Blue Cross Blue Shield timely filing deadlines are set by each BCBS affiliate individually and range from as short as 90 days to as long as two years from the date of service, depending on the plan, the type of coverage, and whether the provider is in-network. Miss the deadline and the claim is typically denied with no path to payment, though in most cases the provider also cannot turn around and bill the patient for the balance.
Deadlines Vary Widely by Plan
There is no single BCBS deadline. Because BCBS is a federation of independent companies, each affiliate writes its own rule, often splitting it further by commercial, Medicare Advantage, or Medicaid coverage and by whether the provider is participating. A sampling of current limits shows how far apart they sit:
- Blue Cross NC commercial: 90 days for participating providers, 12 months for nonparticipating.1Blue Cross NC. Claims Timely Filing Policy G-06050
- Anthem BCBS Georgia commercial: 90 days from the date of service for professional claims received on or after October 1, 2019.2Anthem Provider News. Reminder: Changes to Timely Filing Requirements Coming in October
- Anthem BCBS New York Medicaid: 90 days participating, 15 months nonparticipating.3Anthem Blue Cross and Blue Shield. Claims Timely Filing Policy G-06050 — New York Medicaid
- Anthem BCBS Indiana Medicaid: 90 days participating, 180 days nonparticipating.4Anthem Blue Cross and Blue Shield. Claims Timely Filing Policy G-06050 — Indiana Medicaid
- Anthem BCBS Ohio Medicaid: 365 days for both participating and nonparticipating providers.5Anthem Blue Cross and Blue Shield. Claims Timely Filing Policy G-06050 — Ohio Medicaid
- BCBS of Michigan member-submitted claims: two years from the date of service for medical, one year for pharmacy.6Blue Cross Blue Shield of Michigan. Submit a Claim
- BCBS of Michigan Medicare: one calendar year from the date of service.7Blue Cross Blue Shield of Michigan. Medicare Submit Claims
- Florida Blue member-submitted claims: one year from the date of service.8Florida Blue. Major Medical Claim Form
- CareFirst BCBS Maryland Medicaid: 180 calendar days from the date of service or from the date primary insurance paid.9CareFirst BlueCross BlueShield. Medicaid Provider Claims
- CareFirst institutional claims: 365 days from discharge or from when outpatient services are rendered.10Maryland Department of Health. CareFirst Provider Manual
- Federal Employee Program (FEP Blue): December 31 of the calendar year after the year services were received.11FEP Blue. How to Submit a Claim
The practical consequence is that you have to check the specific plan on the patient’s card. A single day past the deadline can produce a denial with no appeal rights, and the gap between a 90-day commercial limit and a two-year member-submitted limit is too large to guess at.
How the Filing Clock Is Counted
BCBS plans measure timely filing in calendar days, counting from the date of service to the date the plan receives the claim.1Blue Cross NC. Claims Timely Filing Policy G-06050 Two adjustments show up across most affiliates.
For consecutive-day services such as an inpatient stay, the clock starts from the last day of service or discharge date rather than admission.5Anthem Blue Cross and Blue Shield. Claims Timely Filing Policy G-06050 — Ohio Medicaid
When BCBS is the secondary payer, the filing period starts from the date the provider receives the Explanation of Payment from the primary insurer, not from the date of service.4Anthem Blue Cross and Blue Shield. Claims Timely Filing Policy G-06050 — Indiana Medicaid Anthem of Georgia’s policy says the same: the 90-day window begins when the provider is notified of the primary payer’s responsibility.2Anthem Provider News. Reminder: Changes to Timely Filing Requirements Coming in October
Corrected Claims Have Their Own Deadlines
Filing the original claim on time does not buy unlimited time to fix mistakes. Several Anthem BCBS affiliates, including Colorado, Connecticut, Georgia, Indiana, Kentucky, Maine, Missouri, Nevada, New Hampshire, New York, Ohio, Virginia, and Wisconsin, require corrected claims within 12 months of the date of service.12Anthem Blue Cross and Blue Shield. Corrected Claims Reimbursement Policy G-16001 Blue Cross NC’s Medicare Advantage plan uses the same 12-month limit.13Blue Cross NC. Corrected Claims Reimbursement Policy G-16001 Anthem BCBS New York Medicaid is tighter: 60 days from the Explanation of Payment.14Anthem Blue Cross and Blue Shield. Corrected Claims Policy G-16001 — New York Medicaid
Submission mechanics matter too. Electronic corrected claims need the right frequency code, typically 7 for a replacement or 8 for a void. Paper submissions must be marked “Corrected Claim.” BCBS of Texas prohibits frequency code 5 (Late Charges) on corrected claims and warns that using it causes denial.15Blue Cross and Blue Shield of Texas. Corrected Claim Submission Policy CPCP025 Each corrected claim goes in individually per member and per episode of care; batch resubmission is not accepted.12Anthem Blue Cross and Blue Shield. Corrected Claims Reimbursement Policy G-16001
Overturning a Late-Filing Denial
A timely filing denial is usually final, but there are three recognized ways to get one reversed.
Prove the Claim Was Actually Filed on Time
Most plans will reverse the denial if you can document that a clean claim went in by the deadline. Blue Cross NC’s policy says denied claims will not be reimbursed “unless the provider presents documentation” of timely submission of a clean claim.1Blue Cross NC. Claims Timely Filing Policy G-06050 CareFirst spells out what counts: for electronic claims, a clearinghouse confirmation showing the plan accepted the claim (error reports do not count); for paper claims, a billing-system screenshot of the original bill creation date paired with a duplicate of the clean claim. CareFirst requires reconsideration requests within six months of the original rejection.10Maryland Department of Health. CareFirst Provider Manual
Good Cause, Including Retroactive Enrollment
Anthem BCBS affiliates have a formal Good Cause provision under their Proof of Timely Filing policy (G-06133). A provider who shows a valid reason for the delay can have the claim reconsidered. One explicitly recognized basis is retroactive enrollment: the member was enrolled in BCBS effective on or before the date of service, but the provider did not know BCBS covered the patient at the time. The plan weighs the evidence and explanation submitted and may follow up for clarification.16Anthem Blue Cross and Blue Shield. Proof of Timely Filing Reimbursement Policy G-06133
Disaster and Regulatory Waivers
Several BCBS plans reserve the right to waive timely filing temporarily after documented natural disasters or when ordered by state regulators.12Anthem Blue Cross and Blue Shield. Corrected Claims Reimbursement Policy G-16001 BCBS of Michigan did this in 2024, announcing a 90-day extension and later auto-reprocessing commercial claims that had been wrongly denied during the implementation gap.17Blue Cross Blue Shield of Michigan. Reprocessing Claims Denied for Timely Filing FEP extends deadlines when “timely filing was prevented by administrative operations of Government or legal incapacity,” so long as the claim comes in as soon as reasonably possible afterward.18FEP Blue. Standard and Basic Options Brochure
If Your Provider Missed the Deadline, You Usually Cannot Be Billed
When a provider fails to file within the plan’s deadline, most BCBS plans bar the provider from charging the patient for the unpaid amount. BCBS of Michigan’s Medicare page states that if a claim was not submitted to the plan, “providers are prohibited from charging the patient.”7Blue Cross Blue Shield of Michigan. Medicare Submit Claims CareFirst’s provider manual carries the same rule: providers may not bill members when they miss the 365-day deadline.10Maryland Department of Health. CareFirst Provider Manual If you receive a bill after a late-filing denial, point the provider to the plan’s policy before paying.
Out-of-Area BlueCard Claims
If a BCBS member gets care outside their home plan’s service area, the claim is routed through BlueCard. The provider submits to the local BCBS plan (the host), which forwards it to the member’s home plan for adjudication. Whose timely filing deadline applies is not spelled out universally; the BlueCard manual directs providers to contact their local BCBS plan for claims payment, adjustments, and issue resolution.19Blue Cross and Blue Shield of Texas. BlueCard Program Provider Manual Confirm the deadline with both plans rather than assume either standard governs.
State and Federal Rules That Can Override Plan Policies
Plan policies do not sit above the law. Anthem’s reimbursement documents acknowledge that their limits “may be superseded by mandates in provider, state, federal, or Centers for Medicare & Medicaid Services (CMS) contracts and/or requirements.”5Anthem Blue Cross and Blue Shield. Claims Timely Filing Policy G-06050 — Ohio Medicaid If a state requires insurers to accept claims for at least 180 days, a BCBS plan in that state cannot enforce a 90-day limit on the covered lines of business, whatever its internal policy says. Providers in states with prompt-pay or claims-filing statutes should check whether those laws apply before writing off a denial.