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[California] Medical Policies and Clinical Utilization Management Guidelines update
Effective date
Dec 18, 2026
Identified
Sep 17, 2026
Summary
Anthem Blue Cross Medi-Cal has updated 23 medical policies and clinical utilization management guidelines effective December 18, 2026, affecting prior authorization requirements, coverage criteria, and medical necessity determinations for procedures ranging from cardiac interventions to diabetic devices. Several policies have changed from "investigational" or "revised" status, potentially affecting coverage for services previously considered medically necessary. The billing team must review each guideline to identify which procedures now require prior authorization or have new documentation requirements.
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What to do
Action · 9 steps
01DEADLINE: By December 18, 2026, billing team must complete the following actions.
02Access Anthem's Medical Policies and Clinical UM Guidelines website and download full text for all 23 updated policies listed (SURG.00011, SURG.00032, SURG.00121, TRANS.00008, CG-DME-42, CG-DME-44, CG-DME-50, CG-LAB-21, CG-LAB-37, CG-LAB-38, CG-MED-101, CG-MED-40, CG-MED-68, CG-OR-PR-02, CG-SURG-106, CG-SURG-126, CG-SURG-127, CG-SURG-131, CG-SURG-132, CG-SURG-133, CG-SURG-90, CG-TRANS-04).
03Map each policy revision to specific CPT/HCPCS codes used in your practice by reviewing the full policy documents.
04Identify which policies changed coverage status (particularly those marked "Revised" that may now require prior authorization or deny previously covered services).
05Update billing software and encounter templates to reflect new prior authorization requirements.
06Communicate changes to all providers and clinical staff, particularly for cardiac procedures, transplantation, diabetes management devices, and wound care products.
07For policies marked "Conversion," verify whether these represent new coverage classifications affecting claim submission.
08Monitor for claim denials after December 18, 2026, and be prepared to educate providers on new medical necessity criteria.
09Special attention required for revised policies affecting high-volume services (Continuous Glucose Monitoring, Automated Insulin Delivery Systems, Cardiac Monitors, Knee Braces) as these may significantly impact billing workflows.
If missed: Failure to obtain required prior authorizations will result in claim denials.
Original notice
[California] Medical Policies and Clinical Utilization Management Guidelines update
providernews.anthem.com · Always check the source before changing claims.
Related changes
See all Anthem BCBS changes →[California] Medical Policies and Clinical Utilization Management Guidelines updateMediumEffective Jan 30, 2027 · Prior Authorization[California] Medical Policies and Clinical Utilization Management Guidelines update (October 2026 Newsletter)MediumEffective Nov 1, 2026 · Prior Authorization[California] Medical Policies and Clinical Utilization Management Guidelines updateHighEffective Nov 1, 2026 · Prior Authorization[New York] Medical Policies and Clinical Utilization Management Guidelines updateHighEffective Oct 18, 2026 · Prior AuthorizationBrowse every Anthem BCBS change in the policy list