VOB Verification of Benefits
Verification of benefits is the check you run with a payer before admission to confirm what a patient's plan actually covers: active coverage, deductible and out-of-pocket status, whether the level of care is a benefit, and what has to be authorized. In behavioral health the admission decision often happens the same day a family calls, so this is the single point where a bad episode gets prevented or created. A shallow VOB that only confirms the policy is active tells you almost nothing about whether residential days will pay.
EOB Explanation of Benefits
An explanation of benefits is the statement a payer issues after processing a claim, showing what was billed, what the plan allowed, what it paid, and what falls to the patient. It is not a bill, though families often read it as one, and the billed amounts on a residential stay can set off alarmed phone calls. For the billing team, EOBs are primary evidence: they carry the denial reasons and payment math you need to spot underpayments and build appeals.
ERA Electronic Remittance Advice
An electronic remittance advice is the electronic version of the EOB, a machine-readable remittance file that lets payments post into your billing system automatically instead of being keyed in from paper. Enrolling for ERAs with each payer speeds up posting and makes denial patterns visible across your whole book rather than one paper remit at a time. Programs that never complete ERA enrollment usually find out late what their payers have been doing.
UR Utilization Review
Utilization review is the payer's process for deciding whether treatment is medically necessary at the level of care being provided, before, during, or after the stay. In behavioral health it is not an occasional event; residential and detox stays get reviewed on a rolling basis, and the outcome of each review determines how many days the payer will cover. UR is clinical work with direct revenue consequences.
Concurrent review payer reviews during active treatment
A concurrent review is utilization review conducted while the patient is still in treatment: the payer authorizes a block of days at a time, and your clinical team has to justify continued stay before each block runs out. Miss a review call or walk into one with thin documentation and the authorization ends, whether or not the patient is ready to step down. In RTC and detox billing, weak concurrent reviews are one of the fastest ways to lose covered days.
Prior authorization payer approval before treatment starts
Prior authorization is the payer's approval, obtained before services begin, confirming it will consider the treatment for coverage. Most plans require it for residential, detox, PHP, and often IOP, and an admission that goes in without one is hard to rescue afterward; retro-authorization windows, where they exist at all, are short. Whoever runs your admissions process needs the authorization question answered before the bed is filled.
Medical necessity payer's clinical appropriateness standard
Medical necessity is the payer's standard for whether a service is clinically appropriate for the patient's condition at that level of care, usually judged against criteria such as ASAM or the plan's own guidelines. It is the battleground of behavioral-health billing: most high-value denials are medical-necessity denials, and they are won or lost in the clinical documentation, not on the claim form. If the chart doesn't show why the patient needed that level of care on that day, the payer will conclude they didn't.
UB-04 institutional (facility) claim form
The UB-04 is the standard institutional claim form, used by facilities to bill payers for facility-based care. Residential, detox, and many PHP programs bill on it, and it carries facility-specific information (bill type, revenue coding, occurrence dates) that the professional form doesn't. Whether your program belongs on the UB-04 or the CMS-1500 depends on your licensure and your payer contracts, and getting that wrong produces rejections in bulk.
CMS-1500 professional (practitioner) claim form
The CMS-1500 is the standard professional claim form, used by individual clinicians and group practices to bill for professional services. Outpatient therapy, psychiatric visits, and practitioner services delivered inside a facility program typically go out on it. Many treatment organizations bill both forms at once, facility charges on the UB-04 and professional charges on the CMS-1500, which is normal but demands that the two sides stay consistent with each other.
Per diem billing flat daily-rate reimbursement
Per diem billing means the payer reimburses a flat daily rate that bundles everything delivered at that level of care that day, rather than paying for each service separately. It is the dominant structure for residential and detox contracts. Under a per diem, authorized days are the whole ballgame: documentation has to support a covered day of care, and every day the payer won't authorize is revenue that simply doesn't exist.
Clean claim first-pass payable claim
A clean claim is one that arrives with everything the payer needs to process it: accurate patient and policy information, the authorization on file, the right form, no missing or conflicting data. Clean claims pay on first pass — everything else lands in the rework pile. Because behavioral-health episodes are long and the sums involved are large, first-pass rate is one of the truest measures of how healthy a billing operation actually is.
Denial vs. rejection bounced claim vs. adjudicated refusal
A rejection is a claim that never made it into the payer's adjudication system, bounced by a clearinghouse or the payer's front end for errors, while a denial is a claim the payer processed and refused to pay. The distinction matters because the remedies differ: rejections get corrected and resubmitted, denials get appealed, and appeal rights and deadlines only attach to denials. In practice, rejections are the sneakier of the two, because they can sit unnoticed in a clearinghouse queue while the timely-filing clock keeps running.
Parity MHPAEA
Parity refers to the Mental Health Parity and Addiction Equity Act of 2008, the federal law that generally requires health plans offering mental-health and substance-use benefits to administer them no more restrictively than comparable medical and surgical benefits. It doesn't force a plan to cover behavioral health, but where coverage exists, financial and treatment limits on it generally can't be tougher than those on the medical side. In practice, parity comes up in appeals when a payer manages behavioral-health claims far more aggressively than it manages the rest of its book.
Carve-out separately administered behavioral-health benefits
A carve-out is an arrangement where a health plan hands its behavioral-health benefits to a separate company, often a managed behavioral health organization, to administer. The practical consequence is that the payer on the patient's insurance card may not be the entity that authorizes, processes, or pays your claims. A VOB that doesn't identify the carve-out sends everything to the wrong address, and authorizations, claims, and appeals all have to run through the carve-out entity instead.
Aged AR old unpaid receivables
Aged AR is accounts receivable that has gone unpaid past normal turnaround, tracked in aging buckets so you can see how long the money has been sitting. The older a claim gets, the less collectible it becomes, and timely-filing and appeal deadlines eventually close the door for good. In behavioral health, aged AR usually piles up quietly: denials nobody worked, concurrent-review gaps, rejections that never resurfaced. Regular review of the aging report is how you catch it while it can still be recovered.