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Every billing code / Lab and other tests / General Laboratory

CPT 83520

Immunoassay

Current code52 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.

HospitalCommercial insurance rates (lowest – highest)Cash priceList price (before discounts)
BHC Fairfax HospitalKirkland$57.00 – $97.502 plans$150$150
Capital Medical CenterOlympiaFile dated 2026-08-27$17.27 – $18820 plans$28.00 – $88.40$70.00 – $221
Cascade Medical CenterLeavenworth$15.54 – $1662 plans$44.80 – $211$56.00 – $264
Cascade Valley HospitalArlington$24.57 – $3,00010 plans$231$289
Coulee Medical CenterGrand Coulee—$164 – $707$183 – $785
Deaconess Medical CenterSpokaneFile dated 2026-08-27$17.27 – $11316 plans$62.00$155
EvergreenHealth Medical CenterKirkland$9.28 – $59028 plans$23.20 – $507$29.00 – $634
EvergreenHealth MonroeMonroe$20.72 – $59017 plans$109 – $507$136 – $634
Harborview Medical CenterSeattleFile dated 2026-04-01$25.90 – $53.548 plans$12.60 – $512$18.00 – $731
Highline Medical CenterBurienFile dated 2026-02-28$18.13 – $19118 plans$64.68$212
Island HospitalAnacortes$17.27 – $40417 plans$53.10 – $425$53.10 – $425
Kadlec Regional Medical CenterRichlandFile dated 2026-04-01$18.45 – $67.537 plans$116 – $125$166 – $179
Legacy Salmon Creek Medical CenterVancouverFile dated 2026-04-01$32.29 – $46.487 plans——
Mary Bridge Children's HospitalTacomaFile dated 2026-08-27$17.27 – $13319 plans$28.00$70.00
MultiCare Auburn Medical CenterAuburnFile dated 2026-08-27$17.27 – $80.1320 plans$28.00$70.00
MultiCare Covington Medical CenterCovingtonFile dated 2026-08-27$17.27 – $80.1320 plans$28.00$70.00
MultiCare Good Samaritan HospitalPuyallupFile dated 2026-08-27$17.27 – $80.1320 plans$28.00$70.00
MultiCare Valley HospitalSpokane ValleyFile dated 2026-08-27$17.27 – $11216 plans$62.00$155
Olympic Medical CenterPort AngelesFile dated 2026-06-24$30.74 – $55.006 plans$44.00$55.00
Overlake Hospital Medical Center & ClinicsBellevueFile dated 2026-04-01$16.41 – $16213 plans$17.46 – $253$34.92 – $506
PeaceHealth Peace Island Medical CenterFriday Harbor—$38.35$59.00
PeaceHealth Southwest Medical CenteVancouver$6.91 – $56.037 plans$174 – $179$268 – $276
PeaceHealth St John Medical CenterLongview$6.91 – $99.375 plans$200 – $206$308 – $317
PeaceHealth St Joseph Medical CenterBellingham$20.72 – $33.312 plans$155 – $452$239 – $696
PeaceHealth United General Medical CenterSedro Woolley$27.111 plan$114$175
Prov Sacred HRT Med Ctr & Childs Hosp.SpokaneFile dated 2026-04-01$20.72 – $10211 plans$30.80 – $383$44.00 – $547
Providence Centralia HospitalCentraliaFile dated 2026-04-01$29.19 – $1627 plans$20.80 – $408$40.00 – $784
Providence Holy Family HospitalSpokaneFile dated 2026-04-01$20.72 – $73.688 plans$28.00 – $385$40.00 – $550
Providence Mount Carmel HospitalColvilleFile dated 2026-04-01—$52.50 – $563$75.00 – $804
Providence Regional Medical Center EverettEverettFile dated 2026-04-01$17.27 – $11211 plans$95.16 – $101$183 – $195
Providence St Joseph HospitalChewelahFile dated 2026-04-01—$39.20 – $249$56.00 – $356
Providence St Mary Medical CenterWalla WallaFile dated 2026-04-01$27.63 – $1125 plans$19.60 – $565$28.00 – $807
Providence St Peter HospitalOlympiaFile dated 2026-04-01$14.68 – $96.7110 plans$20.80 – $408$40.00 – $784
Seattle Children's HospitalSeattle$20.63 – $685at least 98 plans$38.20 – $714$38.20 – $714
Skagit Valley HospitalMount Vernon$20.72 – $33310 plans$281$351
St Anthony HospitalGig HarborFile dated 2026-02-28$18.13 – $15917 plans$64.43$212
St Clare HospitalLakewoodFile dated 2026-02-28$18.13 – $15917 plans$61.06$212
St Elizabeth HospitalEnumclawFile dated 2026-02-28$18.13 – $19116 plans$74.85$212
St Francis Community HospitalFederal WayFile dated 2026-02-28$18.13 – $15917 plans$66.48$212
St Joseph Medical CenterTacomaFile dated 2026-02-28$18.13 – $15917 plans$70.16$212
St Michael Medical CenterSilverdaleFile dated 2026-02-28$18.13 – $19117 plans$93.49$212
Swedish Edmonds HospitalEdmondsFile dated 2026-04-01$17.27 – $86.3512 plans$93.12 – $181$194 – $377
Swedish IssaquahIssaquahFile dated 2026-04-01$15.54 – $86.3512 plans$86.88 – $93.60$181 – $195
Swedish Medical CenterSeattleFile dated 2026-04-01$15.54 – $86.3513 plans$86.88 – $93.60$181 – $195
Swedish Medical Center / Cherry HillSeattleFile dated 2026-04-01$15.54 – $79.4413 plans$86.88 – $93.60$181 – $195
Tacoma General Allenmore HospitalTacomaFile dated 2026-08-27$17.27 – $80.1320 plans$28.00$70.00
Three Rivers HospitalBrewster—$93.00 – $235$93.00 – $235
Trios HealthKennewick——$362
University of Washington Medical CtrSeattleFile dated 2026-04-01$20.72 – $2818 plans$12.60 – $512$18.00 – $731
Virginia Mason Medical CenterSeattle$17.27 – $21410 plans$136$267
WhidbeyHealth Medical CenterCoupeville—$38.00 – $695$38.00 – $695
Yakima Valley MemorialYakimaFile dated 2026-08-27$17.87 – $13819 plans$64.40$161

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)
$17.27