Review the evidence, deadline, ownership, and submission controls for a claim appeal.
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Use this checklist to structure an appeal review before submission. The applicable payer notice, contract, policy, and claim facts remain the controlling sources.
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An appeal filed by someone without the right to file it is dismissed on that ground alone, whatever its merits. Whether a practice may appeal in its own name turns on assignment, the plan's rules, and written authority from the patient.
Updated · 10 min readA timely-filing denial says the claim arrived after the filing window closed, so it never reaches the service. Before writing it off, settle two questions: which deadline actually applied, and whether the claim was truly late — because proof of timely receipt or a recognized exception can reopen it.
Updated · 11 min readA medical-necessity denial says the payer, applying its written coverage policy, decided the claim did not establish that the service was necessary for this patient — not that the care was wrong. The response turns on the policy and the record: find the criteria that applied, decide whether it is a reporting fix or a coverage dispute, and answer with the documentation mapped to the policy.
Updated · 13 min readA coordination-of-benefits denial is the payer acting on its record of the patient's other coverage, not a coding error. Two denials hide under one label: the payer says another plan is primary and must pay first, or it cannot process a secondary claim because the primary's decision was not attached. The two have opposite fixes, so the first task is telling them apart on the remittance.
Updated · 12 min readA non-covered-service denial says the service is not a benefit of the plan at all — not that it was unnecessary for this patient. Because there is no coverage to argue, the work is not an appeal on medical necessity: it is confirming the exclusion is real against the benefit document, settling who bears the amount, and catching the minority of cases that are actually a misadjudication of a service that is a benefit.
Updated · 14 min readAn experimental-or-investigational denial says the payer, applying its plan's own definition, considers the service not yet established or proven enough for this use to be a covered benefit — a judgment about the state of the evidence, not about whether the patient needed the care or whether the service is ever a benefit. Because it turns on evidence and FDA status, which change, a meaningful share are contestable: the argument is that the service is established for this indication, and on many commercial plans an independent external reviewer can decide the question the plan does not.
Updated · 15 min readA place-of-service denial says the two-digit setting code on the claim does not match what the payer expects — either inconsistent with the procedure billed (CARC 5) or judged an inappropriate or invalid setting for the treatment (CARC 58). Unlike the coverage denials in this cluster it is almost always a reporting problem rather than a judgment about the care, so the first question is not whether to appeal but whether the setting was reported correctly: a wrong code is a corrected claim, a correct code that was edited anyway is an appeal that defends the documented setting. Place of service also selects which of two payment tiers applies, so an inaccurate code is not cosmetic even when the claim pays.
Updated · 12 min readA partial denial is a denial that shares a claim with a payment. Because a payer adjudicates a claim one service line at a time, a single claim can pay some lines and deny or reduce others, so the remittance reports a deposit and a refusal at once. That makes it the easiest denial to miss — the money lands, the claim looks resolved, and the denied line disappears into a total that looks paid. Working one means separating the denied portion from the paid portion, telling a genuine denial apart from an expected contractual reduction, reading a per-line disposition rather than a claim-level one, and correcting or appealing only the affected lines without resubmitting the ones that paid.
Updated · 11 min readA secondary claim is adjudicated by a second payer under its own contract, not paid out as a top-up of what the primary left. So a secondary that will not pay can mean three different things — a legitimate zero payment where coordination worked, a coordination-of-benefits breakdown, or a genuine denial the secondary made on its own coverage, network, authorization, or filing rules — and each is resolved a different way. Working one starts by reading the remittance to tell which it is, because re-sending the primary's explanation of benefits fixes only one of the three.
Updated · 10 min readA claim the payer denied does not, by that fact, become the patient's to pay. Whether a denied balance may be moved to the patient is decided by three things read together — the group code the payer returned, the practice's contract with that payer, and whether the patient was told in advance and agreed to be responsible — and most denials are the practice's problem to solve, not the patient's bill.
Updated · 12 min readA payer's medical policy is the written rule a plan measures a service against — the covered indications, the diagnoses and coding it expects, and the documentation it requires. Finding and reading the policy that applies, before a claim tests it rather than after it denies, is how a practice knows the coverage rule in advance instead of learning it from a denial.
Updated · 11 min readDenials arrive faster than a team can work them all at once, each carries a filing deadline that runs from the remittance, and not all of them are recoverable — so the order they are worked in decides how much is collected. Prioritizing denial work is the triage that reads each denial's disposition and deadline before its dollar value, then sequences a finite capacity against fixed windows.
Updated · 14 min readA reviewer decides on what is in front of them. The appeal letter is the container that carries the argument and its evidence there — and a correct argument that arrives unidentifiable, unsupported, or in the wrong queue loses like a wrong one.
Updated · 11 min readA timely-filing appeal can argue exactly two things: the claim was not late, or it was late for a reason the payer's own rules excuse. It can never argue the service. And under Medicare fee-for-service there is no appeal to file at all — which makes identifying the proceeding the first step, not the letter.
Updated · 11 min readA post-service peer-to-peer is a clinician-to-clinician call about a claim that has already been denied — usually on medical necessity. It is not the pre-service authorization call, not every payer offers one after the service, and it never replaces the formal appeal: it is a faster route to the same independent physician review, run on its own short clock and converted into a paid claim only if it succeeds.
Updated · 11 min readFiling an appeal starts an obligation, not ends one: the payer now owes a decision on its own clock, and the window to take the appeal further runs from a decision the practice has to catch. Appeal tracking and follow-up is the discipline of carrying every filed appeal to a paid, escalated, or written-off resolution — so a filed appeal is not quietly lost to the payer's silence.
Updated · 14 min readTell us about your practice and we’ll tell you where we would start.
