Resource Library/Funding/Private insurance & the words

Private insurance, and what the words actually mean

How private insurance actually pays for your child’s therapy, plus every insurance word defined in plain English — deductible, coinsurance, prior auth, superbill — why an EOB is not a bill, and how to appeal a denial.

Reviewed Aug. 2026
On this page

This is parent-to-parent guidance, not legal, medical, or insurance advice. Your own plan documents and your insurer’s written answers are what actually govern your coverage.

Bottom line

Insurance pays therapy costs in stages — you cover everything until you hit your deductible, then split each visit with the plan, then (if you get there) pay nothing more once you hit your out-of-pocket maximum for the year. Ask HR this week whether your plan is fully insured or self-funded — it decides whether Tennessee’s autism mandate applies to you. When any bill arrives, wait for the EOB first: it’s a summary of the math, not a bill. And if a claim is denied, that’s a step in the process, not a verdict — appeal, especially with added documentation.

What to do now

  1. Ask HR one question, in writing

    “Is our health plan fully insured, or self-funded?” The answer decides whether Tennessee’s autism mandate covers your child.

  2. Wait for the EOB before you pay any bill

    Put the bill and the EOB side by side before sending money — the EOB is a summary of the math, not something you owe.

  3. If a claim is denied, note the deadline and appeal

    Every denial notice says how to appeal and by when. Appeals succeed often, especially once a provider adds the missing documentation.

Why do two families pay such different amounts for the same therapy?

Insurance doesn’t pay a steady share of your child’s therapy. It pays in stages, and the stage you’re standing in is what determines the number on your bill.

In the first stage you pay everything, up to your deductible. In the second stage you and the plan split each visit — a flat copay, or a percentage called coinsurance. In the third stage, if you get there, you’ve hit your out-of-pocket maximum and the plan covers 100% of covered in-network care until the plan year resets. Then the whole thing starts over in January.

Which is why two families can sit in the same waiting room, see the same therapist for the same hour, and pay wildly different amounts:

  • They’re at different stages of the year. One met the deductible in March and pays $20 a visit. The other started in January and is paying the full allowed amount.
  • One plan uses copays, the other uses coinsurance. A flat $30 versus 20% of whatever the visit costs.
  • One is in-network and one isn’t. Same therapist, different contracts — and out-of-network care can be reimbursed at a lower rate, or not at all.
  • Their insurers negotiated different allowed amounts with that same clinic. The clinic’s sticker price is rarely what anyone actually pays.
  • One has an active prior authorization and one doesn’t. Sessions delivered outside an authorization often get denied outright.
  • One also has TennCare. Private pays first, and TennCare can pick up copays, deductibles, and hours the private plan caps.

One more difference lives underneath all of that, and most families never hear about it.

The question for HR — ask it this week

“Is our health plan fully insured, or self-funded?”

State insurance laws — including Tennessee’s autism mandate — apply to fully-insured plans, where your employer buys coverage from an insurance company the state regulates. Many large employers instead self-fund: the company pays claims out of its own money and just hires an insurer to administer the plan. Self-funded plans are governed by a federal law called ERISA and are not bound by state mandates — even though your card says the same insurer’s name and looks identical.

This one answer decides which arguments work for you. Ask HR or benefits by email so you have it in writing, and ask for the plan document or Summary Plan Description while you’re there.

Tennessee’s autism insurance mandate is a state law requiring state-regulated private insurance to cover autism care, including ABA, without arbitrary hour caps. Autism Speaks publishes a plain-language summary of the Tennessee mandate (opens in a new tab) worth reading once and keeping bookmarked. That phrase “without arbitrary hour caps” is the part families most need: a blanket limit that isn’t grounded in your child’s clinical need is exactly the kind of thing worth challenging.

For families like ours, the categories that matter most are behavioral health including ABA (often run by a separate behavioral health arm with its own phone number and its own authorization process); speech, occupational, and physical therapy; evaluations and diagnostic testing; and durable medical equipment and communication devices — our directory lists AAC providers. On the therapy line, ask about the habilitative benefit by name. Plans often separate “rehabilitative” (restoring a lost skill) from “habilitative” (building a skill for the first time), and for a child with a developmental disability the habilitative benefit is usually the one you need.

If your child also has TennCare, that combination is the reason to apply for Katie Beckett even with excellent employer coverage.

The words, in plain English

Eleven words carry almost every conversation you’ll have about this. Each one below has its own link, so you can send a single definition to a grandparent, a spouse, or yourself at 11pm.

What do premium, deductible, copay, coinsurance, and out-of-pocket max actually mean?

Premium

What you pay every month just to have the insurance, whether or not you use it. Premiums do not count toward your deductible or your out-of-pocket maximum — this is the cost of the door, not the cost of walking through it.

Deductible

The amount you pay yourself each plan year before the insurance starts sharing costs. It resets every plan year — which is why January and February are the expensive months for therapy families.

Copay

A flat amount you pay for a specific visit — say $30 for a therapy session — regardless of what the visit costs. Predictable, which makes it the easiest number to budget around.

Coinsurance

A percentage instead of a flat fee. If your coinsurance is 20%, then after your deductible you pay 20 cents of every dollar the plan allows and the insurer pays 80. Unlike a copay, this number moves with the price.

Out-of-pocket maximum (OOP max)

The most you can pay in a plan year for covered, in-network care. Once you hit it, the plan pays 100% of covered services for the rest of the year. Premiums don’t count toward it, and out-of-network care often doesn’t either. For families with intensive therapy, this is the number that makes the year survivable.

What does in-network, prior authorization, and medical necessity mean?

In-network vs. out-of-network

In-network providers have a contract with your insurer and accept a negotiated price (the “allowed amount”). Out-of-network providers don’t — so your plan may cover less, or nothing, and the provider may bill you the difference between their charge and what the plan allows. Always ask a new provider: “Are you in-network with my specific plan?” — not just with the insurance company.

Prior authorization (prior auth / pre-auth)

Permission from the insurer before a service happens. Your provider submits an evaluation and a treatment plan with goals and recommended hours; the insurer approves a set number of hours for a set period. Authorizations expire — put the end date in your phone the day it’s issued — and approval is permission to proceed, not a guarantee of payment.

Medical necessity

The standard almost every denial turns on: whether the service is clinically required, by the insurer’s written criteria. It’s a documentation question, not a judgment about your child. Strong documentation names the diagnosis, describes function in concrete daily terms, states what happens without treatment, and ties the requested hours to specific goals.

What do superbill, EOB, and appeal mean?

Superbill

An itemized receipt from an out-of-network provider containing everything an insurer needs to process a claim: dates of service, procedure (CPT) codes, diagnosis codes, the provider’s credentials and tax ID, and what you paid. You pay the provider, submit the superbill yourself, and get reimbursed at your out-of-network rate — if your plan has one. Ask your insurer “Does my plan have out-of-network benefits for this service, and what percentage of the allowed amount will it reimburse?” and ask your provider simply: “Do you provide superbills?”

EOB (Explanation of Benefits)

The statement your insurer sends after processing a claim, showing what the provider charged, what the plan allowed, what the plan paid, and what portion is yours. It is a receipt of a decision — a summary of the math. It is not a bill. There’s a whole callout on that below, because it’s the mistake families make most.

Appeal

Your formal request that the insurer reconsider a denial. Every denial notice and EOB must tell you how to appeal and by when — that deadline is real, so note it the day the letter arrives. Appeals succeed regularly, most often when the provider supplies documentation the insurer said was missing.

What does a real course of therapy actually cost, month by month?

These are made-up round numbers

Nothing below is a real price or a real plan. They’re clean example figures chosen to show how the pieces fit together. Your plan’s actual numbers are on your insurance card and in your Summary of Benefits.

The example plan: premium $400/month · deductible $2,000 · coinsurance 20% after the deductible · out-of-pocket maximum $5,000.

The example care: in-network speech therapy, allowed amount $100 per visit, twice a week.

  • Visits 1 through 20. You haven’t met the deductible, so you pay the full allowed amount: $100 each. That’s $2,000, and around week ten your deductible is met.
  • Visit 21 onward. Coinsurance kicks in. You pay 20% of $100 = $20 per visit; the plan pays $80.
  • A full year — say 100 visits. $2,000 (the deductible) + 80 visits × $20 = $1,600. Your total: $3,600. The plan’s total: $6,400. Combined allowed charges: $10,000.
  • The out-of-pocket max never triggers here. $3,600 is under the $5,000 cap — but if a hospital stay or a second therapy landed in the same year, you’d hit $5,000 and then pay nothing more for covered in-network care until the plan year resets.
  • Premiums are separate. That $400/month — $4,800 for the year — sits outside all of the math above.

The out-of-network version. Same therapy, but the provider charges $150 while your plan still only allows $100. Your plan may apply a separate, higher out-of-network deductible, reimburse a smaller percentage, and leave you owing the $50 difference on top. That gap is why “are you in-network with my plan?” is the first question you ask a new provider.

What to do when a bill arrives

What to do when a bill arrives

  1. Wait for the EOB before you pay anything

    Providers sometimes bill before the insurer has finished processing. Pay first and you may be paying an amount insurance was about to cover — and getting money back is far harder than never sending it.

  2. Put the bill and the EOB side by side, line by line

    Match the date of service, the service or code, and the dollar amount the EOB lists as “patient responsibility.” One row at a time. Most confusion dissolves right here.

  3. If they match — pay it

    The number is real. If it’s more than you can pay at once, call the billing office and ask for a payment plan or a financial-hardship policy before the account goes to collections. Ask early; almost everyone says yes.

  4. If they don’t match — dispute it, provider first

    Call the provider’s billing office: “My EOB shows my responsibility as $X and this bill says $Y. Can you explain the difference?” Billing errors and wrong codes are common and get fixed at this level every day. If billing insists the bill is right, call the insurer next and ask them to walk you through how the claim was processed.

  5. Get it in writing, then escalate to a formal appeal

    Log every call — date, name, reference number — and ask for any resolution by email or portal message. If the disagreement is with the insurer rather than the billing office, the EOB or denial notice explains how to file a formal appeal and by when. Follow those instructions exactly and keep a copy of everything you send.

The single most common point of confusion

An EOB is not a bill

Do not pay an Explanation of Benefits. It usually says so somewhere in small print, and it’s the single most common way families overpay.

The EOB is your insurer explaining a decision they already made: what the provider charged, what the plan allowed, what the plan paid, and what’s left for you. It is a summary of the math. The bill comes separately, from the provider, and it is the only piece of paper you owe money on. Wait for the real one.

What should I do if a claim gets denied?

A first denial is a step in the process, not a verdict. It is the single thing families most often accept as final — and appeals succeed regularly, most often when the provider supplies documentation the insurer said was missing. Denials get overturned far more often than families expect, and the ones that get overturned are usually the ones somebody bothered to challenge.

Start by finding out what you’re actually arguing with. Ask the insurer in writing which criteria they applied and which specific criterion your child was found not to meet. That answer is what you take back to your provider, and it turns a vague “not medically necessary” into a fixable gap in a document.

Bring in the billing office before you fight alone. Good billing staff do this daily and often know exactly which code or letter unlocks the approval.

Watch the deadline. Every denial notice and EOB has to tell you how to appeal and by when. Note that date the day the letter arrives, follow the instructions exactly, and keep a copy of everything you send.

If your plan is self-funded, aim at the employer. The state mandate doesn’t bind them — but the employer chooses the benefit design. Parents have gotten autism coverage added at open enrollment simply by asking HR, in writing, with a short explanation. It costs an email.

Keep the denial letter. Several grant programs fund exactly what insurance refused, and the letter is your proof.

What else is worth keeping track of?
  • Get everything in writing. Phone reps are often wrong and never accountable. After any useful call, message the insurer’s member portal asking them to confirm what you were told.
  • Keep a call log. Date, time, representative’s name, reference number, what they said. Reference numbers are the most powerful thing you can say on a fifth phone call.
  • Photograph your insurance card, front and back. The number on the back is the one you’ll actually call, and behavioral health often has its own separate line.
  • Keep one folder per plan year. EOBs, bills, authorization letters, denials. When something goes wrong in November, the fix usually lives in a February document.
  • Re-check every January. Networks, deductibles, and authorization rules reset with the plan year. Confirm your therapists are still in-network before the first January appointment, not after.
The links worth keeping

The links worth keeping

Tennessee’s autism insurance mandate (summary) (opens in a new tab)

A plain-language summary of what state-regulated plans in Tennessee must cover — including ABA without arbitrary hour caps. Print it for the folder.

TennCare — Behavioral health services (opens in a new tab)

If private coverage falls short, this is what the public side covers — and why so many families run both.

TennCare: 800-342-3145

Grants that pay what insurance won’t (our guide)

Denial letters are worth money. Several programs fund exactly the therapy, equipment, or hours your plan just refused.

Read the guide →

ABA: pros and cons (our guide)

Before you fight for ABA hours, it’s worth deciding how many you actually want — and what a good provider looks like.

Read the guide →

Sources and review information

This guide was reviewed in August 2026. Confirm time-sensitive details with the linked official organization.