P2P Call Guide

How to Win a P2P Call for MRI Lumbar Spine Denied by UHC

Payer-specific strategy, medical necessity arguments, and the exact phrases to use when UnitedHealthcare denies MRI Lumbar Spine (CPT 72148, 72149, 72158).

Why UHC Denies MRI Lumbar Spine

Conservative therapy not exhausted (typically 6 weeks PT required)

No red flag symptoms documented

Prior imaging not reviewed or referenced

Know UnitedHealthcare's Criteria

UHC uses InterQual criteria and their own Clinical UM Guidelines (CG series). Medical directors are typically accessible for P2P within 5 business days.

Key policies to know:

  • Requires eviCore for MSK and advanced imaging prior auth
  • Clinical UM Guidelines (CG series) are publicly available online
  • Prior auth through Optum/UHG portal
  • Known for strict step therapy requirements on biologics

UHC's Specific Approach to MRI Lumbar Spine

Applicable Policy

UHC Clinical UM Guideline CG-RAD-23 (Lumbar Spine MRI)

How UHC Typically Denies This

UHC via eviCore requires documentation of 6 weeks PT AND a trial of oral anti-inflammatories before approving lumbar MRI. They are particularly strict about imaging within the first 6 weeks of symptoms.

Your Strategy for This Payer

Pull up CG-RAD-23 before the call. UHC will approve if you can document red flag symptoms (cauda equina, progressive neuro deficit) -- these bypass the 6-week conservative care requirement entirely.

Key Phrase to Use on the Call

"This patient meets the red flag exception criteria under CG-RAD-23, which does not require a 6-week conservative trial."

Building Your Medical Necessity Argument

Document failure of 6+ weeks conservative management

Note neurological deficits (radiculopathy, motor weakness, bowel/bladder changes)

Reference progressive symptoms despite treatment

Cite red flag symptoms if present (trauma, cancer history, infection risk)

P2P Call Tips for UHC

Reference UHC's own Clinical UM Guideline number (e.g., CG-SURG-71)

UHC medical directors respond well to InterQual criteria language

Be specific about which InterQual subset applies

Have the CG policy number ready -- shows you've done your homework

Guidelines to Reference

  • ACR Appropriateness Criteria for Low Back Pain
  • NASS Evidence-Based Clinical Guidelines

Relevant CPT Codes

CPT 72148CPT 72149CPT 72158

Specialty: Orthopedics / Neurosurgery

Want the full strategy?

The P2P Playbook covers payer-specific approaches for MRI Lumbar Spine denied by UHC -- plus 15 denial objections with word-for-word responses, what reviewers are actually thinking, and the 60-second prep framework. Written by a medical director who reviewed cases for major payers.

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