Catch the Denial Before You Hit Submit
Guard reads the claim screen you are on and checks every code against 1.7 million NCCI edits, unit limits, diagnosis conflicts, prior auth rules, and your payer's filing deadline. In one second, before the claim goes out, while it is still free to fix.
1.3MB download. No account needed. Claim data never leaves your browser.
Fixing a Claim Costs Nothing. Appealing a Denial Costs $48.
Most denials are not judgment calls. They are bundling edits, unit caps, deleted codes, and missed auth requirements: rules that were published months before the claim was created. A biller who could see those rules at submission time would never trip them. That is the whole product. Guard puts the rule book on the screen where the claim is, the moment it matters.
What Guard Checks
Built from current CMS files and the same payer knowledge base our denial agent works from.
NCCI bundling edits
1.7 million active procedure-to-procedure pairs from the current CMS quarter. Guard knows which pairs never pay together and which need modifier 59 or an X modifier, and tells you which line to fix.
Unit limits (MUE)
Bill 3 units of a code Medicare caps at 2 and the extra units deny automatically. Guard checks every line against the practitioner MUE file.
Add-on code rules
Add-on codes never pay without their primary procedure on the same claim. Guard knows all 258 add-on relationships and flags orphans before the payer does.
ICD-10 specificity and conflicts
Category headers that are not billable, codes that changed this fiscal year, and Excludes1 pairs that can never appear on the same claim.
Prior authorization flags
Payer-specific auth requirements by CPT code, including the auth vendor to call. Billing without an auth number on file is a near-certain CO-197.
Timely filing countdown
Guard knows each payer's filing window, including state overrides, computes the days remaining from the date of service, and tells you when a claim has to go out today.
Nothing is transmitted
The entire rule set ships inside the extension. Scanning and checking happen in your browser's memory. No server sees your codes, your patients, or your payers. There is nothing to BAA because nothing leaves the machine.
Works where you work
No integration, no API keys, no IT ticket. Guard reads the claim screen in front of you: PracticeQ, Claim.MD, clearinghouse portals, any web-based system. Or type the codes in directly.
Always current
NCCI edits change quarterly. ICD-10 changes every October. Payer rules change whenever payers feel like it. Subscribers get a fresh rule pack every month, built from the same knowledge base our denial agent learns from.
Install in Two Minutes
Guard is in pilot, so installation is manual until our Chrome Web Store listing is live. Four steps, no account, free.
Download and extract
Grab the ZIP below and extract it somewhere permanent on your machine.
Open chrome://extensions
Type it in the address bar, then switch on Developer mode in the top right corner.
Load unpacked
Click Load unpacked and select the extracted folder. The Guard icon appears in your toolbar.
Scan a claim screen
Open any claim in your billing system, click the Guard icon, and hit Scan this page.
Questions or a billing system we should support next? Write to hello@denialzero.com.
Free Now. $39 a Seat Later.
Guard is free for every pilot practice. At launch it is $39 per seat per month: unlimited checks and a monthly rule pack update. The average denied claim costs $48 to rework and many never get reworked at all. One prevented denial pays for the month, and a busy biller prevents several a day.