# CPT 91035: Esophageal pH monitoring, prolonged, mucosal attached telemetry

Medicare CPT 91035 pays $502.35 in a non-facility setting and $502.35 in a facility setting under the 2026 Medicare Physician Fee Schedule, before geographic adjustment. After geographic adjustment, state amounts run from $437.09 in Arkansas to $585.02 in District of Columbia, a 34% spread.

Web page: https://www.med-reveal.com/rates/91035-cpt-fee-schedule
Section: Medical and Therapeutic Services
Billed by: Gastroenterology

## Medicare rates

| | Amount |
| --- | --- |
| National non-facility | $502.35 |
| National facility | $502.35 |
| Conversion factor | 33.4009 |
| Release | 2026 Q4 (effective 2026-10-01) |

## By state

| State | Non-facility | Facility |
| --- | --- | --- |
| District of Columbia | $585.02 | $585.02 |
| California | $583.57 | $583.57 |
| Washington | $565.31 | $565.31 |
| New Jersey | $561.57 | $561.57 |
| Hawaii | $561.28 | $561.28 |
| New York | $558.11 | $558.11 |
| Massachusetts | $558.07 | $558.07 |
| Alaska | $554.95 | $554.95 |
| Connecticut | $538.75 | $538.75 |
| Colorado | $530.39 | $530.39 |
| Oregon | $525.22 | $525.22 |
| Maryland | $522.35 | $522.35 |
| New Hampshire | $519.99 | $519.99 |
| Rhode Island | $517.50 | $517.50 |
| Minnesota | $511.74 | $511.74 |
| Florida | $508.58 | $508.58 |
| Puerto Rico | $507.18 | $507.18 |
| Virgin Islands | $507.18 | $507.18 |
| Montana | $502.34 | $502.34 |
| Nevada | $501.96 | $501.96 |
| Wyoming | $501.05 | $501.05 |
| North Dakota | $499.37 | $499.37 |
| South Dakota | $499.02 | $499.02 |
| Delaware | $496.76 | $496.76 |
| Vermont | $495.42 | $495.42 |
| Texas | $495.37 | $495.37 |
| Pennsylvania | $494.03 | $494.03 |
| Virginia | $493.30 | $493.30 |
| Illinois | $492.06 | $492.06 |
| Arizona | $487.82 | $487.82 |
| Georgia | $482.92 | $482.92 |
| Maine | $480.65 | $480.65 |
| Wisconsin | $480.17 | $480.17 |
| Michigan | $477.21 | $477.21 |
| Utah | $475.10 | $475.10 |
| North Carolina | $470.69 | $470.69 |
| South Carolina | $467.73 | $467.73 |
| Indiana | $467.25 | $467.25 |
| New Mexico | $466.37 | $466.37 |
| Missouri | $465.58 | $465.58 |
| Nebraska | $464.92 | $464.92 |
| Idaho | $464.06 | $464.06 |
| Louisiana | $463.82 | $463.82 |
| Ohio | $463.63 | $463.63 |
| Iowa | $461.46 | $461.46 |
| Tennessee | $459.48 | $459.48 |
| Kansas | $457.09 | $457.09 |
| Oklahoma | $453.56 | $453.56 |
| Kentucky | $452.47 | $452.47 |
| West Virginia | $446.14 | $446.14 |
| Alabama | $444.48 | $444.48 |
| Mississippi | $439.11 | $439.11 |
| Arkansas | $437.09 | $437.09 |

## Related codes

- 91010: Esophageal motility study — https://www.med-reveal.com/rates/91010-cpt-fee-schedule
- 91013: Esophageal motility study with stimulation or perfusion (add-on) — https://www.med-reveal.com/rates/91013-cpt-fee-schedule
- 91020: Gastric motility studies — https://www.med-reveal.com/rates/91020-cpt-fee-schedule
- 91022: Duodenal motility study — https://www.med-reveal.com/rates/91022-cpt-fee-schedule
- 91030: Esophagus, acid perfusion (Bernstein) test — https://www.med-reveal.com/rates/91030-cpt-fee-schedule
- 91034: Esophageal pH monitoring, prolonged, catheter placement — https://www.med-reveal.com/rates/91034-cpt-fee-schedule
- 91038: Esophageal function test, prolonged, greater than 1 hour — https://www.med-reveal.com/rates/91038-cpt-fee-schedule
- 91040: Esophageal balloon distension provocation study — https://www.med-reveal.com/rates/91040-cpt-fee-schedule

Commercial negotiated rates for 91035 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