Highmark BCBS Letter of Medical Necessity Guide
How to write an LMN and overturn a prior authorization denial with Highmark BCBS. Includes denial reasons, turnaround times, appeals address, and clinician tips.
Quick Facts
- Avg Turnaround: 30 days standard
- Appeals Address: Highmark Appeals, PO Box 535047, Pittsburgh, PA 15253
- Provider Portal: https://www.highmark.com/
Why Highmark Denies Prior Authorizations
- 1. Medical policy not met
- 2. Step therapy
- 3. Site of care
Clinician Tips for Highmark
- ✓ PA, WV, DE, NY plans
- ✓ Reference Highmark Medical Policy number
- ✓ Availity portal for submissions
Regional Blue plan covering Pennsylvania, Delaware, West Virginia, and parts of NY.
Highmark Prior Authorization FAQ
Why does Highmark deny prior authorizations?
The most common Highmark denial reasons are: Medical policy not met; Step therapy; Site of care.
How long does Highmark take to review a prior authorization?
Highmark typically responds in 30 days standard.
What should a Letter of Medical Necessity for Highmark include?
An LMN for Highmark BCBS should reference the specific medical policy or coverage bulletin, document failed first-line therapies with dates, include current labs and ICD-10 codes, and cite supporting clinical guidelines. Regional Blue plan covering Pennsylvania, Delaware, West Virginia, and parts of NY.