Anthem Blue Cross Blue Shield denied claim appeal
Anthem BCBS · updated for 2026 · Verified against Anthem Blue Cross Blue Shield (2026-06-16)
Appeal in 4 steps
- 1Read the Anthem Blue Cross Blue Shield denial letter (EOB) and identify the cited medical policy.
- 2Request the full clinical policy bulletin from Anthem BCBS; ERISA plans must provide it free of charge.
- 3Gather office notes, imaging, prior therapy history, and a letter of medical necessity from your treating physician.
- 4Submit the appeal in writing to the address on the denial letter, by certified mail and through anthem.com if available, within 180 days.
Key facts
| Internal appeal window | 180 days from denial |
|---|---|
| External review window | 120 days after final internal denial |
| Expedited appeal | Decision within 72 hours |
| Appeals address | Anthem Blue Cross, Grievances and Appeals, P.O. Box 4310, Woodland Hills, CA 91365-4310 (California). Other Anthem affiliates publish a different address — confirm on your denial letter. |
| Phone | 1-800-365-0609 (Anthem CA Grievances and Appeals; TTY 711). Other states: use the number on your ID card. |
| Member portal | anthem.com |
Anthem operates under separate Blue Cross Blue Shield licensees by state (Anthem CA, Empire BCBS, Anthem Health Plans, etc.). The 180-day filing window and 72-hour expedited turnaround are standard across affiliates; mailing address and phone differ by state plan.
Primary source: Anthem Blue Cross Blue Shield — official appeals pageAnthem: 'Members have up to 180 calendar days from the date of an incident or dispute, or from the date the member receives a denial letter, to submit a grievance or appeal to Anthem Blue Cross.' Expedited physician reviews completed within 72 hours. Last verified: 2026-06-16.
Upload the denial letter. Get the cited policy identified, the evidence checklist, and a finished appeal letter you can sign.
Common Anthem BCBS denial reasons
- Lack of medical necessity
- Prior authorization required
- Service not covered under plan
- Out of network
- Coding or billing error
Evidence checklist
- ✓Denial letter (EOB)
- ✓Member ID and claim number
- ✓Treating physician letter of medical necessity
- ✓Office notes from the last 12 months
- ✓Imaging or lab reports
- ✓Anthem BCBS clinical policy bulletin (cited in denial)
- ✓Prior therapy history
- ✓Specialty guideline citation
Drug-specific Anthem BCBS appeals
Verified prior-authorization criteria and override strategy per medication.
- Wegovy (semaglutide)GLP-1 for weight management→
- Zepbound (tirzepatide)GIP/GLP-1 for weight management→
- Humira (adalimumab)TNF inhibitor→
- Dupixent (dupilumab)IL-4/13 inhibitor→
- Ozempic (semaglutide)GLP-1 for type 2 diabetes→
- Mounjaro (tirzepatide)GIP/GLP-1 for type 2 diabetes→
- Stelara (ustekinumab)IL-12/23 inhibitor→
- Enbrel (etanercept)TNF inhibitor→
- Skyrizi (risankizumab)IL-23 inhibitor→
- Trikafta (elexacaftor/tezacaftor/ivacaftor)CFTR modulator→
Anthem BCBS appeal by denial reason
Verified policy basis and override strategy for each common reason Anthem BCBS cites.
- Not medically necessaryOverturn: High→
- Experimental or investigationalOverturn: High→
- Prior authorization requiredOverturn: Medium→
- Step therapy requiredOverturn: High→
- Out of networkOverturn: High→
FAQ
How long do I have to appeal a Anthem Blue Cross Blue Shield denial?+
180 days from the date of the denial to file an internal appeal. Expedited (urgent) appeals must be decided within 72 hours.
Where do I send a Anthem Blue Cross Blue Shield appeal?+
Use the address on your denial letter (the EOB). Addresses vary by plan and region; the denial letter is authoritative.
Can I appeal a Anthem Blue Cross Blue Shield denial without a lawyer?+
Yes. Most internal appeals are filed by the member or the treating physician. The appeal should cite the insurer's clinical policy and include a letter of medical necessity.
What happens after the internal appeal?+
If the final internal appeal is denied, you have 120 days to request external review by an Independent Review Organization. External review is binding on the insurer.