There is no single BCBS Medicare Advantage timely filing limit. Each Blue licensee runs its own MA plans and sets its own window, and your provider agreement controls. Published windows for contracted providers include 90 days from the date of service at Anthem, 180 days at Blue Cross and Blue Shield of Illinois, 365 days at Highmark when the contract sets no other window, and one calendar year for BCBS of Michigan's Medicare Plus Blue PPO. No federal rule gives contracted providers a 365-day Medicare Advantage floor.
Why "BCBS Medicare Advantage" Has No Single Deadline
The Blue Cross Blue Shield Association licenses the brand, but each independent company runs its own Medicare Advantage contracts with CMS. Each one writes its own provider manual and agreements, so timely filing windows differ by company.
That means "BCBS" on a Medicare Advantage card tells you very little about the deadline. You need three facts before you can calendar a claim:
- Which licensee issued the plan. Look for the company name and payer ID on the member card, not just the Blue logo.
- Which MA product it is. HMO, PPO, and dual-eligible special needs plans (D-SNPs) can sit in different manuals at the same company.
- Whether you are contracted for that MA product. A commercial Blue contract does not automatically make you in-network for the same company's Medicare Advantage plans.
If you bill the plan as an out-of-area member through BlueCard, the home plan's rules still matter. See the BCBS BlueCard provider appeal guide for that routing.
BCBS Medicare Advantage Timely Filing Limits by Licensee
Published initial-claim windows for contracted providers range from 90 days to one calendar year. The table below lists only figures we could read in each licensee's current public manual, policy, or notice. Your signed agreement can set a different window.
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| Licensee and MA product | Initial claim window (contracted) | Clock starts | Source |
|---|---|---|---|
| Anthem Blue Cross and Blue Shield (Elevance) MA | 90 days for professional claims | Date of service | Provider agreement amendment effective Oct 1, 2019, reported by AAFP |
| Blue Cross NC Healthy Blue + Medicare (HMO-POS D-SNP) | 90 days participating; 12 months nonparticipating | Date of service, or last day for consecutive days | Reimbursement policy G-06050 |
| BCBS of Illinois (HCSC) Blue Cross Medicare Advantage HMO | 180 days | Date of service | MA HMO Non-Delegated manual, January 2026 |
| BCBS of Illinois (HCSC) Blue Cross Medicare Advantage PPO | 180 days | Date of service | MA PPO manual, January 2026 |
| Highmark (PA, DE, WV, NY) | Window in your contract; 365 days if the contract sets none | Last date of service | Highmark Provider Manual, Chapter 6.1 |
| BCBS of Michigan Medicare Plus Blue PPO | One calendar year | Date of service | BCBSM Medicare claim submission page |
Sources: AAFP report on Anthem's 2019 amendment (Aug 9, 2019), Blue Cross NC policy G-06050 (approved Jun 3, 2025), BCBSIL MA HMO manual and BCBSIL MA PPO manual (January 2026), Highmark Provider Manual Unit 1, and BCBSM Medicare Plus Blue claims page. All checked October 6, 2026.
Anthem: 90 days, set by contract
Anthem amended its provider agreements to require commercial and Medicare Advantage professional claims within 90 days of the date of service, effective for claims submitted on or after October 1, 2019, as AAFP reported. Anthem's April 2026 Medicare Advantage Provider Guidebook does not restate a day count. It refers only to "the timely filing requirements," so read your agreement's claims section before you rely on 90 days.
For the commercial side of Anthem's rules, see the Anthem timely filing limits guide.
BCBS of Illinois: 180 days for MA HMO and PPO
Both of BCBSIL's January 2026 Medicare Advantage manuals say claims must be submitted within 180 days of the date of service. Services billed after 180 days "are not eligible for reimbursement," and the provider may not bill the member for them. These manuals are BCBSIL's. If the card names another HCSC plan, such as BCBS of Texas, use that plan's current MA manual.
Highmark: your contract, then 365 days
Highmark's manual says claims not received within the time frame in your contract are denied. If your contract sets no window, claims must be received within 365 days of the last date of service in Delaware, Pennsylvania, and West Virginia. Highmark's New York plans also use 365 days from the date of service or discharge. The section does not carve out a separate MA window, so the contract is the first place to look.
BCBS of Michigan: one calendar year for Medicare Plus Blue PPO
BCBSM tells providers to submit Medicare Plus Blue PPO claims "within one calendar year of the date of service." BCN Advantage, BCBSM's HMO product, is not covered by that page. Check the BCN Advantage section of the BCN provider manual for its window.
Blue Cross NC: 90 days for its D-SNP
Blue Cross NC's reimbursement policy for Healthy Blue + Medicare, its HMO-POS D-SNP, sets 90 days for participating providers and 12 months for nonparticipating providers. If the member has other primary insurance, the clock runs from the other carrier's Explanation of Payment. This policy covers that D-SNP only. Blue Cross NC's other Blue Medicare products have their own documents.
No Federal 365-Day Floor Protects Contracted Providers
A lot of billing guides say CMS requires every Medicare Advantage plan to accept claims for 365 days. That is not what the regulation says.
42 CFR 422.520 is a prompt payment rule. It requires MA plans to pay 95% of clean claims from non-contracted providers within 30 days. For contracted providers, it says payment follows "the terms of the contract." It does not set a filing deadline.
The one-year figure comes from Original Medicare. Under 42 CFR 424.44, fee-for-service claims are due within one calendar year of the date of service. Many MA plans apply a similar window to non-contracted providers. Blue Cross NC's 12-month nonparticipating window is one example. Contracted providers, however, agreed to whatever the contract says.
Don't calendar BCBS MA claims at 365 days by default
If your billing system uses one Medicare Advantage window for every Blue plan, Anthem and Blue Cross NC D-SNP claims can deny at day 91, and BCBSIL claims at day 181. Set the timely filing rule by payer ID and product, not by the word "Medicare."
BCBS Medicare Advantage Appeal and Dispute Deadlines
Appeal clocks differ even more than filing windows. Some licensees offer a payment dispute track and a separate clinical appeal track. BCBSIL gives contracted MA providers no post-claim appeal rights at all, only a claim review.
| Licensee | Dispute or appeal track | Deadline | Clock starts |
|---|---|---|---|
| Anthem MA | Claim payment reconsideration (includes timely filing denials) | 120 calendar days | Date on the Explanation of Payment |
| Anthem MA | Claim payment appeal (second step) | 63 calendar days | Reconsideration determination letter |
| Anthem MA | Participating provider medical necessity appeal | 180 days | Anthem decision letter |
| BCBSIL MA HMO and PPO | Claim review (contracted providers have no post-claim appeal rights) | See the claim review form and your agreement | Claim decision |
| Florida Blue | Participating provider administrative appeal, including timely filing | One year | Remittance advice date |
| Florida Blue MA | Non-participating provider appeal (Waiver of Liability required) | 60 calendar days | Remittance advice date |
| Any MA plan (federal rule) | Standard reconsideration by a party, including a non-contracted provider | 60 calendar days | Receipt of the notice, presumed 5 days after issue |
Sources: Anthem MA Provider Guidebook (April 1, 2026), sections 5.3, 5.4, and 6.2; BCBSIL MA PPO manual (January 2026); Florida Blue Manual for Physicians and Providers, Provider Appeals; 42 CFR 422.582.
Anthem's timely filing reconsideration
Anthem lists timely filing as a claim payment dispute. Its guidebook says Anthem "will consider reimbursement" of a claim denied for timely filing if you can either document that the claim was submitted on time or show good cause. File the reconsideration within 120 days of the EOP by phone, on Availity, or in writing. If Anthem upholds the denial, you have 63 days from the determination letter to file a claim payment appeal.
BCBSIL: claim review, not appeal
Both BCBSIL MA manuals say a claim review "is not a provider appeal." Contracted providers under the MA HMO and PPO "do not have post claim appeal rights" and "may only dispute claim decisions." Use BCBSIL's claim review form. The HMO manual lists the post-service dispute address as Blue Cross Medicare Advantage, c/o Provider Services, P.O. Box 4555, Scranton, PA 18505, fax 855-674-9185. For other HCSC routing, see the HCSC BCBS appeal guide.
Non-contracted providers: 60 days and a Waiver of Liability
Under 42 CFR 422.582, a reconsideration must be filed within 60 calendar days after receipt of the written determination. Receipt is presumed 5 calendar days after the notice date. A plan may extend the deadline for good cause if you ask in writing and explain the delay. Florida Blue requires non-participating providers to file MA appeals within 60 days of the remittance advice and to include a signed Waiver of Liability.
For the letter, start with the Medicare Advantage appeal letter template. If you're not sure which track your denial belongs on, read reconsideration vs. appeal.
Corrected Claims Have Their Own Clocks
Corrected-claim windows also differ by licensee, and none of them restart the original filing window.
- Anthem MA: if the original claim was received on time, a corrected claim must be received within 365 days of the date of service, per the April 2026 guidebook. When a primary payer's payment changed, the window starts on the date of the most recent other-insurance EOB.
- Highmark: corrected claims (frequency code 5 or 7) must be received within 15 months (455 calendar days) of the original claim's finalization date, effective September 1, 2026. Later corrections are denied for timely filing.
- BCBSIL MA: the manuals ask for corrected claims "with proper identified coding" but don't give a separate window. Treat the 180-day limit as the outside date unless your agreement says otherwise.
For frequency code rules across the Blue system, see the BCBS corrected claim timely filing guide.
How to Find Your Exact BCBS MA Filing Window
You can usually confirm the window in four steps, and the order matters because your contract outranks the manual.
- Read the member card. Note the company name, the product (HMO, PPO, D-SNP), and the payer ID. Write down which licensee you are billing.
- Pull your agreement for that MA product. Find the claims submission or timely filing clause. If you hold only a commercial contract, you may be non-contracted for MA.
- Check the licensee's current MA manual. Use it when the agreement is silent, and save a dated copy of the page.
- Call provider services if the two conflict. Ask for the timely filing rule for that product, and log the date, the representative's name, and the reference number.
Then set the rule in your billing system by payer ID and product. Keep 277CA clearinghouse acceptance reports for every MA claim. Anthem asks for documentation that the claim was submitted on time, and an acceptance report with a date is the clearest version of that.
How Other Medicare Advantage Plans Compare
Other large MA plans also set contracted windows by contract, so check each payer's own rules. See the UHC Medicare Advantage timely filing guide, the Aetna Medicare Advantage timely filing guide, and the Humana Medicare Advantage timely filing guide. For commercial Blue plans, use the BCBS timely filing limits guide. For every major payer in one table, see timely filing limits by insurance company.
Frequently Asked Questions
What is the BCBS Medicare Advantage timely filing limit?
It depends on the Blue licensee and your contract. Published contracted windows include 90 days at Anthem, 180 days at BCBS of Illinois, 365 days at Highmark when the contract sets none, and one calendar year for BCBS of Michigan's Medicare Plus Blue PPO.
Is the Anthem Medicare Advantage timely filing limit 90 days?
Yes, for professional claims under Anthem agreements amended effective October 1, 2019. That amendment set 90 days from the date of service for commercial and Medicare Advantage professional claims. Confirm the window in your current agreement.
Do Medicare Advantage plans have to give providers 365 days to file?
Not contracted providers. 42 CFR 422.520 sets prompt payment rules, not a filing deadline, and contracted payment follows the contract. The one-calendar-year rule in 42 CFR 424.44 applies to Original Medicare claims.
How long do I have to appeal a BCBS Medicare Advantage timely filing denial?
At Anthem, request a claim payment reconsideration within 120 days of the EOP date. BCBSIL contracted MA providers file a claim review instead of an appeal. Non-contracted providers generally have 60 days after receipt of the notice under 42 CFR 422.582.
Does a corrected claim restart the BCBS MA timely filing clock?
No. Anthem MA corrected claims must arrive within 365 days of the date of service if the original was timely. Highmark corrected claims must arrive within 455 days of the original claim's finalization, effective September 1, 2026.
What is the BCBS of Illinois Medicare Advantage timely filing limit?
180 days from the date of service for both Blue Cross Medicare Advantage HMO and PPO, per BCBSIL's January 2026 manuals. Claims after 180 days are not eligible for payment, and the member cannot be billed.
Get the BCBS MA Dispute Drafted Before the Window Closes
BCBS Medicare Advantage gives you a different clock at each licensee, and sometimes a different track too. Muni Appeals reads the denial you upload and drafts the reconsideration, claim review, or appeal for your staff to review. It lists the evidence to attach, such as the 277CA acceptance report, the remittance, and your agreement's filing clause, and flags deadline risks for staff to confirm and calendar.
This guide summarizes public BCBS licensee manuals, policies, and notices and federal regulations as checked on October 6, 2026. Your provider agreement, the denial notice, and the licensee's current manual control your actual deadlines and addresses. This is administrative information, not legal advice.