Calculation sequence
For each claim: start from the billed charge → determine coverage eligibility (excluded services stop here, becoming a non-covered amount) → determine the allowed charge (using the billed charge as a flagged, temporary base if the allowed charge is unknown) → calculate potential balance billing for out-of-network care → apply the certificate’s cost-sharing steps (copay, service-specific deductible, general deductible, coinsurance) in the exact order you specify — never a fixed order → apply service sublimits, per-incident maximum, and policy maximum → apply the out-of-pocket maximum, only if one was entered, by reclassifying qualifying cost-sharing back to the insurer once the running total is reached → report the final insurer payment and your total liability, broken into deductible, copay, coinsurance, balance billing, non-covered amount, and any amount above a sublimit, scheduled benefit, or policy maximum.
Comprehensive-plan formula
A comprehensive plan runs the eligible amount through whichever sequence of copay, deductible, and coinsurance steps you select — the engine supports copay-then-deductible, deductible-then-copay, deductible-only, copay-only, and first-dollar (no cost-sharing) sequences, plus a coinsurance threshold (100% insurer payment above a stated amount) and a coinsurance cap, when those are entered.
Fixed-benefit formula
A fixed-benefit (scheduled) plan does NOT run comprehensive math. The insurer payment is the lesser of the billed charge and the scheduled benefit for that service category; the member owes the rest, subject to any further sublimit, per-incident, or policy-maximum restriction. A hybrid plan applies this formula only to the service categories you’ve entered a scheduled benefit for, and comprehensive math to every other category.
Network calculation
Cost-sharing is calculated against the allowed (negotiated) amount, not the billed amount, whenever the allowed amount is known. For in-network claims, the engine assumes the standard PPO convention that the provider cannot bill above the allowed amount. For out-of-network claims, potential balance billing is calculated as billed minus allowed. When network status is unknown, the engine does not assume either direction — it flags the uncertainty instead.
Family aggregation
By default, every traveler in a household is calculated completely independently, then the results are added together for the household total. A shared family deductible, shared policy maximum, or shared out-of-pocket maximum activates only when you explicitly set that provision’s scope — never assumed. An “embedded individual” deductible tracks both an individual cap per traveler and a shared family pool at the same time, and a traveler’s deductible is considered met as soon as either one is reached.
Policy maximum treatment
The policy maximum (and, separately, any per-incident maximum and service sublimits) caps the insurer’s payment, not your liability. Any amount the insurer would otherwise have paid above one of these caps is added to your total liability as a distinct, separately labeled line — never silently absorbed.
Out-of-pocket treatment
An out-of-pocket maximum is applied only when you explicitly enter one, and only to the specific expense categories you mark as counting toward it (deductible, copay, coinsurance, out-of-network spending, non-covered amounts — each is a separate yes/no you control). If you don’t enter an out-of-pocket maximum, the calculators never invent one, and the result carries an explicit warning that your total exposure may exceed the estimate.
Rounding method
All money is represented internally as integer cents, not floating-point dollars — a deliberate choice for this engine because a single claim can chain 15 or more sequential calculation steps, and float rounding drift compounds across that many steps in a way it would not in a single-formula calculator. Dollar inputs are converted to cents at entry; results are formatted back to dollars only for display.
Missing-input treatment
Every optional certificate term you leave blank is tracked, by name, in the result’s list of missing inputs — never silently defaulted to zero, unlimited, or any other assumed value. The Uncertainty Panel on every result lists exactly which terms were missing and generates a personalized list of questions to ask your insurer from that list.
Confidence labels
Every result carries one of three labels — Higher-confidence estimate, Moderate-confidence estimate, or Limited estimate — based on how many required inputs were missing or had to fall back to a flagged assumption (like using the billed charge because the allowed charge was unknown). These are qualitative labels, never a manufactured numeric confidence percentage.
Illustrative-example policy
“Load example” buttons across these calculators pre-fill round, clearly labeled illustrative numbers — never a real insurer’s actual rates — so you can see how the math behaves before entering your own certificate’s terms. Every example is labeled as an example both on screen and in this document; see the glossary for term-by-term numeric examples.
Data source hierarchy
General insurance-term definitions used in this cluster's copy are sourced from Tier 1 government/regulatory sources (HealthCare.gov, CMS.gov, NAIC). Plan-specific claims are never made without a real, retrieved Tier 2 document (an actual policy certificate, summary of benefits, or underwriter document) — this cluster currently makes no plan-specific factual claims because no such document has been cited yet. Competitor marketing copy is never used as a source for what a plan covers. See docs/visitor-insurance/source-policy.md in the project repository for the full tier definitions.
Update schedule
This cluster is reviewed for accuracy and freshness periodically; the last review date is shown at the bottom of every page in this cluster. Because these calculators never depend on live pricing data, most updates are to the educational copy, examples, and calculator behavior rather than to any numeric fee schedule.
Known limitations
- The engine models the certificate terms you enter — it cannot verify that you entered them correctly, or that they match your actual certificate
- It does not know whether a specific provider is actually in-network — you must confirm that separately
- The pre-existing/acute-onset analyzer is a policy-language tool, not a medical or claims-adjudication tool
- It cannot predict a real insurer’s discretionary claim decisions, appeals outcomes, or processing delays
Editorial policy
This cluster is written and maintained by Deepak Middha, whose credentials are CA (Chartered Accountant) and Series 65 — he is not a physician, licensed insurance agent, underwriter, or immigration attorney, and nothing on this site should be read as claiming otherwise. A named, credentialed insurance reviewer will be added to this cluster when one becomes available; no reviewer byline is shown until then.
Affiliate independence policy
No calculation on this page or any visitor-insurance calculator changes based on affiliate compensation. This cluster currently carries no affiliate insurer links; if any are added later, they will be disclosed next to the recommendation itself — see the site’s general affiliate disclosure policy.
How to report an error
Email support@nritousa.com with the calculator name, the exact inputs you used, and the result you saw versus what you expected. Include a copy of the relevant certificate language if the issue concerns how a specific term was interpreted.