Billing code 50436: Nephrostomy tract dilationMedicare rate & RVUs in Modesto

In Modesto, Medicare pays $135.66 for 50436 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 50436 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 50436 covers

A urologist or interventional radiologist enlarges an established nephrostomy tract through the skin to accommodate instruments needed for an endourologic procedure, such as accessing the collecting system for stone treatment. The service may take place in an operating room or an image-guided procedure suite. Imaging guidance, such as ultrasound or fluoroscopy, is included when performed as part of the tract dilation.

Report the code for dilation of an existing tract, not for creating a new nephrostomy access or simply exchanging a catheter. The operative or procedure note should establish that the tract already existed, explain the endourologic purpose of dilation, and describe the work performed; document imaging guidance when used. This is a minor procedure with a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures are performed in the same session, Medicare pays the highest-valued procedure in full and the others at 50%. For bilateral reporting with modifier 50, payment is at 150%. Assistant-at-surgery payment is restricted; 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 Modesto compares for 50436

Across 109 of 109 payment localities, the facility rate for 50436 runs from $125.80 in Arkansas to $178.50 in Alaska*. Modesto pays $135.66. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

50436 rates by state

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

See 50436 in every payment locality

How the 50436 rate is calculated

Each of 50436’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 50436

The CMS indicators that decide how 50436 is paid alongside other services.

What modifiers do to the payment

When to use modifier 50

Codes related to 50436

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

How 50436 has changed in Modesto

Price 50436 for an earlier date of service

Where the Modesto rate applies

Modesto is a Medicare payment area, not a city. Our Census mapping connects it to 33 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

• 50436 in Modesto
• 50436 in Airport
• 50436 in Bret Harte
• 50436 in Bystrom
• 50436 in Ceres
• 50436 in Cowan
• 50436 in Crows Landing
• 50436 in Del Rio

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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