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Every billing code / Lab and other tests / General Laboratory

CPT 87389

Immunoassay

Current code53 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

Medicaid (state program): Washington Apple Health fee-for-service. Applies only to Medicaid enrollees.

HospitalMedicaid (state program) rates (lowest – highest)Cash priceList price (before discounts)
Capital Medical CenterOlympiaFile dated 2026-08-27—$40.40$101
Cascade Medical CenterLeavenworth$80.661 plan$121$151
Cascade Valley HospitalArlington—$102$127
Coulee Medical CenterGrand Coulee—$117$130
Deaconess Medical CenterSpokaneFile dated 2026-08-27—$106$266
EvergreenHealth Medical CenterKirkland—$114$143
EvergreenHealth MonroeMonroe—$114$143
Harborview Medical CenterSeattleFile dated 2026-04-01—$167 – $171$238 – $244
Highline Medical CenterBurienFile dated 2026-02-28—$67.85$222
Island HospitalAnacortes—$80.25 – $90.00$80.25 – $90.00
Kadlec Regional Medical CenterRichlandFile dated 2026-04-01—$97.30 – $193$139 – $275
Legacy Salmon Creek Medical CenterVancouverFile dated 2026-04-01———
Mary Bridge Children's HospitalTacomaFile dated 2026-08-27—$40.40$101
MultiCare Auburn Medical CenterAuburnFile dated 2026-08-27—$40.40$101
MultiCare Covington Medical CenterCovingtonFile dated 2026-08-27—$40.40$101
MultiCare Good Samaritan HospitalPuyallupFile dated 2026-08-27—$40.40$101
MultiCare Valley HospitalSpokane ValleyFile dated 2026-08-27—$106$266
Olympic Medical CenterPort AngelesFile dated 2026-06-24—$96.80$121
Overlake Hospital Medical Center & ClinicsBellevueFile dated 2026-04-01—$14.70 – $19.50$29.40 – $39.00
PeaceHealth Peace Island Medical CenterFriday Harbor—$59.80$92.00
PeaceHealth Southwest Medical CenteVancouver—$82.55 – $85.15$127 – $131
PeaceHealth St John Medical CenterLongview—$91.00 – $93.60$140 – $144
PeaceHealth St Joseph Medical CenterBellingham—$107 – $111$165 – $170
PeaceHealth United General Medical CenterSedro Woolley—$51.35$79.00
Prov Sacred HRT Med Ctr & Childs Hosp.SpokaneFile dated 2026-04-01—$139 – $160$199 – $229
Providence Centralia HospitalCentraliaFile dated 2026-04-01—$192$370
Providence Holy Family HospitalSpokaneFile dated 2026-04-01—$125 – $150$178 – $214
Providence Mount Carmel HospitalColvilleFile dated 2026-04-01—$79.80 – $91.70$114 – $131
Providence Regional Medical Center EverettEverettFile dated 2026-04-01—$165$317
Providence St Joseph HospitalChewelahFile dated 2026-04-01—$61.60 – $64.40$88.00 – $92.00
Providence St Mary Medical CenterWalla WallaFile dated 2026-04-01—$32.90 – $68.60$47.00 – $98.00
Providence St Peter HospitalOlympiaFile dated 2026-04-01—$192$370
Seattle Children's HospitalSeattle$35.99 – $70.64at least 1 plan$143 – $280$143 – $280
Skagit Valley HospitalMount Vernon—$127$159
St Anthony HospitalGig HarborFile dated 2026-02-28—$67.58$222
St Clare HospitalLakewoodFile dated 2026-02-28—$64.05$222
St Elizabeth HospitalEnumclawFile dated 2026-02-28—$78.52$222
St Francis Community HospitalFederal WayFile dated 2026-02-28—$69.73$222
St Joseph Medical CenterTacomaFile dated 2026-02-28—$73.59$222
St Michael Medical CenterSilverdaleFile dated 2026-02-28—$98.06$222
Swedish Edmonds HospitalEdmondsFile dated 2026-04-01—$145 – $152$302 – $317
Swedish IssaquahIssaquahFile dated 2026-04-01—$145 – $152$302 – $317
Swedish Medical CenterSeattleFile dated 2026-04-01—$145 – $152$302 – $317
Swedish Medical Center / Cherry HillSeattleFile dated 2026-04-01—$145 – $152$302 – $317
Tacoma General Allenmore HospitalTacomaFile dated 2026-08-27—$40.40$101
Three Rivers HospitalBrewster$1401 plan$200$200
Trios HealthKennewick——$113
University of Washington Medical CtrSeattleFile dated 2026-04-01—$108$155
Virginia Mason Medical CenterSeattle—$78.54$154
Wellfound Behavioral Health HospitalTacomaFile dated 2026-08-27—$72.40$181
WhidbeyHealth Medical CenterCoupeville—$183$183
Yakima Valley MemorialYakimaFile dated 2026-08-27—$46.00$115

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)
$24.08