# CPT 88341: Immunohistochemistry, each additional antibody stain (add-on)

Medicare CPT 88341 pays $94.19 in a non-facility setting and $94.19 in a facility setting under the 2026 Medicare Physician Fee Schedule, before geographic adjustment. After geographic adjustment, state amounts run from $83.39 in Arkansas to $108.66 in District of Columbia, a 30% spread.

Web page: https://www.med-reveal.com/rates/88341-cpt-fee-schedule
Section: Laboratory and Pathology
Billed by: Pathology

## Medicare rates

| | Amount |
| --- | --- |
| National non-facility | $94.19 |
| National facility | $94.19 |
| Conversion factor | 33.4009 |
| Release | 2026 Q4 (effective 2026-10-01) |

## By state

| State | Non-facility | Facility |
| --- | --- | --- |
| District of Columbia | $108.66 | $108.66 |
| California | $108.53 | $108.53 |
| Alaska | $108.13 | $108.13 |
| Washington | $105.27 | $105.27 |
| New Jersey | $104.68 | $104.68 |
| Hawaii | $104.39 | $104.39 |
| Massachusetts | $103.99 | $103.99 |
| New York | $103.91 | $103.91 |
| Connecticut | $100.44 | $100.44 |
| Colorado | $99.17 | $99.17 |
| Oregon | $98.29 | $98.29 |
| Maryland | $97.66 | $97.66 |
| New Hampshire | $97.24 | $97.24 |
| Rhode Island | $96.99 | $96.99 |
| Minnesota | $96.14 | $96.14 |
| Puerto Rico | $95.02 | $95.02 |
| Virgin Islands | $95.02 | $95.02 |
| Florida | $94.76 | $94.76 |
| Nevada | $94.21 | $94.21 |
| Montana | $94.19 | $94.19 |
| Wyoming | $94.10 | $94.10 |
| North Dakota | $93.99 | $93.99 |
| South Dakota | $93.97 | $93.97 |
| Delaware | $93.34 | $93.34 |
| Vermont | $93.27 | $93.27 |
| Texas | $93.10 | $93.10 |
| Pennsylvania | $92.83 | $92.83 |
| Virginia | $92.81 | $92.81 |
| Illinois | $92.01 | $92.01 |
| Arizona | $91.80 | $91.80 |
| Georgia | $90.81 | $90.81 |
| Wisconsin | $90.79 | $90.79 |
| Maine | $90.71 | $90.71 |
| Michigan | $89.73 | $89.73 |
| Utah | $89.63 | $89.63 |
| North Carolina | $89.01 | $89.01 |
| Indiana | $88.51 | $88.51 |
| South Carolina | $88.40 | $88.40 |
| Nebraska | $88.17 | $88.17 |
| New Mexico | $87.99 | $87.99 |
| Idaho | $87.98 | $87.98 |
| Missouri | $87.97 | $87.97 |
| Louisiana | $87.64 | $87.64 |
| Ohio | $87.63 | $87.63 |
| Iowa | $87.57 | $87.57 |
| Tennessee | $87.17 | $87.17 |
| Kansas | $86.78 | $86.78 |
| Oklahoma | $86.04 | $86.04 |
| Kentucky | $85.78 | $85.78 |
| Alabama | $84.61 | $84.61 |
| West Virginia | $84.45 | $84.45 |
| Mississippi | $83.61 | $83.61 |
| Arkansas | $83.39 | $83.39 |

## Related codes

- 88300: Level I surgical pathology, gross examination only — https://www.med-reveal.com/rates/88300-cpt-fee-schedule
- 88302: Level II surgical pathology, gross and microscopic examination — https://www.med-reveal.com/rates/88302-cpt-fee-schedule
- 88304: Level III surgical pathology, gross and microscopic examination — https://www.med-reveal.com/rates/88304-cpt-fee-schedule
- 88305: Level IV surgical pathology, gross and microscopic examination — https://www.med-reveal.com/rates/88305-cpt-fee-schedule
- 88307: Level V surgical pathology, gross and microscopic examination — https://www.med-reveal.com/rates/88307-cpt-fee-schedule
- 88309: Level VI surgical pathology, gross and microscopic examination — https://www.med-reveal.com/rates/88309-cpt-fee-schedule
- 88311: Decalcification procedure — https://www.med-reveal.com/rates/88311-cpt-fee-schedule
- 88312: Special stain, group I, microorganisms — https://www.med-reveal.com/rates/88312-cpt-fee-schedule

Commercial negotiated rates for 88341 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