# CPT 94729: Diffusing capacity, carbon monoxide

Medicare CPT 94729 pays $63.46 in a non-facility setting and $63.46 in a facility setting under the 2026 Medicare Physician Fee Schedule, before geographic adjustment. After geographic adjustment, state amounts run from $55.18 in Arkansas to $73.93 in District of Columbia, a 34% spread.

Web page: https://www.med-reveal.com/rates/94729-cpt-fee-schedule
Section: Medical and Therapeutic Services
Billed by: Allergy & Immunology, General Acute Care Hospital, Pulmonary Disease, Sleep Medicine

## Medicare rates

| | Amount |
| --- | --- |
| National non-facility | $63.46 |
| National facility | $63.46 |
| Conversion factor | 33.4009 |
| Release | 2026 Q4 (effective 2026-10-01) |

## By state

| State | Non-facility | Facility |
| --- | --- | --- |
| District of Columbia | $73.93 | $73.93 |
| California | $73.73 | $73.73 |
| Washington | $71.43 | $71.43 |
| New Jersey | $70.96 | $70.96 |
| Hawaii | $70.91 | $70.91 |
| New York | $70.53 | $70.53 |
| Massachusetts | $70.51 | $70.51 |
| Alaska | $70.00 | $70.00 |
| Connecticut | $68.08 | $68.08 |
| Colorado | $67.00 | $67.00 |
| Oregon | $66.35 | $66.35 |
| Maryland | $66.00 | $66.00 |
| New Hampshire | $65.69 | $65.69 |
| Rhode Island | $65.37 | $65.37 |
| Minnesota | $64.63 | $64.63 |
| Florida | $64.28 | $64.28 |
| Puerto Rico | $64.07 | $64.07 |
| Virgin Islands | $64.07 | $64.07 |
| Montana | $63.46 | $63.46 |
| Nevada | $63.41 | $63.41 |
| Wyoming | $63.29 | $63.29 |
| North Dakota | $63.06 | $63.06 |
| South Dakota | $63.02 | $63.02 |
| Delaware | $62.75 | $62.75 |
| Texas | $62.57 | $62.57 |
| Vermont | $62.57 | $62.57 |
| Pennsylvania | $62.41 | $62.41 |
| Virginia | $62.31 | $62.31 |
| Illinois | $62.19 | $62.19 |
| Arizona | $61.62 | $61.62 |
| Georgia | $61.01 | $61.01 |
| Maine | $60.70 | $60.70 |
| Wisconsin | $60.63 | $60.63 |
| Michigan | $60.29 | $60.29 |
| Utah | $60.01 | $60.01 |
| North Carolina | $59.44 | $59.44 |
| South Carolina | $59.07 | $59.07 |
| Indiana | $59.00 | $59.00 |
| New Mexico | $58.91 | $58.91 |
| Missouri | $58.80 | $58.80 |
| Nebraska | $58.70 | $58.70 |
| Idaho | $58.59 | $58.59 |
| Louisiana | $58.58 | $58.58 |
| Ohio | $58.56 | $58.56 |
| Iowa | $58.26 | $58.26 |
| Tennessee | $58.02 | $58.02 |
| Kansas | $57.71 | $57.71 |
| Oklahoma | $57.27 | $57.27 |
| Kentucky | $57.14 | $57.14 |
| West Virginia | $56.36 | $56.36 |
| Alabama | $56.12 | $56.12 |
| Mississippi | $55.44 | $55.44 |
| Arkansas | $55.18 | $55.18 |

## Related codes

- 94002: Ventilation assist management, hospital inpatient, initial day — https://www.med-reveal.com/rates/94002-cpt-fee-schedule
- 94003: Ventilation assist management, hospital inpatient, each subsequent day — https://www.med-reveal.com/rates/94003-cpt-fee-schedule
- 94010: Spirometry, including graphic record — https://www.med-reveal.com/rates/94010-cpt-fee-schedule
- 94060: Bronchodilation responsiveness, spirometry pre and post — https://www.med-reveal.com/rates/94060-cpt-fee-schedule
- 94070: Bronchospasm provocation evaluation, multiple spirometric determinations — https://www.med-reveal.com/rates/94070-cpt-fee-schedule
- 94150: Vital capacity, total (separate procedure) — https://www.med-reveal.com/rates/94150-cpt-fee-schedule
- 94200: Maximum breathing capacity, maximal voluntary ventilation — https://www.med-reveal.com/rates/94200-cpt-fee-schedule
- 94375: Respiratory flow volume loop — https://www.med-reveal.com/rates/94375-cpt-fee-schedule

Commercial negotiated rates for 94729 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