The Appeal Deadlines That Matter: Health Insurance Appeal Deadlines

Health insurance appeal deadlines: identify your plan and stage

Find out whether your coverage is an individual Marketplace policy, a private employer plan, Medicare Advantage, Original Medicare, Medicaid, or another arrangement. Then identify whether the notice is the initial denial, an internal appeal decision, or an independent review decision. Different stages can start different clocks.

A provider's deadline to submit a claim is not your deadline to appeal it. An insurer's deadline to decide your appeal is another separate period. Keep those dates distinct so a conversation about one does not cause you to miss another.

Health insurance appeal deadlines: common filing windows

Marketplace and many ACA-regulated plans: 180 days for internal appeals

HealthCare.gov describes filing an internal appeal within 180 days of receiving the denial notice. This applies to the insurance appeal process it describes, not every health coverage program. A Marketplace eligibility appeal is a different procedure.

Read the notice for the required form, signature, address or portal, and how the deadline is counted. Ask the insurer to confirm the last filing date in writing. Do not wait until the final day to discover a missing signature or the wrong submission destination.

Many private employer plans: at least 180 days

The Department of Labor's health-benefit claims guide explains that plans subject to its health-benefit claims rules must give at least 180 days to appeal a denied claim. Check the summary plan description and denial notice for your procedures.

These rules cover many private-sector workplace plans under ERISA, not every employer arrangement. Government and most church plans generally fall outside ERISA. Ask the plan administrator which rules and appeal levels apply rather than treating "employer plan" as one universal category.

Medicare Advantage: 65 calendar days for the first plan reconsideration

CMS's current Medicare Advantage reconsideration guidance gives 65 calendar days from the date of the organization-determination notice to request the first plan reconsideration. This is the current first-level filing rule, not the older 60-day figure you may see elsewhere.

CMS allows late requests for good cause under the applicable procedure. Ask the plan promptly if you missed a deadline; do not assume an extension will be granted. Later Medicare appeal levels use different notices and windows, so read each decision separately.

External review: commonly four months

HealthCare.gov's external review guide describes a four-month window to request external review after receiving the notice. This commonly follows the final internal denial, though eligible urgent situations can follow different procedures.

Your plan and state determine the applicable route. Four months is not necessarily 120 days. Ask the review administrator for the exact calendar deadline, eligibility requirements, and where to file. Medicare and Medicaid appeals should not be assumed to follow this commercial-insurance review process.

Build a deadline sheet in five steps

1. Save the notice. Keep the full letter and, when relevant, the envelope or delivery record.
2. Identify the trigger. Does the clock begin on the notice date, receipt date, or another event?
3. Confirm the last date. Ask the plan or review administrator how it counts days and handles delivery.
4. Record the destination. Note the accepted filing method, required forms, and signature.
5. Keep proof. Save the complete submission and its receipt, fax confirmation, or delivery record.

Record the expected decision date separately. If the notice is unclear or conflicts with another document, ask the administrator to resolve the discrepancy promptly in writing. If you believe the instructions are wrong, seek help from the appropriate regulator or assistance program; do not simply ignore the notice.

What does not necessarily stop the clock

A phone call, provider correction, records request, peer-to-peer discussion, or hiring a document preparer does not necessarily preserve or extend your appeal window. Ask whether a formal appeal is still required. If time is short, contact the plan about timely filing and whether additional evidence may follow under its rules.

The denial letter is your starting point for the exact dates. Deadlines vary by plan and state. Use the notice alongside the applicable rules, and promptly question any inconsistency rather than assuming a general article overrides your instructions.

If care cannot wait

Contact your treating clinician and insurer immediately about expedited procedures when a delay could seriously endanger your health. Eligible urgent cases can have different review processes, including situations where internal and external review proceed together. A routine packet service cannot determine medical urgency, extend a deadline, or replace emergency care.

For the whole process, read what to do after a denied claim, internal appeal steps, and external review eligibility. To understand the notice, read common denial reasons, how to read your EOB, denial codes decoded, and medical necessity denials.

Optional help keeping the documents together

For denied claims of $3,500 or more, the paid Denial Appeal Packet service includes a deadline sheet and organized appeal documents based on your records. A person reviews your case, and you keep every dollar you win back. You can file yourself, and purchasing a packet does not extend any deadline. This guide and service provide document organization, not legal advice.

Not sure what the bill or explanation of benefits is saying? Start with Bill Help or use Cura's medical bill and EOB explainer.