What does code 81331 cost?

Across the published hospital price files, the disclosed cash price for 81331 ranges from $337 to $1,150. 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.

81331 is the billing code hospitals use to identify "HC PRADER WILLI/ANGELMAN SYNDROME" 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.

81331

HCPCS

HC PRADER WILLI/ANGELMAN SYNDROME

Verified from hospital fileNot a bill estimate

iDirect answer

Based on the latest published hospital price files, code 81331 (HC PRADER WILLI/ANGELMAN SYNDROME) appears at 9 hospitals with disclosed cash prices from $337 to $1,150. 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 81331 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 81331 vary by about 3.4× across the 4 hospitals with disclosed prices here — from $337 to $1,150. Shopping around can matter.

Hospitals

Prices shown

$337

Lowest cash

$1,150

Highest cash

code 81331 cash price5 disclosed · 4 hospitals

$337median ~$810$1,150

Lowest cash price by hospital

Cash price by city

Reflects your current filters.

Cash price by city$337 – $1,150

Milwaukee · 1 hospital$337
Naperville · 1 hospital$524
Plano · 1 hospital$810
Anchorage · 1 hospital$1,150

14 prices shown.

Service	Hospital	Code	List price	Cash price	Negotiated range	Allowed (median)
HC PRADER WILLI/ANGELMAN SYNDROME Inpatient & outpatient	Endeavor Health Edward Hospital	81331 HCPCS	$524	$524	—	—
Snrpn/ube3a gene Outpatient	Endeavor Health Edward Hospital	81331 HCPCS	—	—	$51.07 – $86.50	—
Hc Methylation Specific Mlpa For Pws And As Inpatient & outpatient	University of Chicago Medical Center	81331 HCPCS	—	—	—	—
Hc Imprinting Center Deletion Analysis Inpatient & outpatient	University of Chicago Medical Center	81331 HCPCS	—	—	—	—
Hc Ms-Mlpa (Detects Methylation And Deletions In 15Q11- 13) Inpatient & outpatient	University of Chicago Medical Center	81331 HCPCS	—	—	—	—
Snrpn/ube3a gene Outpatient	University of Chicago Medical Center	81331 HCPCS	—	—	—	—
HC ANGELMAN/PRADER WILLI BY PCR, SNRPN-UBE3A METHYLATION ANALYSIS Outpatient	Froedtert Hospital	81331 CPT	$613	$337	$49.64 – $530	—
SNRPN/UBE3A GENE Outpatient	Aurora Medical Center Bay Area	81331 CPT	—	—	$40.86 – $179	—
SNRPN/UBE3A GENE Outpatient	Aurora Medical Center Fond du Lac	81331 CPT	—	—	$40.86 – $179	—
SNRPN/UBE3A GENE Outpatient	The Women's Hospital	81331 CPT	—	—	$20.43 – $125	—
SNRPN/UBE3A GENE Outpatient	Beacon Dowagiac	81331 CPT	—	—	$35.75 – $51.07	—
HC SNRPN/UBE3A METHYLATION ANALYSIS CDM Inpatient & outpatient	Providence Alaska Medical Center	81331 HCPCS	$1,474	$1,150	—	—
HC SNRPN/UBE3A METHYLATION ANALYSIS LAB Inpatient & outpatient	Providence Alaska Medical Center	81331 HCPCS	$1,474	$1,150	—	—
PRADER-WILLI SYNDROME REF2 Outpatient	Texas Health Center for Diagnostics and Surgery Plano	81331 CPT	$1,350	$810	$42.90 – $1,270	—

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 81331 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 Bay Area Aurora Medical Center Fond du Lac The Women's Hospital Beacon Dowagiac Providence Alaska Medical Center Texas Health Center for Diagnostics and Surgery Plano

Code 81331: frequently asked

What does code 81331 cost?: Across the published hospital price files, the disclosed cash price for 81331 ranges from $337 to $1,150. 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 81331?: 81331 is the billing code hospitals use to identify "HC PRADER WILLI/ANGELMAN SYNDROME" 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 81331 by state

Alaska hospital prices Illinois hospital prices Indiana hospital prices Michigan hospital prices Texas hospital prices Wisconsin hospital prices