What does code 166-4 cost?

We have parsed hospital-published rows for 166-4, but cash prices were not disclosed in every file. 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.

166-4 is the billing code hospitals use to identify "CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS" 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.

166-4

APR-DRG

CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS

Verified from hospital fileNot a bill estimate

iDirect answer

Based on the latest published hospital price files, code 166-4 (CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS) appears at 9 hospitals. 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

Compare 166-4 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.

10 prices shown.

Service	Hospital	Code	List price	Cash price	Negotiated range	Allowed (median)
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Loyola University Medical Center	166-4 APR-DRG	—	—	$40,629 – $40,629	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Ann & Robert H. Lurie Children's Hospital of Chicago	166-4 APR-DRG	—	—	$900 – $44,692	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Gundersen Lutheran Medical Center	166-4 APR-DRG	—	—	$32,983 – $125,828	—
CORONARY BYPASS W/O AMI OR COMPLEX PDX Inpatient	Gundersen Lutheran Medical Center	166-4 APR-DRG	—	—	$32,983 – $125,828	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Henry Ford Hospital	166-4 APR-DRG	—	—	$36,647 – $39,946	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Henry Ford West Bloomfield Hospital	166-4 APR-DRG	—	—	$34,155 – $37,122	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Henry Ford Wyandotte Hospital	166-4 APR-DRG	—	—	$34,110 – $35,475	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Henry Ford Macomb Hospital	166-4 APR-DRG	—	—	$36,047 – $38,280	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	Henry Ford Jackson Hospital	166-4 APR-DRG	—	—	$34,173 – $35,881	—
CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS Inpatient	University of Missouri Health Care	166-4 APR-DRG	—	—	$80,088 – $83,122	—

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 166-4 prices

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

Loyola University Medical Center Ann & Robert H. Lurie Children's Hospital of Chicago Gundersen Lutheran Medical Center Henry Ford Hospital Henry Ford West Bloomfield Hospital Henry Ford Wyandotte Hospital Henry Ford Macomb Hospital Henry Ford Jackson Hospital University of Missouri Health Care

Code 166-4: frequently asked

What does code 166-4 cost?: We have parsed hospital-published rows for 166-4, but cash prices were not disclosed in every file. 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 166-4?: 166-4 is the billing code hospitals use to identify "CORONARY BYPASS WITHOUT AMI OR COMPLEX PRINCIPAL DIAGNOSIS" 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 166-4 by state

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