Beta Now Open

Stop Claim
Denials Before
They Happen.

Clinical-grade audit tools built by a CPC-certified surgery auditor. Real NCCI rules, real global period logic โ€” not guesswork. Defend every modifier decision with downloadable audit evidence.

5.2M
NCCI Rules
17K
Global Periods
<10s
Batch Audit
93ร—
ROI vs Manual
NCCI Engine Active
Same-Day Audit
27447
99213
task_alt Modifier 25 Required
NCCI: Indicator 1

E/M service (99213) on same day as major procedure (27447 โ€” 90-day global). Append -25 to E/M only. Document separately identifiable condition.

MUE Units: OK
download Export Audit Report
27447
90-day global
Mod -25
on E/M code
Payable
with modifier
> Batch audit complete: 847 claims
> Modifiers validated: 1,203
> Denials prevented: 38
> _
SCROLL keyboard_arrow_down
cancel Manual modifier lookup: 45 min/claim
check_circle DenialStop audit: <30 seconds
savings Average savings: $1,400/mo per coder
verified Built by CPC-certified auditor
Clinical Suite v2.0

Three Tools. One Workflow.

Everything a billing professional needs to audit modifiers, catch bundling errors, and document appeals โ€” in one place.

calendar_clock

Global Period Calculator

Enter surgery date + current date. Get instant modifier recommendation: 24, 58, 78, or 79. Zero guesswork on post-op windows.

check_circle 0 / 10 / 90-day global logic
check_circle Modifier 24, 58, 78, 79 covered
check_circle 17K CMS global period codes
FREE ยท 5/day no login ยท 15/day free account
rule

MUE Unit Auditor

Validate billed units against CMS Medically Unlikely Edits before submitting. Catch unit errors that trigger automatic denials.

check_circle 15K MUE limits loaded
check_circle Flag over-billed units instantly
check_circle Quarterly CMS updates
FREE ยท 5/day no login ยท 15/day free account
Workflow

From Claim to Confidence in 3 Steps

upload_file
STEP 01

Upload Your Claims

Paste CPT codes or upload a CSV batch. Works for single-claim checks or bulk audits up to 10K rows.

hub
STEP 02

Engine Runs the Audit

NCCI rules, global periods, and MUE limits checked simultaneously. Results in under 10 seconds.

description
STEP 03

Export Audit Evidence

Download a payer-ready audit report. Modifier justifications, NCCI references, and CMS documentation included.

Why DenialStop

Built Different.

Feature
DenialStop
Codify (AAPC)
CMS Free Tools
Pricing

Simple. Transparent. Worth It.

Core tools are free. Pay only when you need batch power.

Free
$0
Forever. No credit card.
check_circleAll 3 tools โ€” 15 checks/day
check_circleNCCI Multi (9 CPT) โ€” 5/day
check_circleLogin required after 5 free checks
remove_circleBatch CSV upload
remove_circleAudit history
Practice
$119
/mo
For billing teams & practices.
check_circleEverything in Pro
check_circleUnlimited checks/day โ€” all tools
check_circleBatch audit โ€” 10,000 rows/month
check_circle3 named user seats included
check_circleEHR-ready CSV export
check_circlePriority support
Beta Access Open

Get Early Access

Join the beta. Free Pro access during testing. Be among the first coders to stop denials with clinical-grade audit tools.