UnitedHealthcare's commercial plan appeal timely filing limit (TFL) is commonly cited as 65 calendar days from the denial date—shorter than Aetna (180 days), BCBS (180 days), and Cigna (180 days). UHC's own appeals guidance does not publish one fixed commercial number — it states timelines vary and directs providers to their Participation Agreement, so confirm the exact window in your contract before calendaring it. Medicare Advantage appeals: 60 days (CMS-mandated). Initial claim TFL: 90 days commercial, 365 days Medicare Advantage. Corrected claim TFL: commonly cited as 180 days from the original remittance date (RA-based) for commercial plans, though UHC's own claim-correction guidance measures the window from the date of service under your contract — verify which basis your Participation Agreement uses; 365 days from date of service (DOS-based, CMS-mandated) for Medicare Advantage. Providers have a combined 12-month window to complete both reconsideration and formal appeal.
Key statistic
UnitedHealthcare denied 20% of in-network ACA marketplace claims in Plan Year 2024 — down from 33% in 2023 (CMS data analyzed by MoneyGeek, January 2026). It also denies an industry-high 12.8% of Medicare Advantage prior authorization requests, of which roughly 80% are overturned on appeal (KFF analysis of CMS data, 2024). UHC's commonly-cited 65-day commercial appeal window — the shortest of any major payer, if your contract uses it — is why most valid appeals are never filed in time. Confirm the actual figure in your Participation Agreement rather than assuming it.
Why UHC Timely Filing Rules Are Different
UHC's commercial plan appeal deadline is commonly cited at 65 calendar days — shorter than Aetna, BCBS, and Cigna, which each allow 180 days — but UHC does not publish one universal commercial figure. UnitedHealthcare is the largest private health insurer in the United States, with tens of millions of members across commercial, Medicare Advantage, Medicaid managed care, and Federal Employee programs. UHC's own provider appeals page states timelines vary and directs providers to their Participation Agreement for the controlling deadline, so treat 65 days as the widely-used default to verify, not a fixed rule.
The core issue: UHC's appeal window for commercial plans is commonly reported as the shortest in the industry among major payers — around 65 days versus 180 for most competitors. If your billing team is working off generic appeal deadlines without confirming the contract-specific figure, you may be forfeiting valid claims without knowing it.
Confirm Your Contract's Deadline — Don't Assume 65 Days
UHC commercial plan appeal deadline is commonly cited as 65 calendar days from denial date, versus 180 for Aetna, BCBS, and Cigna. But UHC's own appeals guidance says timelines vary by Participation Agreement — verify the actual number in your contract before calendaring it. Working with multiple payers off an assumed calendar is how practices lose appeal rights.
There are also two distinct deadline categories that practices frequently confuse: claim submission deadlines (how long you have to submit the original claim) and appeal timely filing deadlines (how long you have to contest a denial). Both are different. Both have consequences if missed.
UHC Claim Submission Deadlines by Plan Type
Most UHC commercial contracts set the claim submission deadline at 90 days from the date of service; Medicare Advantage claims get 365 days under CMS mandate. These are the deadlines for initial claim submission—how long after the date of service you have to submit a clean claim to UHC.
| Plan Type | Timely Filing Limit | Starts From | Notes |
|---|---|---|---|
| Commercial (most contracts) | 90 days | Date of service | Verify in your participation agreement—some contracts allow up to 180 days |
| Commercial (extended contract) | 180 days | Date of service | Less common; requires explicit contract language |
| Medicare Advantage | 365 days | Date of service | CMS mandates a 1-year window for MA claims |
| Medicaid / Community Plan | Varies by state | Date of service | Typically 90–180 days; confirm with your state-specific UHC Community Plan |
| Corrected Claims | 180 days (commonly cited) | Original remittance date — verify with your contract | UHC's own claim-correction guidance describes a DOS-based window; confirm which basis your Participation Agreement uses |
Claim timely filing limits are set in your provider participation agreement with UHC, not in a universal policy. The 90-day standard applies to most commercial contracts, but your agreement controls. Per the UHC Provider Administrative Guide (2025), providers should always verify the specific timely filing language in their individual participation agreement rather than relying on general industry defaults.
Medicare Advantage Claims: 365 Days
CMS regulations require payers to accept Medicare Advantage claims submitted within one calendar year of the date of service. UHC follows this rule across its MA product lines. This is materially more generous than UHC's commercial claim deadline.
UHC Appeal Timely Filing Deadlines by Plan Type
UHC's commercial provider appeal deadline is commonly cited as 65 calendar days from the adverse determination date, though UHC's own appeals page defers the exact figure to your Participation Agreement; Medicare Advantage member-level appeals are 60 days under CMS rules. These are the deadlines to contest a denial—separate from initial claim submission. Missing these eliminates your appeal rights.
| Appeal Type | Deadline | Starts From | Decision Timeline |
|---|---|---|---|
| Commercial plan (provider appeal) | 65 calendar days (commonly cited — confirm in your contract) | Date of adverse determination on EOB/denial notice | 30 days (pre-service); 60 days (post-service) |
| Commercial plan (reconsideration + appeal) | 12 months total | Date of original claim denial | Both Step 1 and Step 2 must be completed within 12 months |
| Medicare Advantage (member-level) | 60 days | Date of coverage denial notice | 30 days (pre-service expedited); 60 days (standard post-service) |
| Part D drug coverage appeal | 60 days | Date of coverage denial | 72 hours (expedited); 7 days (standard) |
| Medicaid / Community Plan | Varies by state | Date of denial | Confirm with state-specific UHC Community Plan provider manual |
| Expedited pre-service (commercial/MA) | Before service date | N/A—must be filed before planned service | 72 hours from receipt of request |
| Peer-to-peer review (pre-service) | Within 24 hours of denial | Date of coverage denial | Inpatient: 3 business days; Outpatient: 21 calendar days |
The 12-month provider window (for commercial plan reconsideration + appeal) is the most commonly misunderstood deadline. Per UHCProvider.com's appeals page, providers have a combined 12 months to: (1) file a claim reconsideration request, and (2) file a formal appeal if they disagree with the reconsideration outcome. Both steps must happen within that 12-month window, not 12 months each.
Commonly-Cited 65 Days vs. 12 Months: Which Applies to You?
A 65-day deadline is commonly reported for member-initiated appeals on commercial plans, though UHC does not publish it as one fixed universal number — confirm the exact figure against the denial notice or your Participation Agreement. The 12-month combined window applies to providers filing reconsiderations and post-service appeals, and is documented directly on UHCProvider.com's appeals page. Both are legitimate categories of UHC deadline — they apply to different situations.
UHC Corrected Claim Timely Filing Limits
UHC commercial corrected claims are commonly described as running on a remittance-based (RA-based) window of 180 days from the original ERA/EOB date — but UHC's own published claim-correction guidance describes a date-of-service-based window governed by your Participation Agreement, not a separate RA-based reset. Confirm which basis applies to your contract before relying on either figure. Medicare Advantage corrected claims use a date-of-service (DOS-based) window: 365 days from date of service under CMS mandate — this figure is CMS-mandated and not in dispute. A corrected claim is a separate administrative track from an appeal — it applies when the original claim was adjudicated but contained a coding, modifier, or patient information error.
| Plan Type | Corrected Claim Deadline | Window Basis | Starts From | Notes |
|---|---|---|---|---|
| Commercial (most contracts) | 180 days (commonly cited) | RA-based (commonly cited) — verify | Original remittance (ERA/EOB) date, per common practice — but confirm against your Participation Agreement | UHC's own claim-correction guidance describes a DOS-based, contract-governed window; submit via UHCProvider.com with reason code 7 (replacement) or 8 (void/cancel); paper no longer accepted for most network providers |
| Medicare Advantage (AARP MedicareComplete) | 365 days | DOS-based | Date of service | Same CMS-mandated window as original MA claims; must include corrected-claim indicator on the claim |
| UHC Dual Complete (D-SNP) | 365 days | DOS-based | Date of service | CMS MA rules apply; Medicaid wraparound billed separately to the state Medicaid agency |
| Medicaid / Community Plan | 90–180 days (varies by state) | RA-based | Original remittance date | Confirm with your state-specific UHC Community Plan provider manual — state contracts override commercial defaults |
| Surest (formerly Bind) | 90 days | RA-based | Original remittance date | Surest uses UHC's standard commercial TFL; verify in Surest Provider Network Guide available on UHCProvider.com |
Corrected claims do not count against your commercial appeal window — they run on a separate administrative track. If UHC denies the corrected claim, the appeal clock starts fresh from the date of that new denial, not from the original claim date. Submitting a corrected claim first (when a billing error caused the denial) is the correct sequence before escalating to a formal appeal.
For the full UHC corrected claim breakdown — commercial, Medicare Advantage, Community Plan, and UMR rules, plus frequency code 7 submission steps and CO-29 appeal documentation — see the UHC Corrected Claim Timely Filing Limit 2026 guide. For a complete multi-payer comparison of corrected claim windows — including Cigna's 90-day RA-based rule, Anthem's 365-day DOS window, and Humana's no-reset policy — see the corrected claim timely filing limits guide.
UHC Plan Subtypes: AARP, Oxford, and Surest Timely Filing
All UHC Medicare Advantage products — AARP MedicareComplete, UHC Dual Complete, and Group Medicare Advantage — follow the CMS-mandated 365-day claim window and 60-day appeal deadline regardless of brand name. Oxford Health Plans (NY/NJ) and Surest are UHC commercial subsidiaries that use UHC's standard commercial rules — 90 days for claims and a commonly-cited 65 days for appeals, subject to the same Participation Agreement verification as UHC's other commercial products.
| UHC Product | Claim TFL | Appeal TFL | Portal Entry Point |
|---|---|---|---|
| AARP MedicareComplete (HMO/PPO) | 365 days | 60 days from denial notice | UHCProvider.com → Medicare Advantage tab; plan number on EOB header starts with 'H' |
| UHC Dual Complete (D-SNP) | 365 days | 60 days from denial notice | UHCProvider.com; Medicaid cost-sharing billed separately to state Medicaid agency |
| Group Medicare Advantage (Employer MA) | 365 days | 60 days from denial notice | Same portal; employer group plan number on EOB header identifies the Group MA product |
| Optum (UHC behavioral health / specialty) | Varies (90 days most commercial) | ~65 days commercial (verify) / 60 days MA | Optum appeals route through UHCProvider.com unless the plan specifies a separate Optum portal |
| Oxford Health Plans (NY/NJ) | 90 days | ~65 days from denial date (commonly cited — confirm in contract) | Oxford Provider Portal (OHP) or UHCProvider.com; Oxford uses UHC standard commercial TFL rules |
| Surest (formerly Bind) | 90 days | ~65 days from denial date (commonly cited — confirm in contract) | UHCProvider.com → Surest tab; Surest Provider Network Guide on UHCProvider.com for plan-specific guidance |
| UMR (self-funded TPA) | Per plan document (commonly 90 days) | Per plan document — 180-day ERISA floor | umr.com — NOT UHCProvider.com |
The most common routing error with AARP MedicareComplete is filing through the commercial portal rather than the Medicare Advantage portal — this delays the 30-day CMS decision clock. The plan number prefix on the EOB header (starting with 'H' for HMO or 'R' for PPO MA) identifies the product type for portal routing.
For the full breakdown of UHC Medicare Advantage deadlines — including the separate 60-day non-contracted payment reconsideration track, the 120-day non-contracted payment dispute track, contracted-provider routing, and D-SNP Medicaid crossover rules — see the UHC Medicare Advantage Timely Filing Guide 2026.
UMR is the subtype that costs practices the most appeal time. UMR is UnitedHealthcare's third-party administrator for self-funded employer plans — claims and appeals route through umr.com, not UHCProvider.com, and the deadlines come from each employer's plan document rather than UHC's standard contract. Critically, because UMR administers self-funded ERISA group health plans, federal law (29 CFR §2560.503-1) requires a minimum of 180 days to file an internal appeal — nearly three times UHC's commonly-cited 65-day commercial window. Billing teams that apply UHC's fully-insured commercial deadline to a UMR denial forfeit appeal time they are legally entitled to. Confirm the plan is UMR-administered by the umr.com claims address or the "UMR" mark on the member ID card before calendaring the deadline. For the full breakdown of UMR's plan-specific claim, appeal, and corrected-claim windows, see the UMR timely filing and appeal guide.
The UHC Two-Step Appeal Process
UHC's commercial post-service appeal process requires two sequential steps — skipping reconsideration and filing a formal appeal directly is the most common administrative error. UnitedHealthcare structures its commercial post-service appeal process in two mandatory steps.
Step 1: Claim Reconsideration
A claim reconsideration is not a formal appeal—it is a request for UHC to review a claim that was processed incorrectly or denied due to a billing issue. Examples: wrong modifier, missing prior auth that was actually obtained, coordination of benefits error, or a claim denied as a duplicate in error.
File reconsiderations through the UHCProvider.com portal. Most network providers are now required to submit digitally; UHC eliminated paper and fax reconsideration intake for most plan types.
Step 2: Formal Appeal
If the reconsideration does not resolve the denial, you may file a formal appeal. This is the appropriate step for clinical denials where you are contesting the medical necessity determination itself. For appeals, you should include:
- Denial letter with denial code and rationale
- Clinical documentation supporting medical necessity
- Reference to the relevant UHC Coverage Determination Guideline (CDG) or InterQual criteria
- Physician attestation when contesting a clinical determination
UHC Formal Appeal Letter Template
Copy this for a Step 2 formal appeal. It includes a timeliness statement near the top — before you send it, fill in your Participation Agreement's actual commercial appeal deadline (commonly 65 days, but confirm) rather than assuming the industry default, since UHC reviewers close appeals as untimely before reading the clinical argument.
[Date]
UnitedHealthcare
Provider Appeals
[Address from your denial letter — verify, it varies by plan]
RE: Formal Appeal (Step 2) — [Plan Type: Commercial / Medicare Advantage / Oxford / Surest]
Member: [Patient Full Name]
Member ID: [UHC Member ID]
Date of Birth: [MM/DD/YYYY]
Group #: [Group Number, if applicable]
Claim #: [Claim Number from EOB]
Date of Service: [MM/DD/YYYY]
Denial Date: [MM/DD/YYYY]
Reconsideration Reference #: [From Step 1 outcome]
Provider: [Your Practice Name] | NPI: [Your NPI Number]
Tax ID: [Your TIN]
Dear Appeals Reviewer:
This is a formal appeal of the denial of the above-referenced claim. Claim reconsideration was completed on [RECONSIDERATION DATE] under reference [NUMBER] and did not resolve the denial.
TIMELINESS:
The denial is dated [DENIAL DATE]. This appeal is submitted on [TODAY'S DATE], which is [N] calendar days from the denial date and within the [INSERT YOUR CONTRACT'S COMMERCIAL DEADLINE — commonly 65 days but confirm in your Participation Agreement / 60-day Medicare Advantage] appeal filing window.
DENIAL REASON:
UnitedHealthcare denied this claim stating: "[exact denial language from the EOB or denial letter]" (Denial Code: [CODE]).
BASIS FOR APPEAL:
[State the clinical or contractual argument. For a medical necessity denial, cite the governing criteria by name and number:]
This service meets the criteria set out in UnitedHealthcare Coverage Determination Guideline [CDG NAME / NUMBER] and [InterQual / MCG] criteria for [CONDITION / PROCEDURE]. Specifically:
- [Criterion #1 from the CDG] — met, documented by [chart reference, date].
- [Criterion #2] — met, documented by [chart reference, date].
- [Criterion #3] — met, documented by [chart reference, date].
CLINICAL SUMMARY:
[Patient Name] is a [age]-year-old [gender] with [DIAGNOSIS] (ICD-10: [CODE]). [Summarize presentation, objective findings, and severity in 3-5 sentences.]
Conservative management attempted prior to the service at issue:
1. [Treatment], [dates] — outcome: [objective result, why insufficient].
2. [Treatment], [dates] — outcome: [objective result, why insufficient].
ENCLOSED DOCUMENTATION:
1. Denial letter dated [DATE] with denial code and rationale.
2. Reconsideration determination dated [DATE].
3. Clinical notes for dates of service [RANGE].
4. [Diagnostic reports / imaging / lab results supporting medical necessity].
5. Physician attestation, signed [DATE].
RELIEF REQUESTED:
Overturn the denial and reprocess claim [CLAIM NUMBER] for payment at the contracted rate.
Please issue a written determination within the plan's standard processing period. If this appeal is upheld, identify the specific criteria not met, the reviewer's credentials and specialty, and the external review rights and deadlines that apply.
Sincerely,
[Physician Name], [Credentials]
[Title]
[Practice Name]
[Phone] | [Email]
Enclosures: [list documents]Skip the blank template. Start with a review-ready draft.
Use the template as guidance, or let Muni prepare a payer-specific draft for your team to verify, sign, and submit.
For CDG citation guidance and additional denial-type variants, see our UHC Appeal Letter Template 2026.
What Happens If You Miss UHC's Timely Filing Deadline
A missed claim submission deadline generates a CO-29 denial and typically terminates your right to collect; a missed appeal deadline may still be recoverable if you document a valid exception reason. Missing the claim submission deadline results in a CO-29 or CO-4 denial code and typically terminates your right to collect—from UHC and from the patient under most contracts.
Missing the appeal deadline is more nuanced:
For claim timely filing denials (CO-29): UHC will consider an exception if you can demonstrate a valid reason the claim could not be submitted within the window. Valid reasons typically include:
- Retroactive eligibility changes (member not confirmed active during service)
- Coordination of benefits delays with a primary payer
- UHC system errors or processing failures documented by UHC
For appeal deadline misses: UHC's policy permits late appeal filings if you provide a valid reason for the delay. This is not automatic—you must document the reason and include it with the appeal submission.
UHC Timely Filing Exception Request Template
Use this when the window has already closed. Lead with the exception reason — a late appeal that opens with the clinical argument tends to be closed as untimely before the argument is read.
[Date]
UnitedHealthcare
Provider Appeals
[Address from your denial letter]
RE: Timely Filing Exception Request — [CO-29 / CO-4 Denial]
Member: [Patient Full Name]
Member ID: [UHC Member ID]
Claim #: [Claim Number from EOB]
Date of Service: [MM/DD/YYYY]
Denial Date: [MM/DD/YYYY]
Provider: [Your Practice Name] | NPI: [Your NPI Number]
Dear Appeals Reviewer:
I am requesting an exception to the timely filing requirement for the above-referenced claim, denied [CO-29 / CO-4] on [DENIAL DATE]. I acknowledge the filing was outside the standard window and am documenting the reason below, as permitted under UnitedHealthcare's late-filing policy.
REASON FOR DELAY:
[Select the one that applies — delete the others. "We did not track the deadline" is not an accepted reason; do not submit this letter without one of the below:]
- Retroactive eligibility: The member was not confirmed active with UnitedHealthcare at the time of service. Coverage was established retroactively on [DATE], after the filing window for [DOS] had closed. Eligibility verification record from [DATE] enclosed.
- Coordination of benefits delay: The primary payer, [PRIMARY PAYER], did not issue its determination until [DATE]. This claim was submitted [N] days after receipt of the primary EOB. Primary EOB enclosed.
- UHC system or processing error: [Describe — e.g. the claim was accepted by the UHCProvider.com portal on DATE, confirmation NUMBER, but does not appear in the plan's claim history]. Portal confirmation enclosed.
- Clearinghouse outage: [Vendor] experienced a documented service disruption from [START] to [END]. Vendor incident report enclosed.
SUPPORTING DOCUMENTATION ENCLOSED:
1. [Eligibility record / primary payer EOB / portal confirmation / vendor incident report].
2. Copy of the original claim and every submission attempt, with dates.
3. Copy of the EOB showing the timely filing denial.
The services were rendered as billed and no clinical or coding denial reason was cited. The delay is attributable to [restate the cause in one clause], which falls within the exception categories UnitedHealthcare recognizes.
RELIEF REQUESTED:
Accept this exception request and reprocess claim [CLAIM NUMBER] for payment at the contracted rate.
If this request is denied, please identify the specific policy provision relied upon and confirm what further review rights remain, along with their deadlines.
Sincerely,
[Name], [Credentials]
[Title]
[Practice Name]
[Phone] | [Email]
Enclosures: [list documents]No Exception for Administrative Oversight
"We didn't track the deadline" is not a valid exception reason at UHC. Missed deadlines due to administrative errors are generally not recoverable. Use a verified practice calendar and documented ownership for every active appeal.
How to Submit UHC Appeals in 2026
UHC requires digital submission of reconsiderations and appeals for most network providers — paper and fax intake have been eliminated for commercial, Medicare Advantage, and most Medicaid products. As of 2023, UHC requires most network providers to submit reconsiderations and appeals digitally. Paper and fax submission are no longer accepted for most plan types.
Turn this denial into a review-ready draft.
Muni prepares a payer-specific appeal, policy citations, and an evidence checklist. Your team reviews and submits it.
Digital submission:
- Portal: UHCProvider.com — Provider Portal
- API: EDI/API submission for high-volume billing teams and clearinghouses
- Confirmation: UHC provides immediate receipt confirmation and a tracking number upon digital submission
UHC's digital requirement applies to:
- Commercial plan reconsiderations and post-service appeals
- Medicare Advantage appeals
- UHC Community Plan (Medicaid) in most states
For UHC Community Plan Medicaid specifically — including the two-step reconsideration and formal appeal process, state fair hearing rights, and state-specific program routing — see the UHC Community Plan Medicaid appeal guide 2026.
Exceptions to digital requirement: Some federally facilitated marketplace (FFM/ACA exchange) plans and certain state-specific products may still accept paper. Verify with your state-specific UHC provider manual before mailing.
For prior authorization denials (as opposed to post-service claim denials), the prior auth appeal process runs through a separate workflow—see our UHC Prior Authorization Template 2026 for the PA-specific process.
How Muni Appeals Supports UHC Timely-Filing Review
Manually tracking UHC's contract-specific appeal window (commonly 65 days for commercial), the 12-month combined reconsideration + appeal window, and claim submission deadlines across commercial and Medicare Advantage panels is a high-error process at any practice volume.
Muni Appeals reads uploaded UHC denial materials, surfaces deadline risk, and prepares a review-ready appeal packet. Staff verifies the controlling deadline and submission channel. The workflow provides:
- Surfaces deadline risk from the uploaded EOB; staff verifies and calendars the controlling UHC window
- Surfaces coarse risk for the reconsideration and appeal window from the uploaded notice; staff verifies the governing contract and calendars the deadline
- Surfaces candidate CDG citations relevant to the denial code for staff verification
- Provides UHC provider-portal submission guidance for staff to verify before filing
Frequently Asked Questions
What is UHC's timely filing limit for commercial claims?
Most UHC commercial contracts set the claim submission deadline at 90 days from the date of service. Some contracts extend this to 180 days. The specific limit is in your provider participation agreement with UHC—the 90-day standard is the most common but not universal.
What is the UHC appeal deadline for commercial plans?
The appeal timely filing deadline for UHC commercial plans is commonly cited as 65 calendar days from the date of the adverse determination — notably shorter than Aetna, BCBS, and Cigna, which each allow 180 days. UHC does not publish this as one fixed universal figure, though; its own appeals guidance states timelines vary and directs providers to their Participation Agreement, so confirm the exact deadline in your contract rather than assuming 65 days applies.
How long do providers have to appeal UHC Medicare Advantage claims?
For UHC Medicare Advantage plans, the member-level appeal deadline is 60 days from the denial notice. At the provider level, UHC requires that the combined reconsideration and formal appeal process be completed within 12 months of the original claim denial.
Can I still file an appeal if I miss UHC's timely filing deadline?
UHC allows late appeals if you can provide a valid reason for the delay. Accepted reasons typically include retroactive eligibility corrections, coordination of benefits delays with a primary payer, or documented UHC processing errors. Administrative oversight is not typically accepted as a valid exception.
What is the difference between UHC claim timely filing and appeal timely filing?
Claim timely filing is the window to submit the original claim after the date of service (typically 90 days for commercial). Appeal timely filing is the window to contest a denial after you receive it (commonly 65 days for commercial, though UHC defers the exact figure to your Participation Agreement). These are completely separate deadlines with separate consequences.
Does UHC accept paper appeal submissions?
No—for most network providers and plan types, UHC requires digital submission of reconsiderations and appeals through the UHCProvider.com portal or API. Paper and fax intake has been eliminated for commercial, Medicare Advantage, and most Medicaid products. Check your state-specific UHC Community Plan provider manual if you have questions about your specific product.
What is UHC's expedited appeal deadline?
Expedited pre-service appeals are available when the standard review timeline would "seriously jeopardize the member's life, health, or ability to regain maximum function," per UHCProvider.com. The request must be filed before the planned service, and UHC issues a decision within 72 hours. Expedited review is not available for services already rendered.
How does UHC timely filing compare to other major insurers?
UHC's commercial appeal deadline is commonly cited as 65 calendar days — the most restrictive among major payers if your contract uses that figure, since Aetna, BCBS, and Cigna each allow 180 days for commercial plan appeals. Confirm the actual number in your Participation Agreement rather than assuming it. For claim submission, UHC's 90-day commercial window is similar to the industry standard. UHC's Medicare Advantage claim window (365 days) matches the CMS-mandated floor for all MA plans. For a full comparison, see our insurance denial rate comparison guide.
What denial code does UHC use for timely filing denials?
UHC uses CO-29 (time limit for filing has expired) for claim submissions received after the timely filing deadline. You may also see CO-4 (the service/procedure/revenue code is inconsistent with the patient's age) in cases where the claim routing error triggered a late submission. CO-29 denials are the most difficult to overturn without documented proof of an exception reason.
What is the timely filing limit for corrected claims with UHC?
180 days from the original remittance date (the ERA or EOB) is the commonly-cited window for a corrected commercial claim, but UHC's own published claim-correction guidance describes a date-of-service-based window governed by your Participation Agreement rather than a separate RA-based reset — confirm which basis your contract uses before relying on either figure. Medicare Advantage corrected claims follow the CMS-mandated 365-day window (not in dispute). Submit corrected claims via UHCProvider.com with reason code 7 (replacement) or code 8 (void and cancel). A corrected claim is a separate track from an appeal — if UHC denies the corrected claim, the commercial appeal window starts fresh from the date of that denial. For the full breakdown by plan type including Community Plan and UMR rules, see the UHC corrected claim timely filing guide.
What is the timely filing limit for AARP MedicareComplete claims?
AARP MedicareComplete is a UHC Medicare Advantage product. Like all MA plans, it follows the CMS-mandated 365-day claim submission window from the date of service. The appeal deadline is 60 days from the denial notice. Submit through UHCProvider.com under the Medicare Advantage portal tab — the plan number on the EOB header starting with 'H' (HMO) or 'R' (PPO) identifies it as an MA product.
What is the Oxford Health Plans timely filing limit?
Oxford Health Plans operates in New York and New Jersey as a UHC subsidiary. Oxford follows UHC's standard commercial timely filing rules: 90 days for initial claim submission and a commonly-cited 65 days for appeals from the denial date — verify the exact appeal figure in your contract, since Oxford doesn't have a separate TFL schedule and mirrors standard UHC commercial contract terms.
What is the Surest (formerly Bind) timely filing limit?
Surest is a UHC commercial health plan product. It uses UHC's standard commercial timely filing limits: 90 days for claim submission and a commonly-cited 65 days for appeals from the denial date. Submit through UHCProvider.com under the Surest portal tab. Verify the specific TFL in the Surest Provider Network Guide available on UHCProvider.com, as some employer group contracts may negotiate different windows.
What is the UMR timely filing limit, and is it the same as UHC?
No. UMR is UnitedHealthcare's third-party administrator for self-funded employer plans, and its timely filing limits are set by each employer's plan document — not UHC's standard commercial contract. Claim submission is commonly 90 days, but the appeal deadline is typically 180 days, because self-funded ERISA group health plans must allow claimants at least 180 days to file an internal appeal under federal law (29 CFR §2560.503-1). That is materially longer than UHC's commonly-cited 65-day commercial appeal window, so applying UHC's fully-insured commercial deadline to a UMR denial forfeits appeal time you are entitled to. Submit UMR claims and appeals through umr.com — not UHCProvider.com — and confirm the exact deadline in the plan document, since employers can set terms more generous than the ERISA floor. For the full plan-specific breakdown, see the UMR timely filing and appeal guide, and for a letter template built around the ERISA claims-procedure rights that apply, see UMR Appeal Letter Template 2026.
Can I resubmit a claim denied for timely filing as a new claim?
No. A claim denied for CO-29 cannot be resubmitted as a new claim—resubmission restarts the claim but does not change the original date of service, which is what determines timely filing compliance. The appropriate path is a reconsideration or appeal with documentation of a valid exception reason, such as retroactive eligibility or a primary payer coordination of benefits delay.
What is UHC's timely filing limit for Medicaid (Community Plan) claims?
UHC's Medicaid managed care product—UHC Community Plan—operates under state-specific contracts that set their own timely filing limits. These typically range from 90 to 180 days but vary by state. Providers billing UHC Community Plan should verify the timely filing deadline in their state-specific participation agreement, as these differ materially from UHC commercial plan rules.
Does the commonly-cited UHC 65-day appeal deadline apply to all network providers?
65 calendar days is the figure most widely reported as UHC's standard commercial contract term, but UHC does not publish it as a universal policy — the controlling number is whatever your executed Participation Agreement states, and some large health system or specialty group contracts negotiate different appeal windows. Check your participation agreement or contact your UHC Provider Relations representative to confirm the appeal deadline in your specific contract before relying on the 65-day default.
Ready to Stop Missing UHC Appeal Deadlines?
If you received a UHC denial and need to understand which appeal path applies — timely filing, medical necessity, prior auth, or coding — the UHC denied claim guide 2026 covers each denial type with specific action steps and deadlines.
UHC's commonly-cited 65-day commercial appeal window (confirm the actual figure in your contract) and required digital submission are the two most common administrative failure points for independent practices with UHC volume. Manual tracking across commercial, Medicare Advantage, and Community Plan panels compounds the risk.
With Muni Appeals:
- Deadline-risk guidance based on the uploaded EOB or denial notice
- Pre-built UHC appeal letter templates with CDG citations
- Submission guidance for staff using the UHC portal
- Separate reconsideration and formal-appeal checklist steps
This guide reflects 2026 UnitedHealthcare timely filing requirements as published on UHCProvider.com. UHC's own appeals guidance does not publish one fixed commercial appeal deadline — it states timelines vary by Participation Agreement. The 65-day commercial appeal figure and the 180-day RA-based corrected-claim figure used throughout this guide are widely-cited industry defaults, not confirmed UHC policy; always verify the actual deadlines in your current UHC participation agreement before relying on them. State-specific Community Plan (Medicaid) deadlines vary by state.