Blue Shield of California Letter of Medical Necessity Guide
How to write an LMN and overturn a prior authorization denial with Blue Shield of California. Includes denial reasons, turnaround times, appeals address, and clinician tips.
Quick Facts
- Avg Turnaround: 30 days standard, 72h expedited (CA law: 5 business days standard)
- Appeals Address: Blue Shield of California Appeals, PO Box 272540, Chico, CA 95927
- Provider Portal: https://www.blueshieldca.com/provider
Why Blue Shield CA Denies Prior Authorizations
- 1. Medical necessity criteria not met
- 2. Step therapy not satisfied
- 3. Specialty pharmacy required
- 4. Non-formulary without step-through
Clinician Tips for Blue Shield CA
- ✓ Reference Blue Shield of California Medical Policy number in LMNs
- ✓ Mark Pharmaceutical is an internal PBM; pharmacy benefit appeals go through the plan
- ✓ California law (SB 1236/AB 1803) mandates faster timelines than federal minimums — cite applicable state timeline in urgent appeals
- ✓ Use the Blue Shield Provider Connection portal for electronic PA submission
California's second-largest insurer. Nonprofit. Medical Policies are publicly available. California Department of Managed Health Care (DMHC) governs timelines for fully-insured plans.
Blue Shield CA Prior Authorization FAQ
Why does Blue Shield CA deny prior authorizations?
The most common Blue Shield CA denial reasons are: Medical necessity criteria not met; Step therapy not satisfied; Specialty pharmacy required; Non-formulary without step-through.
How long does Blue Shield CA take to review a prior authorization?
Blue Shield CA typically responds in 30 days standard, 72h expedited (CA law: 5 business days standard).
What should a Letter of Medical Necessity for Blue Shield CA include?
An LMN for Blue Shield of California 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. California's second-largest insurer. Nonprofit. Medical Policies are publicly available. California Department of Managed Health Care (DMHC) governs timelines for fully-insured plans.