CPT code 51725: Cystometrogram, simple filling-phase study2026 Medicare rate & RVUs

Medicare pays $198.40 for 51725 nationally in the office. Local office rates run $175.05–$263.74.

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

What 51725 covers

A simple cystometrogram records bladder pressure as the bladder is filled, helping assess sensations of filling, capacity, and pressure behavior. A urologist or other qualified clinician commonly performs the test in an office or outpatient setting, using a bladder catheter and a simple pressure-measuring setup. It can support evaluation of symptoms such as urinary retention or incontinence when bladder function needs assessment.

Choose this code for the simple study, not a more extensive cystometrogram that adds complex pressure measurements or other testing. Documentation should identify the clinical indication, method, pressure findings, and relevant filling observations. The global service includes same-day preoperative and postoperative care; modifier 26 identifies interpretation, modifier TC identifies equipment and staff, and no modifier represents the global service. In a same-session multiple-procedure setting, the highest-valued procedure is paid in full and other procedures receive the standard reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment requires documented 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.

Where 51725 pays more and less

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

109 of 109 payment localities

51725 rates by state

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

How the 51725 rate is calculated

Each of 51725’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 51725

The CMS indicators that decide how 51725 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

51725 compared with similar codes

How to choose

51726CystometrogramElectronic pressure-volume testing

51725 is the simple pressure study; 51726 is used for complex cystometrogram testing with calibrated electronic equipment.

51727Urodynamic testingWith urethral pressure profile

51727 includes voiding-pressure studies in addition to cystometrogram testing; 51725 describes the simple filling-pressure study.

51736UroflowmetrySimple flow study

51736 measures urine flow. It does not substitute for the pressure recording during bladder filling reported with 51725.

51798Bladder scanPost-void residual or bladder capacity

51798 estimates bladder volume by ultrasound, commonly for residual urine assessment; 51725 records pressure as the bladder fills.

Codes related to 51725

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