What does code 86331 cost?

Across the published hospital price files, the disclosed cash price for 86331 ranges from $12.60 to $143. This is public hospital price transparency data, not a guaranteed estimate of your bill.

Will this be my final bill?

Actual patient responsibility may vary based on your insurance plan, deductible, coinsurance, network status, diagnosis, setting, bundled services, clinical circumstances, and hospital billing practices.

86331 is the billing code hospitals use to identify "Immunodiffuseion Ouchterlony, Ref" on their published price files. We use it to line up the same service across different hospitals.

Why do prices for this code differ between hospitals?

Each hospital sets its own prices and negotiates separately with each insurer, so the disclosed price for the same code can vary widely from one hospital to another — and even between plans at a single hospital. Comparing the published figures is what this page is for; a difference does not by itself mean one hospital is better or worse.

What this page is not

It is not a quote, a guarantee, or medical advice. It shows what hospitals have published for this code, so you can compare and ask informed questions — your actual cost depends on your insurance, the exact services performed, and the care setting.

86331

CPT

Immunodiffuseion Ouchterlony, Ref

Verified from hospital fileNot a bill estimate

iDirect answer

Based on the latest published hospital price files, code 86331 (Immunodiffuseion Ouchterlony, Ref) appears at 37 hospitals with disclosed cash prices from $12.60 to $143. This is public hospital price transparency data, not a guaranteed estimate of your bill.

Published-price availability

hospitals publish a price

list this service without a published price

Cash

List

Negotiated

Allowed

A blank price (“—”) means a hospital names this service but did not publish a dollar amount — it is not a free service or a $0 price.

Compare 86331 prices

Filter by hospital, city, setting, or payer — the summary and charts update with your filters.

Based on hospital-published prices verified from each hospital’s own file. Coverage expands as data is verified.

Published cash prices for code 86331 vary by about 11× across the 35 hospitals with disclosed prices here — from $12.60 to $143. Shopping around can matter.

Hospitals

Prices shown

$12.60

Lowest cash

$143

Highest cash

code 86331 cash price50 disclosed · 35 hospitals

$12.60median ~$60.00$143

Lowest cash price by hospital

Providence Cedars-Sinai Tarzana Medical Center$12.60
Stanford Health Care$14.40
Stanford Health Care Tri-Valley$14.40
Texas Health Center for Diagnostics and Surgery Plano$15.00
Deaconess Gibson Hospital$22.26
Froedtert Menomonee Falls Hospital$24.20

Cash price by city

Reflects your current filters.

Cash price by city$12.60 – $34.98

Tarzana · 1 hospital$12.60
Stanford · 1 hospital$14.40
Pleasanton · 1 hospital$14.40
Plano · 1 hospital$15.00–$30.15
Princeton · 1 hospital$22.26–$34.98
Menomonee Falls · 1 hospital$24.20–$28.05

54 prices shown.

Service	Hospital	Code	List price	Cash price	Negotiated range	Allowed (median)
Immunodiffuseion Ouchterlony, Ref Inpatient	Carle Foundation Hospital	86331 CPT	$67.00	$67.00	$6.70 – $44.29	—
HC IMMUNODIFFUSION GEL EACH Inpatient & outpatient	Endeavor Health Edward Hospital	86331 HCPCS	$133	$133	—	—
Immunodiffusion ouchterlony Outpatient	Endeavor Health Edward Hospital	86331 HCPCS	—	—	$11.98 – $20.28	—
Immunodiffuseion Ouchterlony, Ref Inpatient	Methodist Medical Center of Illinois	86331 CPT	$67.00	$67.00	$6.70 – $44.29	—
Hc Immunodiffusion; Gel Diffusion, Qualitative, Each Antigen Or Antibody Inpatient & outpatient	University of Chicago Medical Center	86331 HCPCS	—	—	—	—
Immunodiffusion ouchterlony Outpatient	University of Chicago Medical Center	86331 HCPCS	—	—	—	—
Immunodiffuseion Ouchterlony, Ref Inpatient	Carle BroMenn Medical Center	86331 CPT	$67.00	$67.00	$6.70 – $44.29	—
GEL DIFFUSION QUALITATIVE Outpatient	Advocate Illinois Masonic Medical Center	86331 CPT	$130	$65.00	$11.98 – $106	—
HB R HYPERSENSITIVITY PNEUMONITIS (P) Inpatient & outpatient	Endeavor Health Swedish Hospital	86331 HCPCS	$143	$143	—	—
GEL DIFFUSION QUALITATIVE Outpatient	Advocate Condell Medical Center	86331 CPT	$130	$65.00	$11.98 – $104	—
GEL DIFFUSION QUALITATIVE Outpatient	Advocate Good Samaritan Hospital	86331 CPT	$130	$65.00	$11.98 – $104	—
GEL DIFFUSION QUALITATIVE Outpatient	Advocate South Suburban Hospital	86331 CPT	$130	$65.00	$11.98 – $127	—
HC HYPERSEN, IMMUNODIFFUSION, QUALITATIVE EA AG/ANTBDY Outpatient	Froedtert Hospital	86331 CPT	$45.00	$24.75	$11.65 – $59.90	—
HC ASPERGILLUS ANTIGEN, IMMUNODIFFUSN, GEL DIFFUSN, OUCHTERLONY, EA AG/AB Outpatient	Froedtert Hospital	86331 CPT	$146	$80.30	$11.65 – $126	—
HC HY PIGEON SERUM AB, IMMUNODIFFUSN, GEL DIFFUSN, OUCHTERLONY, EA AG/AB Outpatient	Froedtert Menomonee Falls Hospital	86331 CPT	$51.00	$28.05	$11.98 – $59.90	—
HC HYPERSEN, IMMUNODIFFUSION, QUALITATIVE EA AG/ANTBDY Outpatient	Froedtert Menomonee Falls Hospital	86331 CPT	$44.00	$24.20	$11.98 – $59.90	—
GEL DIFFUSION QUALITATIVE Inpatient	Aurora BayCare Medical Center	86331 CPT	$120	$60.00	$72.00 – $102	—
GEL DIFFUSION QUALITATIVE Inpatient	Aurora Medical Center Burlington	86331 CPT	$120	$60.00	$72.00 – $102	—
Aspergillus IgG Precipitins Panel Inpatient	Munson Healthcare Charlevoix Hospital	86331 CPT	$93.50	$79.48	$74.80 – $93.50	—
GEL DIFFUSION QUALITATIVE Inpatient	Aurora Medical Center Bay Area	86331 CPT	$120	$60.00	$72.00 – $102	—
GEL DIFFUSION QUALITATIVE Inpatient	Aurora Medical Center Fond du Lac	86331 CPT	$120	$60.00	$72.00 – $102	—
GEL DIFFUSION QUALITATIVE Inpatient	Aurora Medical Center Grafton	86331 CPT	$120	$60.00	$72.00 – $102	—
GEL DIFFUSION QUALITATIVE Inpatient	Aurora Medical Center Kenosha	86331 CPT	$120	$60.00	$72.00 – $102	—
GEL DIFFUSION QUALITATIVE Inpatient	Aurora Lakeland Medical Center	86331 CPT	$120	$60.00	$72.00 – $102	—
HC HYPERSEN, IMMUNODIFFUSION, QUALITATIVE EA AG/ANTBDY Inpatient	Froedtert West Bend Hospital	86331 CPT	$44.00	$24.20	$26.40 – $41.80	—

How to read these prices

Cash price: The discounted self-pay price for paying directly, without insurance.
List price: The hospital’s full undiscounted charge — rarely what anyone pays.
Negotiated rate: A rate for a specific insurer and plan; your share depends on your benefits.
Allowed amount: A historical reference for what was actually allowed, where disclosed.

Hospitals that publish 86331 prices

Open a hospital to see this code in the context of its full published prices.

Carle Foundation Hospital Endeavor Health Edward Hospital Methodist Medical Center of Illinois University of Chicago Medical Center Carle BroMenn Medical Center Advocate Illinois Masonic Medical Center Endeavor Health Swedish Hospital Advocate Condell Medical Center Advocate Good Samaritan Hospital Advocate South Suburban Hospital Froedtert Hospital Froedtert Menomonee Falls Hospital Aurora BayCare Medical Center Aurora Medical Center Burlington Munson Healthcare Charlevoix Hospital Aurora Medical Center Bay Area Aurora Medical Center Fond du Lac Aurora Medical Center Grafton Aurora Medical Center Kenosha Aurora Lakeland Medical Center Froedtert West Bend Hospital Kalkaska Memorial Health Center Munson Healthcare Cadillac Munson Medical Center Deaconess Gibson Hospital Deaconess Union County Hospital The Women's Hospital Deaconess Illinois Medical Center Providence Alaska Medical Center Providence Kodiak Island Medical Center Stanford Health Care Stanford Health Care Tri-Valley Providence Seward Hospital Providence Valdez Medical Center Providence Cedars-Sinai Tarzana Medical Center Texas Health Center for Diagnostics and Surgery Plano Providence St Joseph Medical Center

Code 86331: frequently asked

What does code 86331 cost?: Across the published hospital price files, the disclosed cash price for 86331 ranges from $12.60 to $143. This is public hospital price transparency data, not a guaranteed estimate of your bill.
Will this be my final bill?: Actual patient responsibility may vary based on your insurance plan, deductible, coinsurance, network status, diagnosis, setting, bundled services, clinical circumstances, and hospital billing practices.
What is code 86331?: 86331 is the billing code hospitals use to identify "Immunodiffuseion Ouchterlony, Ref" on their published price files. We use it to line up the same service across different hospitals.
Why do prices for this code differ between hospitals?: Each hospital sets its own prices and negotiates separately with each insurer, so the disclosed price for the same code can vary widely from one hospital to another — and even between plans at a single hospital. Comparing the published figures is what this page is for; a difference does not by itself mean one hospital is better or worse.
What this page is not: It is not a quote, a guarantee, or medical advice. It shows what hospitals have published for this code, so you can compare and ask informed questions — your actual cost depends on your insurance, the exact services performed, and the care setting.

All CPT / HCPCS codes Browse hospitals How to read this data

Hospitals publishing code 86331 by state

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