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HCPCS G0121 · HCPCS Level II

Colon ca scrn not hi rsk ind

By Elena Vasquez , Medical Billing Research Lead · ·
Data from CMS files published FY 2024 CMS IPPS. Refreshed weekly.
About the analyst

Elena Vasquez leads hospital billing pattern analysis at BillRazor Research. She focuses on identifying overcharges, markup outliers, and patient advocacy strategies. Expertise: hospital billing patterns, overcharge analysis, patient advocacy.

Medicare + CMS benchmark data
Publicly available pricing
Updated 2026-04-03
Rate comparison — Colon ca scrn not hi rsk ind
Non-facility$99Medicare facility$166ASC rate$489Hospital outpatient$912$813 difference between lowest and highest rate
$166
Medicare facility rate
$99
Non-facility rate
$489
ASC rate
$422
ASC vs hospital gap

Understanding Colon ca scrn not hi rsk ind costs

Colon ca scrn not hi rsk ind (HCPCS code G0121) is a medical procedure . Medicare reimburses this procedure at $166 in a facility setting and $99 in a non-facility (office) setting. Hospital chargemaster prices for this procedure are typically 2x to 5x above Medicare rates.

Ambulatory Surgery Centers (ASCs) offer a lower-cost alternative at $489 — a potential savings of $-324 compared to the hospital outpatient rate. The actual amount you owe depends on your insurance plan, deductible status, and whether the provider is in-network. Uninsured patients should ask about the hospital's financial assistance policy — nonprofit hospitals are required to offer charity care under Section 501(r) of the Internal Revenue Code.

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Compare by care setting
The same procedure costs different amounts depending on where you receive care.
$912
Hospital Outpatient rate for Colon ca scrn not hi rsk ind
Medicare facility benchmark: $166

Common billing errors for Colon ca scrn not hi rsk ind

Billing errors for Colon ca scrn not hi rsk ind include: upcoding to a higher-complexity code, unbundling components that should be included in a single charge, duplicate charges for the same service, charging facility fees when the procedure was performed in an office setting, and billing for services not actually rendered. If you see CPT G0121 on your bill alongside related codes, verify they are not already bundled per NCCI (National Correct Coding Initiative) edits.

What to check on your bill

Request an itemized bill and verify: (1) the CPT/HCPCS code matches the procedure actually performed, (2) the date of service is correct, (3) no duplicate line items exist for the same procedure, (4) modifier codes are appropriate (e.g., bilateral, reduced services), (5) the charge is not dramatically higher than the Medicare rate of $166, and (6) any ancillary charges (anesthesia, pathology, supplies) are reasonable and not already bundled into the primary procedure code.

Regional rate comparison — Colon ca scrn not hi rsk ind
Top 5 lowest and highest localities by Medicare facility rate
National avg $166REST OF ILLINOIS, IL$191DETROIT, MI$202QUEENS, NY$204MIAMI, FL$252CHICAGO, IL$238NYC SUBURBS/LONG ISLAND, NY$227

Facility rate

$166

National Medicare benchmark

Non-facility rate

$99

Office setting benchmark

Data sources

4

24 data points

Key insights for HCPCS G0121

ASC vs hospital outpatient savings

$422

Having this done at an ambulatory surgery center costs $489 vs $912 at a hospital outpatient

Facility vs office setting

$67 difference

Non-facility setting is less expensive for this procedure

What this procedure costs across different settings

The same procedure can cost very different amounts depending on where it's performed. These are the Medicare-allowed amounts — what hospitals actually charge can be 3-10x higher.

SettingMedicare ratevs lowest
Facility (physician office)$166+67%
Non-facility (office)$99Lowest
Outpatient (APC)$912+821%
Ambulatory surgery (ASC)$489+394%

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About this data

Rates shown are from the 2026 Medicare Physician Fee Schedule, Hospital Outpatient Prospective Payment System (OPPS), Ambulatory Surgery Center Payment System, Clinical Laboratory Fee Schedule, Durable Medical Equipment Fee Schedule, and CMS Inpatient Prospective Payment System (DRG weights). Regional adjustments use CMS Geographic Practice Cost Indices (GPCI). Hospital charges are from CMS Hospital Price Transparency machine-readable files. All data is publicly available under federal law (45 CFR Part 180).

This data is for informational purposes only and does not constitute medical or financial advice. Actual costs depend on insurance coverage, negotiated rates, and individual circumstances.

Rates shown are from the 2026 Medicare Physician Fee Schedule and CMS IPPS. BillRazor compares your bill against these data sources. See how it works →

FAQ — HCPCS Level II billing

How much does Colon ca scrn not hi rsk ind cost without insurance?
Without insurance, hospital charges for Colon ca scrn not hi rsk ind (G0121) vary widely. Medicare pays $166 for this procedure, but hospitals typically charge 2x to 5x that amount to uninsured patients. Ask the hospital for their chargemaster price and compare it to the Medicare rate. Nonprofit hospitals must offer financial assistance under Section 501(r).
Why was I charged so much for Colon ca scrn not hi rsk ind?
Hospital charges are based on their chargemaster — an internal price list that is not tied to actual costs. While Medicare reimburses $166 for this procedure, hospitals may charge $497 or more. Common reasons for high charges include facility fees, supply markups, and ancillary services billed separately. Request an itemized bill to identify specific charges you can dispute.
Can I negotiate the price of Colon ca scrn not hi rsk ind?
Yes. Hospitals routinely negotiate bills, especially for uninsured or underinsured patients. Start by requesting an itemized bill, then compare each charge against Medicare rates. You can ask for a discount, a payment plan, or financial assistance. Many hospitals will reduce the bill by 30-60% when patients ask.

Data: Federal physician fee schedules, hospital payment data, surgery center rates, lab fee schedules, and drug pricing data. FY 2024. All publicly available from federal sources.

Methodology: Facility rate applies when the procedure is performed in a hospital or ASC. Non-facility rate applies in a physician office. GPCI adjustments reflect regional cost-of-living differences.

This information is for educational purposes only and is not medical, financial, or legal advice. Actual costs depend on your insurance and provider. We recommend verifying costs directly with your provider. Full methodology · Terms of use

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