Ambetter Timely Filing Limit 2026: Deadlines by State for Claims, Corrected Claims, and Appeals

Search for Ambetter's filing deadline and you'll see 180 days. That number holds for most Ambetter state plans. It fails a practice in Texas, Arizona, Tennessee, or New York, where the window runs shorter, and a biller who trusts it there ends up writing off clean claims as CO-29 denials.

This guide lists the Ambetter timely filing limit for providers in each state plan we could verify. It covers initial claims, corrected claims, reconsiderations and claim disputes, and secondary claims, plus the date that starts each clock and your options after a CO-29. Each figure comes from the state plan's own claims guide, with its date.

What Is the Ambetter Timely Filing Limit in 2026?

Ambetter's timely filing limit is 180 days from the date of service for participating providers in most states. At least four state plans publish shorter windows: Texas allows 95 days, Arizona 120, and Tennessee and New York 90. Ambetter measures the deadline to the day it receives your claim.

Two facts set your exact window: the Ambetter state plan printed on the member's ID card, and whether you're participating (in-network) or non-participating (out-of-network) with that plan. A new biller who asks, "What is the timely filing limit for Ambetter?" should get a question back: which plan, and are we in network with it?

Ambetter timely filing at a glance (verified September 23, 2026)

The Ambetter corrected claim timely filing limit and the Ambetter appeal timely filing limit both start at the date on the original Explanation of Payment (EOP). The date of service stops mattering once Ambetter processes the first claim. Texas, for example, gives you 120 calendar days from the EOP to file a reconsideration or claim dispute.

If your team still works from a 2025 Ambetter timely filing limit sheet, check South Carolina first. For claims received on or after July 1, 2024, Absolute Total Care allows 180 calendar days from the date of service, up from 120 business days, and its current claims guide confirms the 180.

For electronic claims, the Ambetter Health payer ID is 68069, through your clearinghouse or Availity Essentials. The Ambetter claims address for paper claims in the current state claims guides we checked is P.O. Box 5010, Farmington, MO 63640-5010. Ambetter from Fidelis Care in New York runs its own payer ID and mailing address.

Miss the window and Ambetter denies the claim with CO-29, the adjustment code for an expired filing limit. Sorting the CO-29s you can still win from the true write-offs is the first job in timely filing denial management.

What Ambetter Is and Why Its Filing Deadline Changes by State

Ambetter Health is Centene Corporation's Health Insurance Marketplace plan, sold as a Qualified Health Plan through a separate Centene company in each state. Each state plan publishes its own provider manual and claims guide, so your filing deadline depends on the plan that issued the member's coverage.

Superior HealthPlan runs Ambetter in Texas, Sunshine Health in Florida, Peach State Health Plan in Georgia, Absolute Total Care in South Carolina, Home State Health in Missouri, and Coordinated Care in Washington. In New York, the plan is Ambetter from Fidelis Care. Our Ambetter state plan map lists the plan behind each state.

The company on the ID card may not match the name on your contract. Celtic Insurance Company underwrites Ambetter in Arkansas, Missouri, and Tennessee, and Superior's claims guide splits Texas between Celtic for EPO plans and Superior HealthPlan for HMO plans. A biller who searches the underwriter's name can land on another state's Ambetter timely filing limit.

Is Ambetter Medicaid, Cigna, or Aetna?

No. Ambetter is Centene's commercial Marketplace product under the Affordable Care Act. It isn't Medicaid, though the same Centene company often runs the state's Medicaid plan too, such as Superior HealthPlan's STAR program in Texas. Cigna and Aetna are separate insurers with no ownership tie to Ambetter.

That commercial status shapes your billing. Marketplace members pay their own premiums, and a member who stops paying enters a federal grace period with its own claim rules.

How Ambetter Timely Filing Is Counted

Ambetter starts the initial filing clock on the date of service, or on the discharge date for inpatient and observation stays, and stops it on the date Ambetter receives the claim. Reconsiderations and disputes count from the date on the Explanation of Payment, and secondary claims count from the primary payer's EOP.

Which Date Starts the Ambetter Filing Clock

Four clocks can run on a single Ambetter account, and each one starts on a different date, so match the submission type before you count.

What starts each Ambetter filing clock

Billers who count from the wrong date watch claims that looked timely come back as CO-29 denials. Match each submission to its own start date before you run the math.

Ambetter Measures to the Date It Receives the Claim

Absolute Total Care's 2024 notice spells it out: days run from the date of service to the date Ambetter receives the claim. Mail time on a paper claim comes out of your window, so a claim you drop in the mail on day 176 can land late. Send claims through your clearinghouse when you can.

Billers mix up two acknowledgments. A 999 tells you the file's structure passed. A 277CA that accepts the claim tells you it entered Ambetter's adjudication system, and that second report is the one that shows receipt.

Ambetter's North Carolina rejection guide states that upfront rejections don't enter the claims adjudication system, so Ambetter issues no EOP for them. The practice gets a rejection letter or report instead. Until someone fixes and resends the claim, Ambetter has no record of receiving it.

Rejected Claims Don't Stop the Clock

Picture a Tuesday batch of 40 Ambetter claims. Six reject for a missing taxonomy code, the second most common rejection on Ambetter's North Carolina list, which comes back as EDI reject code 91. The front desk doesn't open the report, and those six sit as "submitted" for 11 weeks. On a Texas plan, that's 77 of your 95 days.

Fix rejected claims and resend each one as a new original claim with the same date of service, as the North Carolina guide instructs. A denied claim needs a corrected claim or a reconsideration instead, and both of those run on the EOP clock.

How to Calculate Your Ambetter Filing Deadline

To find the last day of your Ambetter timely filing limit, count calendar days forward from the date of service, with the day after the visit as day one. A visit on Monday, March 2, 2026 lands on these dates:

Ambetter claim filing deadline for a March 2, 2026 date of service

The Ambetter documents we reviewed don't publish a weekend or holiday rollover, and they don't say which day counts as day one. Count the conservative way and treat the last business day before the deadline as the real one.

Set your internal cutoff 30 days ahead of each payer deadline. That cushion gives your team room to fix one rejection and resend the claim before the window closes.

Upfront rejections eat Ambetter deadlines in silence, because a rejected claim doesn't show up on the aging report as a denial. If your team doesn't open the acknowledgment report each day, claim acceptance tracking follows each claim from transmission through acknowledgment, so someone fixes a rejection while the window is still open.

Ambetter Timely Filing Limit by State

Ambetter timely filing limits for initial claims run from 90 to 180 days for participating providers, depending on the state plan. Most plans allow 180 days from the date of service. Texas allows 95, Arizona 120, and Tennessee and New York 90, while non-participating providers get 90 days in five of the plans we verified.

Ambetter timely filing limits by state plan, 2026 (last verified September 23, 2026)

All figures are calendar days unless marked. Par means participating (in-network), and non-par means non-participating (out-of-network). Initial claims count from the date of service; reconsiderations and disputes count from the EOP.

Participating and Non-Participating Provider Deadlines

Participating means you've signed an agreement with that Ambetter plan, which puts you in network. Non-participating means you haven't. Ambetter's guides say par and non-par, most search results say in-network and out-of-network, and both pairs describe the same split.

Some billing guides say out-of-network providers get up to 365 days from Ambetter. Missouri is the only plan in the table that allows 365. Arkansas, Georgia, Iowa, Pennsylvania, and Tennessee give non-participating providers 90 days, Texas gives 95, and Florida and South Carolina give the same 180 days as participating providers.

You can be in network with one Ambetter plan and out of network with the plan across the state line, even inside the same Centene family. Run in-network status checks before the visit so you know which clock applies.

Your participation agreement can also set its own filing window. Read the claims article in your contract before you trust any published number, including the ones in this guide, and note any difference in your payer deadline sheet.

Ambetter's longer windows show up on the back end. Washington allows 24 months for reconsiderations and disputes, and Missouri gives non-participating providers 365 days for secondary claims. Participating providers don't get more than 180 days for initial claims in any plan in the table.

Texas: Ambetter from Superior HealthPlan Allows 95 Days

The Ambetter from Superior HealthPlan timely filing limit is 95 calendar days from the date of service for initial claims, for participating and non-participating providers alike, per the Superior HealthPlan claims and disputes guide. Reconsiderations and disputes get 120 calendar days from the EOP, and coordination of benefits claims get 95 days.

The Ambetter Texas timely filing limit is the tightest window a multistate group hits outside Tennessee and New York, so put Texas claims at the top of the daily work queue. Superior's Medicaid and CHIP products run under separate manuals, so confirm the product on the ID card before you apply the 95 days.

The same guide sends Texas reconsiderations to "Attn: Request for Reconsideration" at P.O. Box 5010, Farmington, MO 63640-5010. It also states that Ambetter doesn't accept handwritten, faxed, or replicated claim forms, so a paper claim on a copied form rejects before the clock even matters.

Arizona: Ambetter from Arizona Complete Health Lists 120 Days

Ambetter from Arizona Complete Health lists 120 days from the date of service on its Arizona Complete Health quick reference guide. Health Net of Arizona underwrites the plan and does business as Arizona Complete Health.

Arizona's guide sat fourth on Google for the national query in September 2026, below Washington's guide and its 180 days. An Arizona biller who reads the top result loses 60 days without knowing it. Check the Arizona manual for dispute and COB windows, because the quick reference guide lists neither.

Tennessee: Ambetter of Tennessee Allows 90 Days

The Ambetter of Tennessee timely filing limit is 90 calendar days from the date of service for participating and non-participating providers, per the Tennessee claims guide last updated in August 2025. That ties New York for the tightest initial window among the plans we verified.

Reconsiderations and disputes in Tennessee get 180 days for participating providers and 90 for non-participating providers, counted from the EOP. Secondary claims get 90 days from the primary payer's EOP, half of what most other plans allow.

New York: Ambetter from Fidelis Care Allows 90 Days

Ambetter from Fidelis Care timely filing runs 90 calendar days from the date of service for initial claims, 60 days from the remittance advice for corrected claims, and 60 business days from receipt of the denial for medical necessity appeals, per the Fidelis QHP and Essential Plan Provider Manual V26.0.

New York is the one Ambetter plan in this guide that skips payer ID 68069. Fidelis Care uses payer ID 11315, and Ambetter medical paper claims go to P.O. Box 724, Amherst, NY 14226-0724. Our guide to Ambetter from Fidelis Care deadlines covers the rest.

South Carolina: Absolute Total Care Moved to 180 Calendar Days

The Ambetter Absolute Total Care timely filing limit is 180 calendar days from the date of service for claims received on or after July 1, 2024, per the Absolute Total Care timely filing notice. Before that date, the plan allowed 120 business days. For inpatient and observation stays, the clock starts at discharge.

Absolute Total Care's online quick reference guide still showed 120 days in September 2026. Its claims guide, updated October 2025, lists 180 calendar days for participating and non-participating providers. Bill to the 180 days, and keep a copy of the notice with any timely filing dispute.

South Carolina's short window sits on the back end. Reconsiderations and disputes get 60 calendar days from the EOP, one of the shortest appeal windows among the plans we verified, and disputes go to P.O. Box 10341, Van Nuys, CA 91410.

Florida: Ambetter Health Deadlines for Claims and Appeals

The timely filing limit for Ambetter Health in Florida is 180 days from the date of service for initial claims, for participating and non-participating providers. First level reconsiderations are due within 90 days of the original EOP, and second level disputes within 90 days of the reconsideration denial, per the Ambetter Florida appeals comparison.

Florida's appeals page adds two rules worth taping to the monitor. Ambetter closes an appeal filed before an EOP exists as invalid, and the plan reviews each level within 60 days, asking providers to allow 65 days before they escalate.

Secondary claims in Florida run 90 calendar days from the primary payer's EOP, per the Florida claims guide updated August 2025. That settles the "180 or 90" hedge you'll see in AI answers.

Washington: Coordinated Care's Longer Dispute Windows

Ambetter from Coordinated Care lists 180 days from the date of service on Ambetter's Washington quick reference guide, the first Google result for the national query. Its reconsideration and dispute form allows 24 months from the original EOP or denial for participating and non-participating providers.

Ambetter timely filing in Washington state is standard up front and generous on the back end. Level I requests go to P.O. Box 5010 and Level II disputes to P.O. Box 5000 in Farmington, Missouri. Check the Washington manual for the non-participating and COB windows, which the guide and form don't state.

How to Confirm Your State's Ambetter Timely Filing Guidelines

Use these five steps for any state missing from the table, including Ohio, Illinois, Indiana, and Mississippi, and again whenever a plan posts a new guide.

1. Read the plan name on the member's ID card.
2. Open that plan's Provider Resources page, then Manuals and Forms.
3. Open the Claims, Disputes and Recovery guide and the current Provider and Billing Manual, then find "Timely Filing."
4. If two documents disagree, follow the newer dated one, the way South Carolina's notice overrides its old quick reference guide.
5. Check your participation agreement, which can set its own window.

Log each plan's windows and the document's version date in your payer deadline sheet, so the next person on the account works from the same numbers.

Billing Ambetter in more than one state means running several clocks at once, and you lose the claims no one was assigned to watch. AR follow-up by filing deadline works aging claims by how close each one sits to its window, with dollar value as the second sort.

Ambetter Corrected Claim Timely Filing Limit

The Ambetter corrected claim timely filing limit runs from the date on the original claim's Explanation of Payment (EOP). Ambetter from Fidelis Care in New York allows 60 days from the remittance advice. Other Ambetter manuals have long grouped corrected claims with reconsiderations and disputes, so use your state's reconsideration window and confirm it in the current manual.

When the Corrected Claim Clock Starts

Ambetter timely filing for a corrected claim starts at the original claim's EOP date. A correction replaces a claim Ambetter already processed, so it can't exist until the plan adjudicates the first claim and sends you an EOP. The date of service drops out of the math at that point.

Ambetter's manuals uphold the prior decision when a correction or reconsideration arrives after the window, unless you document a qualifying circumstance. If the original claim rejected, you have no EOP and no claim number to correct, and the initial filing clock is still the one running.

How to Submit a Corrected Claim to Ambetter

Meeting the Ambetter timely filing limit for corrected claims won't help if the correction rejects at the front door. Ambetter's North Carolina guide lists "Original Claim Number Required" as its fourth most common upfront rejection, right behind member ID, taxonomy, and date of birth errors.

Ambetter corrected claim fields by channel

Use original red and white forms for paper corrections. The Washington dispute form warns that photocopied, black and white, or handwritten forms of any submission type cause an upfront rejection, and the nine current claims guides we pulled say Ambetter won't accept handwritten, faxed, or replicated claim forms.

Mail paper corrections to the Ambetter claims address for your state, P.O. Box 5010 in most plans, and keep them out of the dispute mailbox. A correction that lands in disputes sits in the wrong queue while your window keeps running.

Frequency Code 6 and Other Corrected Claim Mistakes

Some clearinghouse help pages describe frequency code 6 as a corrected claim. Ambetter's North Carolina guide lists frequency code 7 for a replacement and 8 for a void, with no code 6, so send 7 when you're fixing a claim Ambetter already processed.

• Leaving off the original claim number. An electronic correction without the REF F8 segment rejects upfront, and Ambetter doesn't log it as received.
• Stapling the dispute form to a correction. The Tennessee and Washington dispute forms both tell providers not to include the form with a corrected claim, so send the fix and the appeal as two submissions.
• Correcting a rejection. A rejected claim has no Ambetter claim number to reference, so resend it as a new original claim.

Picture a biller who fixes a CPT code, sets frequency code 7, and forgets REF F8. The correction rejects, the acknowledgment report sits unopened, and the Texas reconsideration clock keeps moving toward day 120.

Ambetter Appeal Timely Filing Limit: Reconsideration and Claim Dispute

The Ambetter appeal timely filing limit covers two levels: a Level I reconsideration counted from the original EOP or denial, and a Level II claim dispute that follows the Level I decision. Participating providers get 180 calendar days in Kansas, 120 in Texas, 90 in Florida, and 60 in South Carolina.

Level I Reconsideration and Level II Claim Dispute Deadlines

Ambetter calls a provider appeal a Level I reconsideration at the first step and a Level II claim dispute at the second. The Ambetter reconsideration timely filing limit starts at the original EOP. The Ambetter appeal filing limit for Level II starts at the Level I decision letter in Florida and at the most recent EOP in Kansas.

Ambetter reconsideration and claim dispute deadlines by state plan

Treat each level as its own Ambetter timely filing limit, with its own start date and its own mailing address. A Level I decision in Florida resets the count, while a Kansas dispute runs from the most recent EOP.

Provider Appeals and Member Appeals Run on Separate Tracks

Florida's appeals page splits the two tracks. A member appeal is due within 180 days of the Notice of Adverse Benefit Determination, while a provider's first level appeal is due within 90 days of the original EOP. Mixing up the two costs a provider 90 days of assumed runway.

Some guides describe a second provider level due in 60 days, followed by a third level of external review. Florida's page ties external review to members, who get up to 120 calendar days after the appeal resolution letter. For Florida providers, the ladder stops at Level II.

How to File an Ambetter Reconsideration or Claim Dispute

Ambetter timely filing for appeals depends on where the request lands and how it gets there. Kansas lets you file Level I through the secure provider portal, a call to Provider Services, or the mailed Ambetter reconsideration form. Level II requires the mailed form, per the Sunflower Health Plan dispute bulletin. Build each packet around three pieces:

• The Provider Request for Reconsideration and Claim Dispute Form, which serves as the Ambetter provider appeal form in most states.
• A copy of the EOP. Washington's form asks you to circle the claim numbers on a Level II request and attach the Level I response.
• Medical records for code edits, code audits, or authorization denials. Leave the original claim form out of the packet.

The Ambetter appeal mailing address changes by state and level. Florida and Georgia send claim disputes to P.O. Box 5010 in Farmington, Missouri. Washington splits Level I (P.O. Box 5010) from Level II (P.O. Box 5000), and Arkansas, Iowa, Pennsylvania, and South Carolina route disputes to P.O. Box 10341, Van Nuys, CA 91410.

Misrouted appeals lose days you can't win back. A corrected claim filed as a dispute, or a Level II sent before Level I closes, burns time on the clock. With Ambetter reconsideration and appeal support, our team sorts each denial by type before we file anything.

Ambetter Timely Filing for Secondary Claims and Coordination of Benefits

The Ambetter timely filing limit for a secondary claim starts on the date of the primary payer's Explanation of Payment. Most plans we verified allow 180 days from that EOP for participating providers. Florida and Tennessee allow 90, Texas allows 95, and Ambetter from Fidelis Care allows 90 days from receipt of the primary EOB.

Send the primary payer's EOB or EOP with the secondary claim and record its processing date in the claim notes. A secondary claim without primary payment details comes back as a coordination of benefits denial, and our breakdown of CO-22 coordination of benefits denials shows how to clear it.

Ambetter COB filing windows from the primary payer's EOP

Picture a primary commercial payer that takes seven months to adjudicate. The EOB arrives, and on a Texas Ambetter plan you now have 95 days. If that EOB sits in a mail stack for six weeks because it looks old, you've spent 42 of those days before your team keys the secondary claim.

Work each primary EOB the day it arrives, and confirm payer order at check-in. The primary insurer's delay doesn't eat into Ambetter's COB window, but a claim sent to Ambetter first wastes weeks on both sides.

Ambetter Grace Period Claims: What Happens When a Member Stops Paying

Marketplace members who receive advance payments of the premium tax credit get a grace period of three months when they stop paying premiums. Under 45 CFR 156.270, the plan must pay appropriate claims for the first month, may pend claims in months two and three, and must tell providers it may deny those pended claims.

What Your Remittance Shows During the Grace Period

Plans that follow the AMA grace period transaction guidance flag grace period claims with standard codes, so you can spot them before they turn into write-offs.

Grace period codes on the 277CA, 835, and 271

The AMA document describes best practices, and a plan can use different transactions. Ambetter from Arkansas Health & Wellness, for one, tells new providers its EOP shows "LZ Pend: Non-Payment of Premium" once a member passes the first 30 days without paying.

If the member doesn't pay in full, coverage ends on the first day of the grace period's second month. The 271 eligibility response for months two and three can return EB01 code 5, which X12 labels active pending investigation.

How to Handle Grace Period Claims

The Ambetter grace period doesn't pause the Ambetter timely filing limit. Submit grace period claims on schedule even when you expect a pend, because a claim you hold in your own system keeps aging against the window.

A pended claim carrying CARC 257 in months two and three isn't a denial yet. Track it until the plan reverses and pays it or denies it as PR-27. The PR group code makes the balance patient responsibility, so bill the patient under your financial policy and offer a payment plan early.

Before nonemergency visits, confirm premium status and the plan's termination date along with the active card. We run coverage termination date checks against the actual date of service, before the patient reaches the front desk.

Members without advance premium tax credits fall under their state's grace period rules instead, and those rules differ by state. Check the state plan's member materials before you assume the federal three months applies.

What Happens After an Ambetter Timely Filing Denial

Ambetter denies claims that miss the Ambetter timely filing limit with CO-29, the code for an expired filing limit. The CO group code marks the balance as a contractual obligation, which under most participation agreements bars you from billing the patient. You can still dispute the denial when you can prove Ambetter received the claim on time.

What CO-29 Means on an Ambetter Remittance

An Ambetter denied claim showing CO-29 carries two codes. CO is the group code for contractual obligation, and 29 is the reason code X12 defines as an expired filing time limit, per the X12 claim adjustment reason codes.

Search your denial reports for "CO29," "CO-29," and "CO 29." Practice management systems display the same code in different ways, and a search for one spelling undercounts the problem on your aging report.

Can You Bill the Patient After a Timely Filing Denial?

In most cases, no. CO-29 is a contractual write-off, so a participating provider can't move that balance to the patient under most agreements. A grace period denial coded PR-27 works the other way, because the PR group code makes that balance the patient's responsibility. Check your Ambetter participation agreement before you bill any timely filing balance.

Can a CO-29 From Ambetter Be Disputed?

Yes. Each current Ambetter claims guide we pulled describes the claim payment dispute process as built for denials that include untimely filing. Washington's reconsideration form even carries a checkbox for a claim denied for untimely filing in error, with proof of timely filing attached. File inside that level's window, such as 120 days from the EOP in Texas.

Original Medicare follows a stricter rule. A late filing denial there isn't an initial determination, so you can't appeal it at all, as our guide to Medicare CO-29 rules explains.

Build one argument per dispute. Either Ambetter received the claim on time, or a different clock applied, such as a COB or corrected claim clock. A documented qualifying circumstance gives you a third path. Stacking all three in one letter tells the reviewer you aren't sure which one holds.

What Counts as Proof of Timely Filing

Ambetter's documents don't rank evidence. This ranking reflects what proves payer receipt versus what shows your office sent something, so lead your dispute with the strongest item you have.

Proof of timely filing, strongest to weakest

Late Filing Exceptions

Ambetter manuals have recognized a narrow set of qualifying circumstances, such as a catastrophic event that disrupts the practice's operations or destroys its records, or administrative delays and errors by Ambetter or a regulator. Staff turnover and billing backlogs don't qualify. Check your current manual's list and attach documentation to the request.

Once CO-29s stack up on your Ambetter remits, the first question is which ones have proof of receipt behind them. Our work on recovering CO-29 timely filing denials starts with each claim's history, before we draft a letter.

How to Keep Ambetter Claims Inside the Filing Window

Ambetter timely filing losses tend to start inside the practice, with charges that wait and rejections that sit unopened. Five habits keep your claims inside the window across each Ambetter state plan you bill, whether that's one plan or six.

1. Bill within 48 hours of the visit. Texas gives you 95 days, and a claim that sits unbilled for three weeks has already spent 21 of them.
2. Confirm acceptance on each claim by finding its Ambetter claim number, and route clearinghouse claims to the Ambetter Health payer ID, 68069, or to 11315 for Ambetter from Fidelis Care.
3. Work rejections daily in their own queue. A rejection doesn't stop the clock, so put clearinghouse rejection monitoring on the daily list instead of the monthly review.
4. Sort aging by days left. A $180 Texas claim at day 80 needs attention before a $2,400 Florida claim at day 30.
5. Keep a deadline sheet per state plan. List each plan's Ambetter timely filing limit, reconsideration window, and COB window, plus the version date of the guide you pulled them from.

Ambetter Provider Phone Numbers for Claim Status

Call Provider Services when a claim shows no status, and ask for the received date and the claim number. Log both with the call reference number, since Ambetter timely filing runs to the date of receipt and that date becomes your evidence.

Ambetter provider phone number for claim status, by state plan (verified September 23, 2026)

Aging claims without an owner are the ones that run out of time. Our accounts receivable follow-up team assigns each stuck claim to one person who works it until it's paid, appealed, or confirmed unrecoverable.

How Ambetter's Filing Limit Compares With Other Payers

At 180 days from the date of service in most states, the Ambetter timely filing limit sits between Cigna's 90 days for participating providers and Original Medicare's 12 months. Ambetter of Tennessee and Ambetter from Fidelis Care match Cigna's 90 days, and Texas lands close to it at 95.

A timely filing limit is the deadline a payer sets for receiving a claim, counted from the date of service or another trigger date written into the payer's rules. Each payer sets its own number, and your contract can override it.

Initial claim filing limits for participating providers

Our breakdown of Cigna timely filing limits walks through that payer's rules in the same format. For each payer on this list, your participation agreement controls when it sets a different window than the published one.

Outsourcing Ambetter Billing: What MedSole RCM Handles and What It Costs

MedSole RCM is a full-service revenue cycle management company that charges 2.99% of collections for medical billing and credentialing from $99 per payer application, with no setup fees and no long-term contracts. The team supports more than 4,000 providers across 75+ specialties in all 50 states.

For Ambetter accounts, the 2.99% covers eligibility and premium status checks before visits, claim scrubbing, submission within 24 hours of service, acceptance tracking, denial management, AR follow-up sorted by filing deadline, and payment posting with monthly reporting. The full scope sits on our medical billing at 2.99% page.

Most billing companies charge 4% to 7% of collections, and published credentialing rates run $100 to $500 per practitioner per payer. MedSole's rates sit below both ranges, and the billing rate includes software, reporting, and a dedicated account manager, items some vendors add as extra fees.

Credentialing ties into timely filing too. A provider who sees Ambetter members before the participation effective date bills as non-participating, which in Georgia cuts the initial window from 180 days to 90. Our credentialing from $99 per payer service files applications within 48 hours of complete documents and calls each payer weekly, for specialties from podiatry to behavioral health.

Practices that miss an Ambetter timely filing limit tend to know the rule. The missing piece is an owner for the claims sitting at day 70. Send us your aging report, and we'll show you which Ambetter balances you can still recover and how our full revenue cycle management team keeps the next batch inside the window.

Ambetter Timely Filing FAQs

Did the Ambetter Timely Filing Limit Change in 2026?

Not in the current documents we checked. For 2026, the Ambetter timely filing limit stays at 180 days in most states, and the Superior HealthPlan guide updated in October 2025 still lists 95 days for Texas. The most recent published change is South Carolina's move to 180 calendar days for claims received on or after July 1, 2024.

Recheck your state's claims guide each January, when the new plan year's documents post, and log the version date in your payer deadline sheet.

Is Ambetter Timely Filing Counted in Calendar Days or Business Days?

Calendar days, in the current documents that state a unit. The Texas, Tennessee, Missouri, and South Carolina claims guides all specify calendar days, and Kansas uses calendar days for disputes. South Carolina counted business days until July 1, 2024, and Fidelis Care counts medical necessity appeals in business days, so read the unit next to each number.

Is the Ambetter Corrected Claim Timely Filing Limit the Same as the Ambetter Appeal Timely Filing Limit?

In most plans, yes. Both run from the original EOP, and Ambetter's manuals have grouped corrected claims with reconsiderations and disputes under one window. New York differs: Fidelis Care allows 60 days from the remittance advice for corrected claims and 60 business days for medical necessity appeals.

Even when the windows match, the routing doesn't. A correction goes to the claims address as a replacement claim, and an appeal goes to the dispute address with the reconsideration form attached.

How Long Does Ambetter Take to Process a Claim or Dispute?

Processing time depends on the state plan, and most Ambetter documents we checked don't publish a single standard. Florida reviews reconsiderations and disputes within 60 days. Ambetter from Fidelis Care processes clean electronic claims within 30 days and clean paper claims within 45 days. Your state's prompt pay law sets the outer limit.

Can Ambetter Provider Relations File a Reconsideration for Me?

No. Sunflower Health Plan's Kansas bulletin states that Provider Relations representatives can't submit reconsiderations or claim disputes for a provider. Your practice or its billing company files through the secure portal, Provider Services, or the mailed form, and you should keep the portal confirmation or call reference number with the claim.

Does Ambetter Pause the Filing Clock While Credentialing Is Pending?

No. The filing clock runs from the date of service whether or not your enrollment is finished, and a provider without a participation effective date bills as non-participating. In Arkansas, Georgia, and Pennsylvania, that cuts the initial window from 180 days to 90. Confirm your effective date in writing before you schedule Ambetter members.

MedSole RCM handles payer enrollment from $99 per payer application and tracks each provider's effective date, so your team knows which providers can bill Ambetter at participating rates today.

How Much Does It Cost to Outsource Ambetter Billing and Credentialing?

Most medical billing companies charge 4% to 7% of collections. MedSole RCM charges 2.99% of collections with no setup fees and no long-term contracts, and credentialing starts at $99 per payer application. A practice collecting $500,000 a year pays $14,950 for billing at 2.99%, compared with $35,000 at a 7% rate.

Sources and How This Guide Is Verified

Each figure in this guide comes from the state plan's own document, and the tables name that document and its date. We reviewed outside payer databases and left them out as sources, because their Ambetter timely filing limit figures conflict with each other and with Ambetter's own guides.

We recheck these figures each quarter and whenever a state plan posts a new manual or claims guide. If a number here doesn't match your manual or contract, tell us, and we'll verify it and update the page.

Change Log for This Guide

• September 23, 2026: First published and verified against the current Ambetter claims guides below, including South Carolina's July 1, 2024 change to 180 calendar days.

Documents Used to Verify This Guide

• Ambetter from Superior HealthPlan claims, disputes and recovery guide (Texas), October 2025
• Ambetter from Absolute Total Care claims processing change notice (South Carolina), effective July 1, 2024
• Ambetter from Absolute Total Care claims, disputes and recovery guide, October 2025
• Ambetter from Absolute Total Care quick reference guide (still lists 120 days as of September 2026)
• Ambetter of Tennessee claims, disputes and recovery guide, August 2025
• Ambetter from Peach State Health Plan claims, disputes and recovery guide (Georgia), June 2025
• Ambetter from Arkansas Health & Wellness claims, disputes and recovery guide, October 2025
• Ambetter Health of Iowa claims, disputes and recovery guide, October 2024
• Ambetter from Home State Health claims, disputes and recovery guide (Missouri), February 2026
• Ambetter from PA Health & Wellness claims, disputes and recovery guide, October 2025
• Ambetter Health (Florida) claims, disputes and recovery guide, August 2025
• Ambetter Health (Florida) member and provider appeals comparison
• Ambetter from Arizona Complete Health quick reference guide
• Ambetter from Coordinated Care quick reference guide (Washington)
• Ambetter from Coordinated Care reconsideration and claim dispute form (Washington)
• Ambetter from Sunflower Health Plan claim process bulletin (Kansas), June 21, 2023
• Ambetter of North Carolina upfront rejections provider guide, November 7, 2023
• Ambetter from Arkansas Health & Wellness new provider orientation
• 45 CFR 156.270, termination of coverage for qualified individuals (eCFR)
• American Medical Association grace period electronic notification best practices
• X12 claim adjustment reason codes