CPT 84238

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

Medicaid managed care: Rate for an Apple Health managed-care plan. Applies only to members of that plan.

Prices for CPT 84238 by hospital
HospitalMedicaid managed care rates (lowest – highest)Cash priceList price (before discounts)
Capital Medical CenterOlympiaFile dated 2026-08-27$23.87 – $35.375 plans$161$402
Cascade Valley HospitalArlington$39.50 – $89.004 plans$71.20$89.00
Deaconess Medical CenterSpokaneFile dated 2026-08-27$21.84 – $23.135 plans$161$403
EvergreenHealth Medical CenterKirkland—$61.60$77.00
Harborview Medical CenterSeattleFile dated 2026-04-01———
Highline Medical CenterBurienFile dated 2026-02-28—$61.60$202
Island HospitalAnacortes$22.54 – $24.453 plans$50.00$50.00
Kadlec Regional Medical CenterRichlandFile dated 2026-04-01———
Legacy Salmon Creek Medical CenterVancouverFile dated 2026-04-01———
Mary Bridge Children's HospitalTacomaFile dated 2026-08-27$22.59 – $24.405 plans$68.00$170
MultiCare Auburn Medical CenterAuburnFile dated 2026-08-27$22.18 – $23.965 plans$68.00$170
MultiCare Covington Medical CenterCovingtonFile dated 2026-08-27$22.18 – $23.965 plans$68.00$170
MultiCare Good Samaritan HospitalPuyallupFile dated 2026-08-27$22.70 – $24.515 plans$68.00$170
MultiCare Valley HospitalSpokane ValleyFile dated 2026-08-27$21.69 – $22.965 plans$161$403
Olympic Medical CenterPort AngelesFile dated 2026-06-24$27.92 – $30.585 plans$98.40$123
Overlake Hospital Medical Center & ClinicsBellevueFile dated 2026-04-01—$24.30$48.60
PeaceHealth Peace Island Medical CenterFriday Harbor—$94.25$145
PeaceHealth Southwest Medical CenteVancouver$38.031 plan$107$164
PeaceHealth St John Medical CenterLongview$28.52 – $38.403 plans$107$164
PeaceHealth St Joseph Medical CenterBellingham$38.402 plans$103$158
PeaceHealth United General Medical CenterSedro Woolley—$99.45$153
Prov Sacred HRT Med Ctr & Childs Hosp.SpokaneFile dated 2026-04-01—$203 – $244$290 – $349
Providence Centralia HospitalCentraliaFile dated 2026-04-01—$20.28$39.00
Providence Holy Family HospitalSpokaneFile dated 2026-04-01—$193$276
Providence Mount Carmel HospitalColvilleFile dated 2026-04-01—$144 – $188$206 – $268
Providence Regional Medical Center EverettEverettFile dated 2026-04-01—$232$447
Providence St Joseph HospitalChewelahFile dated 2026-04-01—$139 – $179$198 – $256
Providence St Mary Medical CenterWalla WallaFile dated 2026-04-01—$37.80$54.00
Providence St Peter HospitalOlympiaFile dated 2026-04-01—$20.28$39.00
Seattle Children's HospitalSeattle$355 – $44812 plans$1,379$1,379
Skagit Valley HospitalMount Vernon$4.491 plan$114$143
St Anthony HospitalGig HarborFile dated 2026-02-28—$61.35$202
St Clare HospitalLakewoodFile dated 2026-02-28—$58.15$202
St Elizabeth HospitalEnumclawFile dated 2026-02-28$34.30 – $41.765 plans$71.28$202
St Francis Community HospitalFederal WayFile dated 2026-02-28—$63.31$202
St Joseph Medical CenterTacomaFile dated 2026-02-28—$66.81$202
St Michael Medical CenterSilverdaleFile dated 2026-02-28—$89.03$202
Swedish Edmonds HospitalEdmondsFile dated 2026-04-01—$215$447
Swedish IssaquahIssaquahFile dated 2026-04-01—$215$447
Swedish Medical CenterSeattleFile dated 2026-04-01—$215$447
Swedish Medical Center / Cherry HillSeattleFile dated 2026-04-01—$215$447
Tacoma General Allenmore HospitalTacomaFile dated 2026-08-27$22.715 plans$68.00$170
Three Rivers HospitalBrewster$65.101 plan$93.00$93.00
University of Washington Medical CtrSeattleFile dated 2026-04-01———
Virginia Mason Medical CenterSeattle—$125$246
WhidbeyHealth Medical CenterCoupeville—$167 – $193$167 – $193
Yakima Valley MemorialYakimaFile dated 2026-08-27$21.70 – $25.215 plans——

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)
$36.57