Cigna denial rate: none in the 2027 file. Here is how the appeal works, and your 180-day deadline.
Put in the date on your Cigna notice and get both federal deadlines as calendar dates.
Free, for a Cigna denial, and it runs entirely in your browser. The date, the plan type and the state you pick are never sent to us and never stored.
That date runs from the day printed on the notice, not the day you opened it, and if your employer pays the claims itself, your external review does not go to your state at all.
We checked Cigna's appeal steps against its own pages on November 5, 2026. We quote them below. Neither page gives you your due date. The 180 days run from the date on your notice.
Cigna Claim denied because of billing. Out of network
If Cigna denied a claim of yours, two dates matter more than any percentage. You have 180 days from the date on your denial notice to file the internal appeal, and then 4 months from the final internal denial to ask for an independent external review. If waiting would seriously jeopardize your health you can ask for both to be expedited, decided in about 72 hours. Both timeframes are federal, not your insurer's choice, 29 CFR 2560.503-1 (PDF) and 45 CFR 147.136 (PDF), in plain English at HealthCare.gov, and your own denial letter states the ones that govern your plan. The PDFs are the same sections on govinfo.gov, which serves them without a challenge page, so an automated reader can check these two dates as easily as you can.
You are not alone, measured rather than said: 83,907,852 in-network claims were denied in a single plan year, and only 4,918 of them, one in 17,061, ever reached the independent review stage. Of the ones that did, 22.2% (1,092 of 4,918; interval 22.2-23.8% for counts CMS withheld; 32.6% without SelectHealth) were overturned.
- Find the reason code on your denial letter. The notice has to state the specific reason and the plan provision behind it. Copy the code and the wording onto a piece of paper tonight, that sentence is what your appeal has to answer.
- Ask Cigna for the clinical criteria they judged you against. Under 29 CFR 2560.503-1 they have to hand you the claim file and the policy they applied, free, on request, and you cannot argue with a checklist you have never read.
- Put both deadlines on your calendar before you go to bed. 180 days from the date on the letter for the internal appeal, 4 months from the final internal denial for external review. The free calculator on this page turns your date into the two calendar dates in about ten seconds. Nationally only 1 in 17,061 denials ever reaches the second stage, and that is a deadline problem far more often than an argument problem.
None of those three steps costs anything. Anyone charging you to do them is selling you something you can do yourself in twenty minutes.
How Cigna says an appeal works, in its own words
We read both sources and quote each line as written. Each is labeled provider or member. The provider source's decision clock is never the member's clock. Member clocks differ by plan design. Your plan brochure or Summary Plan Description sets yours.
Who files which dispute
Cigna's own table of which denial scenarios are appealed by the CUSTOMER (the patient) and which by the HEALTH CARE PROVIDER. The split is easy to miss, and appealing a denial that only your provider has standing to appeal wastes the window.
| Dispute (Cigna's wording) | Route |
|---|---|
| Precertification (authorization) denial (for services not yet rendered) | Customer appeal |
| Precertification (authorization) not obtained – services denied | Health care provider appeal |
| Claim reimbursement denial (including mutually exclusive, incidental, or bundling denials, and modifier reimbursements) | Health care provider appeal |
| Experimental or investigational procedure denial | Either |
| Benefit denials (e.g., exclusion, limitation, administration [e.g., copay, deductible, etc.]) | Customer appeal |
| Maximum reimbursable amount | Customer appeal |
| Inpatient facility denial (e.g., level of care, length of stay, delayed treatment day) | Either |
| Medical necessity denial | Either |
Provider process: from Appeals and Disputes Policy and Procedures, checked November 5, 2026.
The steps and the clocks, quoted
- Provider process. Provider appeal filing window: 180 calendar days. “within 180 calendar days of the date of the initial payment or denial notice” Note: Provider-side window. The member's own internal-appeal right is at least 180 days under federal law (29 CFR 2560.503-1(h)(3)(i)) independently of this policy. From Appeals and Disputes Policy and Procedures, checked November 5, 2026.
- Provider process. Arbitration as final step, provider disputes: within one year of the final internal decision letter. “you must request arbitration within one year of the date of the letter communicating the final internal level review decision” Note: Applies to provider payment/termination disputes, not to a member's external review right. From Appeals and Disputes Policy and Procedures, checked November 5, 2026.
- Provider process. Reconsideration route for coding-edit denials: CignaforHCP.com or Provider.Evernorth.com. “a CignaforHCP.com or Provider.Evernorth.com user with claims/reconsideration access can submit a reconsideration request on the claim” Note: Provider portal route — a patient cannot use it, but can ask their provider's billing office to. From Appeals and Disputes Policy and Procedures, checked November 5, 2026.
- Provider process. Appeal mailing addresses vary by ID-card indicator: GWH-Cigna/'G' cards: PO Box 188062, Chattanooga, TN 37422 · all other appeals: PO Box 188011, Chattanooga, TN 37422. “If the ID card includes the “GWH-Cigna” or “G” indicators: Cigna Healthcare Inc. National Appeals Unit (NAO) PO Box 188062 Chattanooga, TN 37422 … For all other appeals: Cigna Healthcare Inc. National Appeals Unit (NAO) PO Box 188011 Chattanooga, TN 37422” Note: The ID card decides the address. Sending an appeal to the wrong PO box costs days inside a fixed window. From Appeals and Disputes Policy and Procedures, checked November 5, 2026.
- Member process. Member appeal filing window: 180 calendar days. “within 180 calendar days of the date of the initial payment or denial notice” Note: Member-side confirmation: same 180-day window Cigna publishes on the provider side, here stated to members. File by phone (number on the ID card) or via the myCigna Forms Center. From Health Care Appeals & Grievances (member guide, undated page), checked November 5, 2026.
- Member process. Member appeal decision clocks: 30 days medical-necessity appeals / 60 days post-service administrative. “within 30 calendar days for Pre Service and Post Service Medical Necessity appeals, and within 60 days for Post Service Administrative appeals” From Health Care Appeals & Grievances (member guide, undated page), checked November 5, 2026.
- Member process. External review is binding on Cigna: independent external reviewer, medical-judgment appeals. “you or your representative may have the option to submit the dispute for resolution (which is binding upon Cigna Healthcare and the plan) by an independent external reviewer for appeals that involve medical judgment” Note: Availability depends on plan type — self-insured employer plans may not offer it. From Health Care Appeals & Grievances (member guide, undated page), checked November 5, 2026.
Sources: Cigna, Appeals and Disputes Policy and Procedures, on www.cigna.com, written for health care providers, checked November 5, 2026. Cigna, Health Care Appeals & Grievances (member guide, undated page), on www.cigna.com, written for members, checked November 5, 2026.
Your two dates
The free deadline calculator turns your Cigna notice date into a 180-day date and a 4-month date. Both are federal clocks. If your plan gives more than 180 days, your letter is the authority.
Two dates decide more of this than anything else, and neither is on the front of your letter in a way anyone notices. Work them out tonight, write them on the letter itself, and you have already done the part that is easiest to lose. If your dates are strange, a denial that arrived after the treatment, or a letter with no external-review instructions on it at all, send us the wording with the identifying details removed and we will tell you which clock you are on.
Axion Labs · hello@getaxionlabs.comNo account, no email, no card. Both federal deadlines dated from your notice, and the body that decides your case at the end.
We read every Cigna line here on the 2 pages named above. None of them is a figure from the file below.
Counts: CMS Transparency in Coverage Public Use File (PY2027 release, PY2025 claims), data.healthcare.gov — US Government public domain. Rights and timeframes: 29 CFR 2560.503-1 (180 days, and your free right to the claim file) and 45 CFR 147.136 (4 months, and what qualifies), explained at HealthCare.gov. Expedited review is decided in about 72 hours under both sections.
Reading either regulation from a script rather than a browser: eCFR answers automated fetches with a challenge page, so the same two sections are mirrored as government PDFs at govinfo.gov (29 CFR 2560.503-1) and govinfo.gov (45 CFR 147.136).