Insurance Denied My Surgery — What Do I Do?

Getting a Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization denial for surgery is terrifying — especially when your doctor says you need it now. But a denial is not the final word. Prior authorization denials are among the most frequently overturned on appeal. Here's exactly what to do.

First: Don't Cancel or Reschedule Your Surgery Yet

A prior authorization denial does not mean you cannot have the surgery. It means your insurer won't pay for it under the current request. You have the right to appeal, and many denials are reversed within days.

Talk to your surgeon's office before changing any plans. Many hospitals have dedicated insurance advocates who handle prior auth appeals every day — they may be able to resolve this faster than you can on your own.

The Timeline: You Must Act Fast

Most insurers require appeals within 30–60 days of the denial notice. If your surgery is urgent or your health could deteriorate while waiting, you have the right to an expedited appeal — which must be resolved within 72 hours.

Expedited appeals are available when the standard timeline could "seriously jeopardize your life or health." For surgery denials, this threshold is often met.

Step 1: Request the Denial in Writing

Call your insurer and request the complete written denial, including:

• The specific reason for denial
• The exact policy provision or clinical criterion cited
• The name and specialty of the reviewer who made the decision
• Information on how to appeal and the deadline

Under ACA regulations, you are entitled to all of this.

Step 2: Ask for a Peer-to-Peer Review

Your surgeon can request a direct conversation with the insurance company's medical director — called a "peer-to-peer" review. This is separate from the formal appeal process and can often reverse a denial within 24–48 hours.

Your surgeon's office should initiate this. If they haven't already, call them today and specifically ask: "Can you request a peer-to-peer review with [insurer name]'s medical director?"

Step 3: Gather Your Evidence Package

While the peer-to-peer is happening, start building your formal appeal:

From your surgeon:

• Letter of medical necessity explaining why surgery is required, what will happen without it, and why non-surgical alternatives have been exhausted or are inappropriate
• Operative report from any prior related procedure
• Conservative treatment records showing non-surgical approaches were tried and failed

From your medical records:

• Diagnostic imaging reports (MRI, CT, X-ray) supporting the surgical indication
• Lab results relevant to your condition
• Specialist notes confirming surgical necessity

Clinical guidelines:

• American College of Surgeons or specialty society guidelines supporting the surgical indication
• Published evidence-based protocols (e.g., AAOS for orthopedic procedures, ACC/AHA for cardiac surgery)

Step 4: File the Formal Appeal

Submit your appeal in writing — never just by phone. Address every specific reason the insurer cited. Use your surgeon's letter as the foundation, and supplement it with:

• Medical literature supporting surgical necessity
• Patient-specific factors (failed conservative care, severity of symptoms, functional limitation)
• Any applicable state or ACA requirements (e.g., step therapy reform laws)

Keep copies of everything and send via certified mail or a method with a delivery confirmation.

Step 5: File for External Independent Review: Complete Guide" class="auto-link">External Review if the Internal Appeal Fails

If your insurer upholds the denial after internal appeal, request an independent external review. This is:

• Free
• Completed within 45 days (or 72 hours for expedited)
• Binding on your insurer — they must comply with the external reviewer's decision on medical necessity

Request external review immediately after the internal appeal denial — don't wait.

What If Your Surgery Can't Wait?

If you need the surgery urgently and can't wait for the appeal process:

• Talk to your surgeon about proceeding and fighting for coverage retroactively
• Have your surgeon document that delay constitutes a clinical risk
• Some states require insurers to maintain continuity of care even during appeals
• Hospital financial counselors can discuss charity care, payment plans, or billing holds while appeals proceed

Fight Back With ClaimBack

ClaimBack generates a surgery prior authorization appeal letter in 3 minutes — citing your insurer's specific clinical criteria, applicable surgical guidelines, and the medical necessity framework your appeal needs.

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Related Reading

• How to Write an Insurance Appeal Letter
• What Is Medical Necessity?
• Internal vs External Insurance Appeal