CPT 87420

Immunoassay

Current code39 hospitals with prices

This name is the CMS category the code belongs to (CMS's Restructured BETOS Classification System), shared with similar codes. The official CPT description belongs to the American Medical Association and isn't shown.

What Washington hospitals publish for this code

Commercial insurance: Rate negotiated with a private insurer or employer plan, including exchange and public-option plans.

Prices for CPT 87420 by hospital
HospitalCommercial insurance rates (lowest – highest)Cash priceList price (before discounts)
Capital Medical CenterOlympiaFile dated 2026-08-27$13.91 – $85.8520 plans$40.40$101
Cascade Medical CenterLeavenworth$12.52 – $49.532 plans$63.20$79.00
Cascade Valley HospitalArlington$2.38 – $40910 plans$22.40$28.00
Deaconess Medical CenterSpokaneFile dated 2026-08-27$13.91 – $96.3616 plans$52.80$132
Harborview Medical CenterSeattleFile dated 2026-04-01$20.86 – $43.128 plans——
Island HospitalAnacortes$13.91 – $26.826 plans——
Kadlec Regional Medical CenterRichlandFile dated 2026-04-01$14.86 – $54.397 plans$160$229
Legacy Salmon Creek Medical CenterVancouverFile dated 2026-04-01$26.01 – $43.047 plans——
Mary Bridge Children's HospitalTacomaFile dated 2026-08-27$13.91 – $10719 plans$24.80$62.00
MultiCare Auburn Medical CenterAuburnFile dated 2026-08-27$13.91 – $64.5420 plans$24.80$62.00
MultiCare Covington Medical CenterCovingtonFile dated 2026-08-27$13.91 – $64.5420 plans$24.80$62.00
MultiCare Good Samaritan HospitalPuyallupFile dated 2026-08-27$13.91 – $64.5420 plans$24.80$62.00
MultiCare Valley HospitalSpokane ValleyFile dated 2026-08-27$13.91 – $95.0416 plans$52.80$132
Olympic Medical CenterPort AngelesFile dated 2026-06-24———
Overlake Hospital Medical Center & ClinicsBellevueFile dated 2026-04-01$13.22 – $13113 plans——
PeaceHealth Peace Island Medical CenterFriday Harbor—$89.70$138
PeaceHealth Southwest Medical CenteVancouver$5.56 – $45.136 plans$161$247
PeaceHealth St John Medical CenterLongview$5.56 – $80.045 plans$113$174
PeaceHealth St Joseph Medical CenterBellingham$16.69 – $26.832 plans$257$396
PeaceHealth United General Medical CenterSedro Woolley$21.841 plan$194$299
Prov Sacred HRT Med Ctr & Childs Hosp.SpokaneFile dated 2026-04-01$16.69 – $82.0111 plans$104 – $216$148 – $308
Providence Centralia HospitalCentraliaFile dated 2026-04-01$23.51 – $1317 plans$88.40$170
Providence Holy Family HospitalSpokaneFile dated 2026-04-01$16.69 – $59.388 plans$270$385
Providence Mount Carmel HospitalColvilleFile dated 2026-04-01—$174$248
Providence Regional Medical Center EverettEverettFile dated 2026-04-01$13.91 – $89.8611 plans——
Providence St Joseph HospitalChewelahFile dated 2026-04-01—$101$144
Providence St Mary Medical CenterWalla WallaFile dated 2026-04-01$22.26 – $89.865 plans$125$178
Providence St Peter HospitalOlympiaFile dated 2026-04-01$11.82 – $77.9010 plans——
Seattle Children's HospitalSeattle$83.97 – $14998 plans$156$156
Skagit Valley HospitalMount Vernon$16.69 – $62.52at least 10 plans$22.40 – $23.20$28.00 – $29.00
Swedish Edmonds HospitalEdmondsFile dated 2026-04-01$13.91 – $69.5512 plans——
Swedish IssaquahIssaquahFile dated 2026-04-01$12.52 – $69.5512 plans$64.32$134
Swedish Medical CenterSeattleFile dated 2026-04-01$12.52 – $69.5513 plans$64.32$134
Swedish Medical Center / Cherry HillSeattleFile dated 2026-04-01$12.52 – $63.9913 plans$64.32$134
Tacoma General Allenmore HospitalTacomaFile dated 2026-08-27$13.91 – $64.5420 plans$24.80$62.00
Trios HealthKennewick——$513
University of Washington Medical CtrSeattleFile dated 2026-04-01$16.69 – $43.627 plans——
Virginia Mason Medical CenterSeattle$13.91 – $62.7310 plans$34.68$68.00
Yakima Valley MemorialYakimaFile dated 2026-08-27$14.40 – $92.5619 plans$43.20$108

Lowest and highest amounts each hospital lists for this code as an outpatient, including lines it lists for both settings or without saying which. A doctor’s fee is shown separately when the hospital lists one with the code. “At least” means plans were counted in more than one group and some may be the same plan. This is one line of a bill; most care brings several.

Medicare (traditional) reference

Only for people on original Medicare. These are CMS’s 2026 amounts. They aren’t what private insurance or cash patients pay.

Lab fee schedule (national limit)
$13.91