What does code 83505 cost?

Across the published hospital price files, the disclosed cash price for 83505 ranges from $105 to $250. 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.

83505 is the billing code hospitals use to identify "Assay total hydroxyproline" 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.

83505

HCPCS

Assay total hydroxyproline

Verified from hospital fileNot a bill estimate

iDirect answer

Based on the latest published hospital price files, code 83505 (Assay total hydroxyproline) appears at 8 hospitals with disclosed cash prices from $105 to $250. 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 83505 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 83505 vary by about 2.4× across the 3 hospitals with disclosed prices here — from $105 to $250. Shopping around can matter.

Hospitals

Prices shown

$105

Lowest cash

$250

Highest cash

code 83505 cash price4 disclosed · 3 hospitals

$105median ~$215$250

Lowest cash price by hospital

Cash price by city

Reflects your current filters.

Cash price by city$105 – $250

Princeton · 1 hospital$105
Chicago · 1 hospital$179
Marinette · 1 hospital$250

10 prices shown.

Service	Hospital	Code	List price	Cash price	Negotiated range	Allowed (median)
Assay total hydroxyproline Outpatient	Endeavor Health Edward Hospital	83505 HCPCS	—	—	$24.30 – $41.16	—
Hc Hydroxyproline; Total Inpatient & outpatient	University of Chicago Medical Center	83505 HCPCS	—	—	—	—
Assay total hydroxyproline Outpatient	University of Chicago Medical Center	83505 HCPCS	—	—	—	—
HB HYDROXYPROLINE TOTAL Inpatient & outpatient	Endeavor Health Swedish Hospital	83505 HCPCS	$179	$179	—	—
HYDROXYPROLINE, TOTAL Inpatient	Aurora Medical Center Bay Area	83505 CPT	$500	$250	$300 – $423	—
HYDROXYPROLINE, TOTAL Outpatient	Aurora Medical Center Bay Area	83505 CPT	$500	$250	$19.44 – $423	—
ASSAY TOTAL HYDROXYPROLINE Outpatient	Aurora Medical Center Fond du Lac	83505 CPT	—	—	$19.44 – $85.28	—
HC HYDROXYPROLINE TOTAL 24HR Inpatient	Deaconess Gibson Hospital	83505 CPT	$199	$105	$72.90 – $179	—
ASSAY TOTAL HYDROXYPROLINE Outpatient	The Women's Hospital	83505 CPT	—	—	$9.72 – $59.54	—
ASSAY TOTAL HYDROXYPROLINE Outpatient	Texas Health Center for Diagnostics and Surgery Plano	83505 CPT	—	—	$20.41 – $47.70	—

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 83505 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 Endeavor Health Swedish Hospital Aurora Medical Center Bay Area Aurora Medical Center Fond du Lac Deaconess Gibson Hospital The Women's Hospital Texas Health Center for Diagnostics and Surgery Plano

Code 83505: frequently asked

What does code 83505 cost?: Across the published hospital price files, the disclosed cash price for 83505 ranges from $105 to $250. 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 83505?: 83505 is the billing code hospitals use to identify "Assay total hydroxyproline" 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 83505 by state

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