Fixing 38% Underpayment in Nerve Block & Epidural Claims in Pain Management Billing
A pain management practice in Mississippi experienced consistent underpayments in nerve block and epidural claims, despite submitting clean and compliant claims. Reimbursement for key procedures such as 64483, 64484, and 62323 was frequently issued below contracted rates.
Our review identified that 38% of these claims were underpaid, primarily due to incorrect MPR application on add-on code 64484, bundling of fluoroscopy (77003), and modifier-related reductions under NCCI edits. Since these claims were processed and partially paid, the discrepancies were not initially identified, resulting in ongoing revenue loss.
Client Overview
Location: Mississippi, USA
Specialty: Pain Management (Nerve Block & Epidural Procedures)
Providers: 3
Monthly Interventional Claims: ~420
Underpaid Claims (90 Days): 312
Financial Impact Identified: $64,700
Key CPT Codes Reviewed:
64483 – Transforaminal Epidural Injection
64484 – Each Additional Level (Add-on)
62323 – Interlaminar Epidural Injection
77003 – Fluoroscopic Guidance
Customer Situation
When the client engaged us, they faced inconsistent collections from nerve block and epidural procedures despite steady volume.
Our analysis of ERA and EOB data showed:
Claims were processed but underpaid at a high frequency
No validation of expected vs. actual reimbursement for key CPTs
Procedures like 64483, 64484, and 62323 were reimbursed below contracted rates
Technical Findings from Our Audit
MPR incorrectly applied to 64484 (add-on code)
77003 (fluoroscopy) bundled with epidural procedures
Missing -59 / -XU modifiers, causing NCCI-related reductions
Bilateral injections billed without -RT/-LT or -50
Payments issued using non-contracted payer rates
These issues were specific to nerve block and epidural claims and consistently resulted in underpayments across multiple payers.
Key Challenges in Nerve Block & Epidural Billing
We identified multiple gaps in the practice’s billing workflow:
Add-on code 64484 was reimbursed below allowable due to incorrect MPR application.
Fluoroscopy (77003) was bundled with procedures like 62323 and 64483, reducing reimbursement.
Modifiers -59 / -XU were not consistently applied, causing NCCI-related bundling and reduced payments.
Bilateral procedures were billed without -RT/-LT or -50, leading to lower reimbursement.
No system existed to compare contracted vs. actual payments, so underpayments were not identified.
Because these gaps were not addressed, payers continued to reimburse below allowable rates.
Over a 90-day review period:
38% of claims were underpaid
312 claims impacted
$64,700 in revenue leakage identified
Solution
We implemented a targeted underpayment identification and recovery strategy, focused specifically on nerve block and epidural claims:
1. Correction of MPR Application on Add-On Code (64484)
We identified that 64484 was incorrectly subjected to MPR. Affected claims were audited against payer guidelines and corrected to ensure full allowable reimbursement for add-on services.
2. Fluoroscopy (77003) Unbundling Based on Payer Policy
We reviewed payer policies for 77003 and identified cases where it was incorrectly bundled with 62323 and 64483. Eligible claims were resubmitted to secure separate reimbursement where allowed.
3. Modifier-Level Coding Accuracy Implementation
We corrected modifier usage to align with NCCI edits:
-59 / -XU for distinct services
-50 / RT / LT for bilateral procedures
This ensured accurate reimbursement for multi-procedure scenarios.
4. CPT-Level Reimbursement Validation System
We implemented a system to compare contracted vs. actual payments at CPT level, enabling underpayment identification within 48 hours of ERA posting, especially for 64483, 64484, and 62323.
5. Underpayment Identification & Appeals Workflow
We established a workflow to:
Flag underpaid claims
Submit appeals with contract validation, coding justification, and NCCI references
Track recovery outcomes
Results
Following our implementation, we achieved:
Recovered $64,700 from underpaid nerve block and epidural claims
Reduced underpayment rate from 38% to 9% within 10–12 weeks
Improved collections by 26% over the following quarter
Achieved consistent and accurate reimbursement for add-on code 64484
Reduced underpayment detection to within 48 hours of ERA posting
These improvements strengthened reimbursement accuracy for nerve block and epidural procedures and established a proactive system to identify and prevent underpayments in future claims.
Performance Transformation: Before vs After
We eliminated underpayments and improved reimbursement accuracy through targeted billing corrections for nerve block and epidural procedures.
If your pain management practice is getting paid but the numbers still don’t add up, there may be gaps in how nerve block and epidural claims are processed and reimbursed.
Request a complimentary billing review to identify underpaid claims and recover missed revenue.
Request a Billing Quote & Book a Consultation
Underpayments in pain management billing, especially for nerve block and epidural claims, can reduce your revenue even when claims are approved and paid. Identifying these gaps is critical to improving reimbursement accuracy and collections.
Fill out the form below to request a billing quote and schedule a consultation to review your pain management billing performance.
