CPT 85520

Immunoassay

Current code47 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

Medicare Advantage: Rate for a private Medicare Advantage plan. Applies only to members of that plan.

Prices for CPT 85520 by hospital
HospitalMedicare Advantage rates (lowest – highest)Cash priceList price (before discounts)
Capital Medical CenterOlympiaFile dated 2026-08-27$12.83 – $14.116 plans$148$370
Cascade Valley HospitalArlington$13.74 – $4,1583 plans$271$339
Deaconess Medical CenterSpokaneFile dated 2026-08-27$12.83 – $14.118 plans$57.60$144
EvergreenHealth Medical CenterKirkland$13.09 – $13.555 plans$191$239
EvergreenHealth MonroeMonroe$13.09 – $13.555 plans$191$239
Harborview Medical CenterSeattleFile dated 2026-04-01$13.09 – $14.405 plans$203$290
Highline Medical CenterBurienFile dated 2026-02-28$13.09 – $15.0511 plans$129$422
Island HospitalAnacortes$14.02 – $14.8611 plans$199 – $337$199 – $337
Kadlec Regional Medical CenterRichlandFile dated 2026-04-01$13.09 – $15.717 plans$108 – $179$154 – $255
Legacy Salmon Creek Medical CenterVancouverFile dated 2026-04-01$13.48 – $14.666 plans——
Mary Bridge Children's HospitalTacomaFile dated 2026-08-27$12.83 – $14.117 plans$26.00$65.00
MultiCare Auburn Medical CenterAuburnFile dated 2026-08-27$12.83 – $14.117 plans$26.00$65.00
MultiCare Covington Medical CenterCovingtonFile dated 2026-08-27$12.83 – $14.117 plans$26.00$65.00
MultiCare Good Samaritan HospitalPuyallupFile dated 2026-08-27$12.83 – $14.117 plans$26.00$65.00
MultiCare Valley HospitalSpokane ValleyFile dated 2026-08-27$13.21 – $14.117 plans$57.60$144
Olympic Medical CenterPort AngelesFile dated 2026-06-24$14.72 – $18.935 plans$40.80$51.00
Overlake Hospital Medical Center & ClinicsBellevueFile dated 2026-04-01$13.09 – $13.613 plans$103$205
PeaceHealth Peace Island Medical CenterFriday Harbor—$250$384
PeaceHealth Southwest Medical CenteVancouver$13.09 – $15.0513 plans$242 – $632$373 – $972
PeaceHealth St John Medical CenterLongview$10.21 – $14.4014 plans$211 – $242$324 – $373
PeaceHealth St Joseph Medical CenterBellingham$13.09 – $14.408 plans$305 – $592$469 – $910
PeaceHealth United General Medical CenterSedro Woolley—$161$248
Prov Sacred HRT Med Ctr & Childs Hosp.SpokaneFile dated 2026-04-01$13.09 – $14.406 plans$60.20 – $181$86.00 – $258
Providence Centralia HospitalCentraliaFile dated 2026-04-01$13.09 – $20.947 plans$37.44 – $284$72.00 – $547
Providence Holy Family HospitalSpokaneFile dated 2026-04-01$13.09 – $14.405 plans$111$158
Providence Mount Carmel HospitalColvilleFile dated 2026-04-01—$114 – $198$163 – $283
Providence Regional Medical Center EverettEverettFile dated 2026-04-01$13.48 – $14.405 plans$91.52 – $99.32$176 – $191
Providence St Joseph HospitalChewelahFile dated 2026-04-01—$152 – $186$217 – $265
Providence St Mary Medical CenterWalla WallaFile dated 2026-04-01$13.09 – $14.406 plans$68.60 – $182$98.00 – $260
Providence St Peter HospitalOlympiaFile dated 2026-04-01$13.09 – $20.947 plans$37.44 – $284$72.00 – $547
Seattle Children's HospitalSeattle—$245 – $613$245 – $613
Skagit Valley HospitalMount Vernon$13.09 – $14.143 plans$279$349
St Anthony HospitalGig HarborFile dated 2026-02-28$13.09 – $15.0512 plans$128$422
St Clare HospitalLakewoodFile dated 2026-02-28$13.09 – $15.0512 plans$122$422
St Elizabeth HospitalEnumclawFile dated 2026-02-28$13.09 – $15.0512 plans$149$422
St Francis Community HospitalFederal WayFile dated 2026-02-28$13.09 – $15.0512 plans$133$422
St Joseph Medical CenterTacomaFile dated 2026-02-28$13.09 – $15.0512 plans$140$422
St Michael Medical CenterSilverdaleFile dated 2026-02-28$13.09 – $14.1410 plans$186$422
Swedish Edmonds HospitalEdmondsFile dated 2026-04-01$13.48 – $14.406 plans$84.48 – $91.68$176 – $191
Swedish IssaquahIssaquahFile dated 2026-04-01$13.48 – $14.406 plans$84.48 – $91.68$176 – $191
Swedish Medical CenterSeattleFile dated 2026-04-01$13.48 – $14.406 plans$84.48 – $91.68$176 – $191
Swedish Medical Center / Cherry HillSeattleFile dated 2026-04-01$13.48 – $14.406 plans$84.48 – $91.68$176 – $191
Tacoma General Allenmore HospitalTacomaFile dated 2026-08-27$12.83 – $14.117 plans$26.00$65.00
University of Washington Medical CtrSeattleFile dated 2026-04-01$13.09 – $14.405 plans$137$196
Virginia Mason Medical CenterSeattle$9.16 – $13.749 plans$60.69$119
WhidbeyHealth Medical CenterCoupeville—$101$101
Yakima Valley MemorialYakimaFile dated 2026-08-27$13.74 – $15.398 plans$28.80$72.00

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)
$13.09