Interventional Pain Management & Anesthesia Billing Audit
Eliminate facet joint injection unbundling losses (64490–64495), recover denied fluoroscopic guidance (77002), and stop LCD frequency cutbacks on epidural injections.
Interventional pain management procedures are under the strictest Local Coverage Determination (LCD) surveillance in America. Medicare MACs and commercial payers enforce stringent prior authorization rules, strict 4-level injection caps per year, and automated denials on bilateral modifiers (Modifier 50). Furthermore, billing fluoroscopic guidance (CPT 77002) without archiving radiological dye-spread imaging invites audit clawbacks. Our interventional pain audit team audits procedural notes, radiation fluoroscopy logs, and LCD compliance to defend your revenue.
Audit red flags
- Bilateral facet injections billed on two separate claim lines with RT/LT instead of one line with Modifier 50.
- Radiofrequency ablation (64635) denied because diagnostic medial branch block records were not attached.
- Sedation anesthesia units billed by the operating interventionalist rather than a qualified second provider.
- Missing pain visual analog scale (VAS) score improvements documented between baseline and follow-up.
Audit action plan
- 1. LCD / NCD Policy Cross-Check — Benchmark procedural indications against your regional Medicare MAC LCD (e.g., Novitas L34892 or Noridian L38765) to ensure pre-requisite physical therapy notes exist.
- 2. Bilateral Modifier Optimization — Configure billing software to format bilateral spine procedures according to payer-specific rules (100% + 50% vs single line 150% with Modifier 50).
- 3. Image Archive Audit in PACS — Audit PACs imaging servers to ensure permanent spot films showing contrast spread are saved for every single billed spinal intervention.
Codes reviewed
- 64490 / 64491 / 64492 — Cervical / Thoracic Facet Joint Injection (Levels 1, 2, and 3)
- 62323 — Lumbar / Sacral Epidural Steroid Injection (with Fluoroscopy)
- 64635 / 64636 — Lumbar Radiofrequency Neurotomy / Ablation
- 77002 — Fluoroscopic Guidance for Needle Placement
Frequently asked questions
How many epidural steroid injections does Medicare cover per year?
Most Medicare Administrative Contractors (MACs) cap epidural steroid injections at four (4) therapeutic sessions per spinal region in a rolling 12-month period, provided each session yields documented relief of at least 50% for a minimum duration.
Can fluoroscopy (77002) be billed separately with CPT 62323?
No. The code descriptor for CPT 62323 specifically states "with fluoroscopic or CT guidance." Billing 77002 with 62323 is an NCCI violation and will be auto-denied under CO-97.