What does code 81231 cost?

Across the published hospital price files, the disclosed cash price for 81231 ranges from $89.93 to $106. 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.

81231 is the billing code hospitals use to identify "Cyp3a5 gene common variants" 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.

81231

HCPCS

Cyp3a5 gene common variants

Verified from hospital fileNot a bill estimate

iDirect answer

Based on the latest published hospital price files, code 81231 (Cyp3a5 gene common variants) appears at 13 hospitals with disclosed cash prices from $89.93 to $106. 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 81231 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 81231 vary by about 18% across the 6 hospitals with disclosed prices here — from $89.93 to $106. Shopping around can matter.

Hospitals

Prices shown

$89.93

Lowest cash

$106

Highest cash

code 81231 cash price6 disclosed · 6 hospitals

$89.93median ~$97.22$106

Lowest cash price by hospital

Cash price by city

Reflects your current filters.

Cash price by city$89.93 – $106

Mequon · 1 hospital$89.93
New Berlin · 1 hospital$89.93
Oak Creek · 1 hospital$89.93
Milwaukee · 1 hospital$105
West Bend · 1 hospital$106
Manitowoc · 1 hospital$106

13 prices shown.

Service	Hospital	Code	List price	Cash price	Negotiated range	Allowed (median)
Cyp3a5 gene common variants Outpatient	Endeavor Health Edward Hospital	81231 HCPCS	—	—	$175 – $296	—
Cyp3a5 gene common variants Outpatient	University of Chicago Medical Center	81231 HCPCS	—	—	—	—
HC CYP3A5 GENE ANALYSIS COMMON VARIANTS Outpatient	Froedtert Hospital	81231 CPT	$190	$105	$57.00 – $874	—
CYP3A5 GENE COMMON VARIANTS Outpatient	Aurora Medical Center Burlington	81231 CPT	—	—	$140 – $614	—
CYP3A5 GENE COMMON VARIANTS Outpatient	Aurora Medical Center Bay Area	81231 CPT	—	—	$140 – $614	—
CYP3A5 GENE COMMON VARIANTS Outpatient	Aurora Medical Center Fond du Lac	81231 CPT	—	—	$140 – $614	—
HC CYP3A5 GENE ANALYSIS COMMON VARIANTS Inpatient	Froedtert West Bend Hospital	81231 CPT	$193	$106	$116 – $183	—
HC CYP3A5 GENE ANALYSIS COMMON VARIANTS Inpatient	Froedtert Holy Family Memorial Hospital	81231 CPT	$193	$106	$116 – $169	—
HC CYP3A5 GENE ANALYSIS COMMON VARIANTS Inpatient	Froedtert Community Hospital - Mequon	81231 CPT	$164	$89.93	$98.10 – $144	—
HC CYP3A5 GENE ANALYSIS COMMON VARIANTS Outpatient	Froedtert Community Hospital - New Berlin	81231 CPT	$164	$89.93	$65.40 – $350	—
HC CYP3A5 GENE ANALYSIS COMMON VARIANTS Inpatient	Froedtert Community Hospital - Oak Creek	81231 CPT	$164	$89.93	$98.10 – $144	—
CYP3A5 GENE COMMON VARIANTS Outpatient	The Women's Hospital	81231 CPT	—	—	$69.92 – $428	—
CYP3A5 GENE COMMON VARIANTS Outpatient	Beacon Dowagiac	81231 CPT	—	—	$122 – $175	—

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 81231 prices

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

Endeavor Health Edward Hospital University of Chicago Medical Center Froedtert Hospital Aurora Medical Center Burlington Aurora Medical Center Bay Area Aurora Medical Center Fond du Lac Froedtert West Bend Hospital Froedtert Holy Family Memorial Hospital Froedtert Community Hospital - Mequon Froedtert Community Hospital - New Berlin Froedtert Community Hospital - Oak Creek The Women's Hospital Beacon Dowagiac

Code 81231: frequently asked

What does code 81231 cost?: Across the published hospital price files, the disclosed cash price for 81231 ranges from $89.93 to $106. 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 81231?: 81231 is the billing code hospitals use to identify "Cyp3a5 gene common variants" 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.

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Hospitals publishing code 81231 by state

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