# CPT 51798: Ultrasound measurement of post-voiding residual urine

Medicare CPT 51798 pays $12.69 in a non-facility setting and $12.69 in a facility setting under the 2026 Medicare Physician Fee Schedule, before geographic adjustment. After geographic adjustment, state amounts run from $10.67 in Arkansas to $14.91 in District of Columbia, a 40% spread.

Web page: https://www.med-reveal.com/rates/51798-cpt-fee-schedule
Section: Surgery and Procedures

## Medicare rates

| | Amount |
| --- | --- |
| National non-facility | $12.69 |
| National facility | $12.69 |
| Conversion factor | 33.4009 |
| Release | 2026 Q4 (effective 2026-10-01) |

## By state

| State | Non-facility | Facility |
| --- | --- | --- |
| District of Columbia | $14.91 | $14.91 |
| California | $14.59 | $14.59 |
| New York | $14.32 | $14.32 |
| New Jersey | $14.26 | $14.26 |
| Washington | $14.24 | $14.24 |
| Massachusetts | $14.07 | $14.07 |
| Hawaii | $14.06 | $14.06 |
| Connecticut | $13.76 | $13.76 |
| Florida | $13.37 | $13.37 |
| Colorado | $13.32 | $13.32 |
| Maryland | $13.26 | $13.26 |
| Alaska | $13.17 | $13.17 |
| Oregon | $13.16 | $13.16 |
| New Hampshire | $13.10 | $13.10 |
| Rhode Island | $13.02 | $13.02 |
| Illinois | $12.90 | $12.90 |
| Puerto Rico | $12.81 | $12.81 |
| Virgin Islands | $12.81 | $12.81 |
| Montana | $12.69 | $12.69 |
| Nevada | $12.59 | $12.59 |
| Minnesota | $12.57 | $12.57 |
| Wyoming | $12.52 | $12.52 |
| Pennsylvania | $12.49 | $12.49 |
| Delaware | $12.48 | $12.48 |
| Texas | $12.46 | $12.46 |
| North Dakota | $12.30 | $12.30 |
| Virginia | $12.29 | $12.29 |
| Georgia | $12.27 | $12.27 |
| South Dakota | $12.25 | $12.25 |
| Vermont | $12.24 | $12.24 |
| Michigan | $12.23 | $12.23 |
| Arizona | $12.22 | $12.22 |
| Maine | $11.91 | $11.91 |
| Utah | $11.90 | $11.90 |
| New Mexico | $11.83 | $11.83 |
| Wisconsin | $11.73 | $11.73 |
| Missouri | $11.69 | $11.69 |
| Louisiana | $11.68 | $11.68 |
| South Carolina | $11.68 | $11.68 |
| North Carolina | $11.65 | $11.65 |
| Ohio | $11.65 | $11.65 |
| Indiana | $11.47 | $11.47 |
| West Virginia | $11.41 | $11.41 |
| Idaho | $11.38 | $11.38 |
| Nebraska | $11.35 | $11.35 |
| Kentucky | $11.30 | $11.30 |
| Tennessee | $11.29 | $11.29 |
| Iowa | $11.27 | $11.27 |
| Oklahoma | $11.26 | $11.26 |
| Kansas | $11.21 | $11.21 |
| Alabama | $10.90 | $10.90 |
| Mississippi | $10.85 | $10.85 |
| Arkansas | $10.67 | $10.67 |

## Related codes

- 50010: Renal exploration, not necessitating other specific procedures — https://www.med-reveal.com/rates/50010-cpt-fee-schedule
- 50060: Nephrolithotomy, removal of calculus — https://www.med-reveal.com/rates/50060-cpt-fee-schedule
- 50120: Pyelotomy, with exploration — https://www.med-reveal.com/rates/50120-cpt-fee-schedule
- 50200: Renal biopsy, percutaneous, needle — https://www.med-reveal.com/rates/50200-cpt-fee-schedule
- 50230: Nephrectomy, radical, transperitoneal or retroperitoneal — https://www.med-reveal.com/rates/50230-cpt-fee-schedule
- 50240: Nephrectomy, partial — https://www.med-reveal.com/rates/50240-cpt-fee-schedule
- 50250: Cryosurgical ablation of renal mass, percutaneous — https://www.med-reveal.com/rates/50250-cpt-fee-schedule
- 50320: Donor nephrectomy, open, from living donor — https://www.med-reveal.com/rates/50320-cpt-fee-schedule

Commercial negotiated rates for 51798 by payer and state: https://www.med-reveal.com/solutions/rate-benchmarking

## Sources

- CMS Medicare fee schedules (2026 Q4): https://www.cms.gov/medicare/payment/fee-schedules