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Anthem BCBSMedicare Advantage · Billing Codes · Newsletter · CAHigh impact

[California] September 2026 Provider Newsletter

Effective date
Not stated in the notice
Identified
Sep 2, 2026

Summary

This September 2026 provider newsletter from Anthem Blue Cross contains multiple policy updates across billing codes, prior authorization, reimbursement, and administrative processes. Key changes include: modifier 25 billing requirements for E&M services with XXX procedures (effective Oct 1, 2026 for Medicaid), blood product administration billing consolidation (effective Dec 1, 2026), new laboratory service modifier policies (effective Dec 1, 2026), and treatment room reimbursement updates (effective Dec 1, 2026). The newsletter also announces Medicaid 2027 work requirements effective January 1, 2027, and various administrative updates across plan types.

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What to do

Action · 19 steps
01MULTIPLE EFFECTIVE DATES - Immediate review required: By October 1, 2026: Billing team must update Medicaid billing protocols to require modifier 25 when billing eligible E&M (Evaluation & Management) services with XXX-status procedures.
02Update billing software validation rules and provider education materials.
03Claims submitted without proper modifier 25 application will be denied.
04By December 1, 2026.
05Stop billing blood product administration services separately under Medicaid.
06Consolidate into primary procedure billing.
07Update all charge capture systems and billing templates.
08Implement new combined reimbursement policy for modifiers 90 and 91 for laboratory services across Medicare Advantage and Medicaid.
09Update billing software to recognize new modifier guidelines.
10Prepare and implement treatment room reimbursement updates for Medicaid.
11Verify facility coding changes in billing system.
12Test workflows before effective date.
13Before October 1, 2026: Billing team must review and implement Excludes1 note updates for Commercial plans to prevent claim denials.
14Immediate (Ongoing): Implement Carelon Medical Benefits Management updates effective September 28, 2026 (Medicare Advantage) and November 28, 2026 (Medicaid).
15Prior authorization and clinical appropriateness guideline changes require system updates.
16Review precertification/prior authorization requirement changes for Medicare Advantage effective September 28, 2026.
17By January 1, 2027: Ensure all Medicaid claim processing systems account for new 2027 work requirement rules and documentation needs.
18Other Administrative: Front desk and credentialing staff should utilize new Quick Contact Guide and Availity Essentials provider enrollment features.
19Complete required 2026 consumer grievance and appeals attestation survey for Commercial plans.

Codes mentioned

259091

Original notice

[California] September 2026 Provider Newsletter
providernews.anthem.com · Always check the source before changing claims.
View original ↗

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