P2P Call Guide

How to Win a P2P Call for PET/CT Scan Denied by MA Plans

Payer-specific strategy, medical necessity arguments, and the exact phrases to use when Medicare Advantage denies PET/CT Scan (CPT 78816, 78815, 78814).

Why MA Plans Denies PET/CT Scan

Staging not appropriate for tumor type

Follow-up scan too soon after treatment

Diagnosis does not meet NCD criteria

Know Medicare Advantage's Criteria

Medicare Advantage plans must cover all services covered by Original Medicare (CMS NCDs and LCDs) but may require prior auth. Plans use various criteria including InterQual, MCG, and proprietary guidelines.

Key policies to know:

  • Must cover all services covered by Original Medicare
  • Can require prior authorization not required by Original Medicare
  • CMS NCDs and LCDs serve as coverage floor
  • Organization determinations must be issued within 14 days (72 hours for expedited)

MA Plans's Specific Approach to PET/CT Scan

Applicable Policy

CMS NCD 220.6.17 (FDG PET for Oncology)

How MA Plans Typically Denies This

MA plans must cover all PET indications covered by the CMS NCD. Some MA plans require prior auth even for NCD-covered indications, which is allowed, but they cannot deny if criteria are met.

Your Strategy for This Payer

This is your strongest argument: CMS NCD 220.6.17 covers virtually all oncologic PET indications. If your indication is covered, the MA plan has no basis for denial.

Key Phrase to Use on the Call

"This PET/CT is covered under CMS NCD 220.6.17 for [specific indication]. The MA plan is required to cover all services covered by Original Medicare, and this meets NCD criteria."

Building Your Medical Necessity Argument

Reference the specific NCD indication being met

Document how PET results will change management

Note prior imaging results that are insufficient

Cite NCCN guideline recommendation for PET at this stage

P2P Call Tips for MA Plans

Cite the relevant CMS NCD or LCD -- MA plans cannot deny what Medicare covers

If the service has a CMS NCD, that trumps the MA plan's internal criteria

Reference CMS regulations on MA coverage obligations

Request expedited determination if clinical urgency exists

Guidelines to Reference

  • CMS National Coverage Determination for FDG PET
  • NCCN Guidelines by cancer type

Relevant CPT Codes

CPT 78816CPT 78815CPT 78814

Specialty: Oncology / Pulmonology

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