What is an authorization denial?

An authorization denial occurs when the payer determines that required prior authorization, precertification, notification, or referral requirements were not met for the billed service.

Authorization denials can happen even when an authorization exists.

Common causes include:

• No authorization obtained
• Wrong CPT or service type
• Wrong provider or facility
• Authorization expired
• Insufficient approved units
• Date of service outside the approved range
• Notification completed but full authorization still required

And the reasons may also include:

• A referral from the PCP (Primary Care Provider) is missing or required.

• The rendering or billing provider is out of network with the insurance payer.

The resolution depends on the payer’s policy, referral requirements, provider network status, and the details of the actual authorization record.

• Authorization denials have multiple root causes.
• An authorization number alone does not prove coverage.
• Service, provider, location, dates, and units must match.
• Payer policy determines available appeal options.
• Out-of-network provider
• Missing PCP referral

A claim denies for no authorization even though the practice has an authorization number. Review shows the authorization was issued for a different CPT code, explaining the denial.

• Checking only whether an authorization number exists.
• Ignoring approved units or date range.
• Assuming retro authorization is always available.
• Ignoring Provider's Network status
• Ignoring proper documentation (PCP Referral)

Show that you validate all authorization elements, not just the number.