PBM Prior Authorization Workflow for Pharmacy Techs

Understanding Pharmacy Benefit Managers

Pharmacy Benefit Managers (PBMs) are intermediary organizations that administer prescription drug benefits for health insurance plans, employers, and government programs. The three largest PBMs (CVS Caremark, Express Scripts, and OptumRx) manage prescription benefits for the vast majority of insured Americans. Understanding how PBMs operate and how to navigate their prior authorization processes is essential for pharmacy technicians working in community pharmacy settings.

PBMs determine which drugs are covered under a plan's formulary, negotiate rebates with drug manufacturers, set copay amounts, and establish utilization management criteria. Prior authorization (PA) is one of the most common utilization management tools PBMs use to control costs and ensure appropriate medication use.

What Is Prior Authorization?

Prior authorization is a requirement that the prescriber obtain approval from the patient's insurance plan before certain medications will be covered. PAs are typically required for:

• High-cost medications: Specialty drugs, brand-name drugs when generics are available, and expensive biologics
• Medications with safety concerns: Drugs that require specific monitoring, have significant side effects, or have abuse potential
• Step therapy requirements: Plans may require patients to try first-line medications before approving more expensive alternatives
• Quantity limits: Prescriptions exceeding the plan's maximum allowed quantity per fill period
• Age or gender restrictions: Some medications are only covered for specific patient populations

The Prior Authorization Workflow

Step 1: Claim Rejection

The PA process typically begins when a pharmacy submits a prescription claim electronically and receives a rejection. Common PA-related rejection codes include:

• 75 - Prior Authorization Required: The most straightforward PA rejection indicating the drug requires advance approval
• 76 - Plan Limitations Exceeded: May indicate quantity limits or age restrictions that require PA override
• 70 - Product/Service Not Covered: The drug is not on formulary. A PA or formulary exception may be possible
• MR - Mandatory Generic: A generic equivalent must be tried first, or a PA obtained for the brand

Step 2: Notification

When a PA rejection is received, the pharmacy technician should document the rejection details and inform the pharmacist. The pharmacist will review the clinical situation and determine the best course of action, which may include switching to a covered alternative, initiating the PA process, or contacting the prescriber.

Step 3: PA Initiation

If a PA is warranted, the process typically involves the prescriber's office submitting clinical documentation to the PBM. Common methods include:

• Electronic PA (ePA): Integrated into electronic health record systems, allowing prescribers to submit PA requests digitally. This is the fastest method and is increasingly the standard.
• Fax PA: PBM-specific PA forms that are faxed to the prescriber's office for completion and returned to the PBM
• Phone PA: The prescriber or their staff calls the PBM's PA line to provide clinical justification verbally
• Online portal: Many PBMs offer web portals where prescribers can submit and track PA requests

Step 4: PBM Review

The PBM reviews the submitted clinical information against their coverage criteria. Reviews are typically completed within 24 to 72 hours for non-urgent requests and within 24 hours for urgent requests. The PBM may approve the PA, deny it, or request additional information.

Step 5: Resolution

If approved, the PA authorization is loaded into the PBM system, and the pharmacy can reprocess the claim successfully. Approvals typically cover a specific time period (6 months to 1 year). If denied, the prescriber can appeal the decision or switch the patient to a covered alternative.

Pharmacy Technician Role in the PA Process

Pharmacy technicians are often the first to encounter PA rejections and play a crucial role in managing the workflow:

• Identifying PA rejections: Recognizing rejection codes that indicate PA requirements and distinguishing them from other claim issues
• Documenting rejections: Recording rejection details in the pharmacy system for tracking and follow-up
• Communicating with prescribers: Faxing PA forms to prescriber offices and following up on outstanding requests
• Patient communication: Explaining to patients that their medication requires insurance approval and providing realistic timelines
• Tracking PA status: Monitoring pending PAs and following up when approvals or denials are received
• Reprocessing claims: Once PA approval is received, resubmitting the claim for adjudication

Tips for Efficient PA Management

Experienced pharmacy technicians develop strategies for managing the PA workload efficiently:

• Maintain a PA tracking log or use pharmacy software features to monitor pending requests
• Learn the formulary preferences of common insurance plans to anticipate PA requirements
• Have PA forms readily available for frequently used PBMs
• Build relationships with prescriber office staff to facilitate communication
• Know your state's prompt PA response laws, which may require PBMs to respond within specific timeframes

PTCB Exam Preparation

The PTCB exam tests pharmacy operations knowledge, including insurance billing and prior authorization processes. Review common rejection codes, the PA workflow, and the technician's role using our practice questions and study guides.