Anthem Blue Cross (California)'s published appeal, dispute, and timely-filing windows are below, each quoted verbatim from Anthem Blue Cross (California)'s provider documentation or the governing regulation with a source link. Which window applies can depend on the product and its regulator, so confirm the product before you calendar the deadline.
Day types are not interchangeable: calendar, business, and month windows each count differently, and month windows are never converted to days. Every value below is quoted from its primary source.
Deadlines you must hit
Medi cal claim reconsideration filing
12 monthsClock starts: last action on claim
We must receive your request for reconsideration within 12 months of the last action on a claim.
Source: 2026 Anthem CA Medicaid Provider Manual, "Claim Payment Reconsiderations", pp. 228-229
Medi cal claim payment appeal filing
60 calendar daysClock starts: reconsideration outcome
If you are unsatisfied with the outcome of the reconsideration, you may submit a claim payment appeal within 60 calendar days of the reconsideration outcome.
Source: 2026 Anthem CA Medicaid Provider Manual, "Claim Payment Appeal", p. 229
Commercial provider dispute filing
365 calendar daysClock starts: date on notice of action letter
The appeal must be received by Anthem Blue Cross (Anthem) within 365 days from the date on the notice of the letter advising of the action.
Source: Anthem CA Claims Submissions and Disputes (live page)
Submission channel preferred
Procedural ruleAnthem uses Availity, a secure, full-service web portal... Use Availity to submit claims, check the status of claims, appeal a claim decision and much more.
Source: Anthem CA Claims Submissions and Disputes (live page)
Payer response clocks
Medi cal reconsideration response
30 calendar daysClock starts: receipt of reconsideration request
The results will then be communicated to you in a determination letter within 30 calendar days of the receipt of the reconsideration.
Commercial PDR response
45 business daysClock starts: receipt of dispute
Tracking records are assigned to G&A for review to be completed within 45 business days of receipt.
Source: Anthem CA "Key Steps to Provider Dispute Resolution" (SEM, Dec 2022)
Medi cal appeal response
30 calendar daysClock starts: receipt of claim payment appeal
The results will then be communicated to you in a determination letter within 30 calendar days of the receipt of the claim payment appeal.
Source: 2026 Anthem CA Medicaid Provider Manual, pp. 229-230
Reference information for provider billing teams, not legal advice. Windows depend on the plan's regulator and product, so confirm against your contracted provider manual. Sources retrieved 2026-07-04.