as an office, infusion center, dialysis unit, or hospital. It describes thrombolytic treatment rather than mechanical extraction of an obstruction or replacement of the catheter.

Report 36593 when the documented service is thrombolytic declotting of the vascular device. Documentation should identify the affected device, the patency problem, the treatment performed, and the response or outcome. If the drug is separately supplied and reportable, its drug code may also be reported. CMS classifies 36593 as a technical-component-only service; a separate code covers interpretation. The reported service therefore represents the technical work, not an interpretation component.

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 36593 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 36593 rate is calculated

Each of 36593’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 36593

The CMS indicators that decide how 36593 is paid alongside other services.

36593 compared with similar codes

How to choose

36595Catheter removalMechanical, no port or pump

36593 describes thrombolytic treatment. Use 36595 when the obstruction is mechanically removed through a transcatheter approach.

36596Catheter declottingMechanical, thrombotic obstruction

36593 describes thrombolytic treatment. Code 36596 is for mechanical removal by a non-transcatheter approach.

36598Device evaluationFluoroscopic contrast study

36593 treats an obstruction with a thrombolytic agent. Code 36598 describes radiologic evaluation of an existing central venous access device using contrast and fluoroscopy.

Codes related to 36593

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