Denial Facts
Tennessee

BlueCross BlueShield of Tennessee denied your claim. Here is your deadline.

Your two dates, free

Put in the date on your BlueCross BlueShield of Tennessee notice and get both federal deadlines as calendar dates.

Free, for a BlueCross BlueShield of Tennessee denial in Tennessee, 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.

BlueCross BlueShield of Tennessee denied 1,719,613 of 7,332,457 in-network claims in Tennessee; every one of those denials had these same two dates on it. Across Tennessee as a whole the insurers in this file denied 17.5% of in-network claims, 3,896,627 of them, and 30,249 were appealed.

BlueCross BlueShield of Tennessee denied 23.5% of in-network claims in Tennessee, 1,719,613 claims out of 7,332,457.

Further down this page, after the free steps: the paid next step.

Insurance got denied, what to do next?
We hear this most. r/HealthInsurance, thread title, read September 3, 2026.
The number nobody else publishes. 13 denials by BlueCross BlueShield of Tennessee in Tennessee reached the independent review its own staff do not decide, and 0 of those were overturned, 0%. That is this insurer's own filed row in the federal file, not our estimate. We publish no success rate of our own, because we have none.

Those 1,719,613 denials are 44.1% of every in-network denial recorded in Tennessee in this release, which makes BlueCross BlueShield of Tennessee the 1st largest source of denials of the 5 insurers reporting there. Spread across its 112 plans in the state that is about 15,354 denials per plan. 212 internal appeals were filed against those 1,719,613 denials. Every one of those denials carried the same two dates the tool at the top of this page works out.

The clock your letter has to describe, in actual dates

Two dates matter more than anything else on this page, and they run the same in Tennessee as everywhere else. 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.

Data verified November 4, 2026 · CMS Transparency in Coverage Public Use File (PY2027 release, PY2025 claims), data.healthcare.gov — US Government public domain

You are not alone, and here is the measured version of that sentence: 1,719,613 in-network claims were denied by BlueCross BlueShield of Tennessee in Tennessee in a single plan year. A denial rate is a fact about an insurer's book of business. It is not a judgment about you, and it is not the last word on your claim.

What to do tonight
  1. Find the reason code on your denial letter. The reason BlueCross BlueShield of Tennessee records most often in Tennessee is administrative reason, but yours may be one of the other 8, copy the exact wording and code off your own letter tonight, because that sentence is what your appeal has to answer.
  2. Ask BlueCross BlueShield of Tennessee in Tennessee 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.
  3. 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. BlueCross BlueShield of Tennessee overturned 39.62% of the internal appeals it did receive, 84 claims, so the stage you are about to start is not decorative.

None of those three steps costs anything. Anyone charging you to do them is selling you something you can do yourself in twenty minutes.

23.5%
In-network denial rate
1,719,613
Claims denied
112
Plans in Tennessee
212
Internal appeals filed
39.62%
Internal overturn rate

How that compares

Denial rateRateDifference
BlueCross BlueShield of Tennessee23.5%,
Tennessee average17.5%+6 pts
National average (this dataset)15.7%+7.8 pts

BlueCross BlueShield of Tennessee denies 7.8 percentage points more of its in-network claims than the national average across this dataset. A denial rate is a property of the insurer's book of business, coding practice, plan design, the population it covers, not evidence about the merits of any one claim, including yours.

What happened to appeals

StageFiledOverturned
Internal appeal (to BlueCross BlueShield of Tennessee)21239.62%
External review (independent)130%
Read that again: BlueCross BlueShield of Tennessee denied 1,719,613 claims in Tennessee, and only 13 went to independent external review. External review is free to you and the insurer must follow the decision.

The gap nobody escalated

1,719,613 claims denied. 212 internal appeals filed. 13 reached independent external review. Nationally 22.2% (1,092 of 4,918; interval 22.2-23.8% for counts CMS withheld; 32.6% without SelectHealth) of external reviews are overturned and the decision binds the plan.

That is arithmetic from the reported figures, not a prediction: nobody can say what those specific denials would have done at review, because they never got there. What the numbers do establish is that the binding stage was almost entirely unused here.

What that record means for your own BlueCross BlueShield of Tennessee letter, and by when. BlueCross BlueShield of Tennessee overturned 39.62% of the 212 internal appeals its Tennessee members filed against 1,719,613 denials, and 13 of those Tennessee denials went on to the independent stage whose decision binds the plan, BlueCross BlueShield of Tennessee's own rows in the plan-year 2027 release of the CMS Transparency in Coverage file, read November 4, 2026 (data.healthcare.gov). Whichever way that lands, nobody files the appeal for you, and the filing runs on a clock set by which plan you hold: an employer or Marketplace plan gives you at least 180 days from the denial notice to file the internal appeal (29 CFR 2560.503-1(h)(3)(i), carried onto individual-market coverage by 45 CFR 147.136(b)(3)(i)), while Medicare Advantage gives you 65 calendar days from the date of its notice (CMS, 42 CFR 422.582(b)) and Medicaid managed care 60 calendar days from the date on the notice (42 CFR 438.402(c)(2)(ii)), both stages free, and the three steps above are the whole of what to do tonight, so take the date printed on your BlueCross BlueShield of Tennessee notice and file well inside whichever of those windows is yours. The free steps are above; the $29 kit is the same clock with the letters pre-filled for BlueCross BlueShield of Tennessee in Tennessee. One payment. No subscription. No cut of your claim.

BlueCross BlueShield of Tennessee inside Tennessee

Your denial did not happen in a national average. It happened in a state market, alongside 4 other insurers reporting into the same federal file, and these are that market's own figures.

What BlueCross BlueShield of Tennessee denies most

The most common denial reason recorded for BlueCross BlueShield of Tennessee plans in Tennessee is administrative reason. How that denial is beaten →

Denial reasonClaimsShareNational share
Administrative reason983,00647.9%17.2%
Service excluded from the plan347,31016.9%13.4%
Member not covered334,17316.3%7.9%
Referral required177,1308.6%9.6%
Provider out of network114,0645.6%9%
Other reasons70,7373.4%32.4%
Benefit limit reached18,2340.9%4.9%
Experimental or investigational5,7110.3%0.1%
Not medically necessary4380%5.5%

The last column is each reason's share of all categorized denials nationally, so you can see where BlueCross BlueShield of Tennessee's mix in Tennessee differs from everyone else's. This is denial mix, not overturn rate by reason, the federal file does not report appeal outcomes broken down by denial reason, and we do not imply otherwise.

Work out your two deadlines

Put the date from your notice in and get the two calendar dates, with the days remaining.

Runs entirely in your browser, the date you type is never sent to us and never stored. Open the full calculator →

The three steps at the top of this page are the whole of what you have to do tonight. The longer version, what the internal appeal has to contain, how the independent stage works, and how to ask for expedited handling when waiting would seriously jeopardize your health, is published free here. For what it is worth on this page specifically: BlueCross BlueShield of Tennessee overturned 39.62% of the internal appeals it received.

Questions

Is BlueCross BlueShield of Tennessee's denial rate in Tennessee high?

23.5% against a national average of 15.7% across the plans in this dataset. It is above average. A denial rate describes the insurer, not the merits of your claim.

How many people appealed a BlueCross BlueShield of Tennessee denial in Tennessee, and how many won?

212 internal appeals were filed against 1,719,613 denials, and 39.62% of them were overturned (84 claims). 13 went on to independent external review.

How does BlueCross BlueShield of Tennessee compare with other insurers in Tennessee?

Of the 5 insurers in Tennessee with a reported denial rate, BlueCross BlueShield of Tennessee ranks 1 highest at 23.5%. The highest in Tennessee is BlueCross BlueShield of Tennessee at 23.5%; the lowest is Alliant Health Plans, Inc. at 6%.

What does BlueCross BlueShield of Tennessee deny most often in Tennessee?

Administrative reason, 983,006 claims, 47.9% of this issuer's categorized denials, against 17.2% nationally. This is the denial-reason mix; the federal file does not report overturn rates by reason.

How long do I have to appeal a BlueCross BlueShield of Tennessee denial in Tennessee?

Generally 180 days from the date on the denial notice to file the internal appeal, then generally four months from the final internal denial to request independent external review. Expedited review, decided in about 72 hours, is available where delay would seriously jeopardize your health. Those timeframes are federal, so they are identical for every insurer reporting in Tennessee, BlueCross BlueShield of Tennessee included, what varies by state is who runs the independent review at the end. Your own denial letter states the deadlines that govern your plan; that letter is the authority.

Does appealing a BlueCross BlueShield of Tennessee denial in Tennessee cost anything?

The internal appeal to BlueCross BlueShield of Tennessee is free. External review is free under the HHS-administered federal process; where an issuer uses a contracted independent review organization or a state process, any fee is capped at $25 per review. Nobody in Tennessee can be charged more than that to file one.

Can BlueCross BlueShield of Tennessee ignore an external review decision in Tennessee?

No, and that is the whole point of the stage. External review decisions are binding on the plan by law, which is what makes the 13 external reviews recorded against 1,719,613 BlueCross BlueShield of Tennessee denials in Tennessee the striking number on this page.

BlueCross BlueShield of Tennessee sits at 23.5% in Tennessee against 15.7% nationally, and that is the whole of what this page can honestly tell you about your own claim. We are not going to tell you that you will win. This page prints the insurer's own reported numbers whichever way they fall. If what it says does not match the letter in your hand, write to us and we will correct the page.

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Get my Appeal Kit, $29

Everything you need for your BlueCross BlueShield of Tennessee appeal in Tennessee: your two deadlines, the argument that fits your denial reason, the letters, a brief for your doctor on what the reviewer checks, and the external review request. One payment. No subscription. No cut of your claim. Opens on screen the moment you pay. 14-day refund, no questions, one email to hello@getaxionlabs.com.

Where these numbers come from

The BlueCross BlueShield of Tennessee figures on this page, the 23.5% denial rate, the 1,719,613 denials and the 13 external reviews, are this issuer’s own reported rows in that file.

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).

This page presents federal statistics and a general description of appeal rights created by federal law. It is not legal, medical, or insurance advice, and no outcome is guaranteed. Your denial letter and plan documents govern your specific case. Free help is available from your state's Consumer Assistance Program and from the federal Marketplace at HealthCare.gov.
Problem solved: You have both dates for your BlueCross BlueShield of Tennessee notice, you know that Tennessee runs the external review itself, and you have the letter, free, on this screen, tonight.

Your words, in a box, read by a person. We ask for no name and no email.