Behavioral Health Accounts Receivable Benchmarks by Payer Class

As of October 2026, a healthy behavioral health program in Oregon or Washington should hold most of its insured accounts receivable in the 0 to 30 day bucket, with Medicare AR over 90 days in the low single digits, Medicaid under roughly 10 percent and commercial under roughly 15 percent. Those targets are not arbitrary: Medicare, Medicaid and commercial carriers in both states operate under published payment clocks that pay a clean claim in about 30 days, so a claim sitting past 90 days is almost always a claim with a problem, not a slow payer. The table below gives the targets we run billing against, the rule behind each one, and the arithmetic for what an extra week of AR costs you in cash.

What are healthy accounts receivable benchmarks for behavioral health?

AR aging is the share of your open insurance balances that falls into each age bucket: 0 to 30, 31 to 60, 61 to 90, 91 to 120 and over 120 days. The HFMA MAP Keys, the industry's standard revenue cycle definitions, measure it as aged AR in each bucket divided by total billed AR, and recommend a version segmented by payer group. That segmentation is the whole point. A blended aging report hides a Medicare problem inside healthy commercial numbers, or a CCO enrollment problem inside a good Medicare month.

These are Saint Health Group's operating targets for an outpatient, IOP, PHP or residential program billing in Oregon and Washington. They are drawn from our own billing operations and the payment rules cited below, not from a published industry survey, and residential programs with heavy concurrent review usually run toward the upper end.

If your over-90 number is double the target for one payer class and normal for the others, you do not have a billing-speed problem. You have a specific, fixable failure inside that payer class, and the sections below show where it usually lives.

Why do the healthy numbers differ by payer class?

Because the rules that set the payment clock differ, and so do the ways claims stall.

Medicare: a tight clock, so aging means something broke

CMS requires its contractors to pay interest on clean claims not paid within 30 days of receipt. Noridian, the Medicare Administrative Contractor for Jurisdiction F, which covers Oregon, Washington and Idaho among other states, states the 30-day ceiling on its claims timeliness page and applies it to electronic and paper claims alike. The Medicare Claims Processing Manual, chapter 1 also sets a payment floor: a clean electronic claim cannot be paid before the 14th day after receipt (the 29th for paper), so a clean electronic claim is paid between about day 14 and day 30.

That predictability is why Medicare's over-90 target is the lowest. A Medicare claim past 90 days is usually one of four things: a claim returned to the provider and never corrected, a Medicare Secondary Payer conflict, an enrollment or reassignment gap, or a denial nobody appealed. Medicare's filing limit is one calendar year from the date of service under 42 CFR 424.44, so the over-120 bucket is where Medicare dollars start to become unrecoverable.

Medicaid: federal clocks, but plan routing adds risk

For fee-for-service Medicaid, 42 CFR 447.45 requires the state to pay 90 percent of clean practitioner claims within 30 days of receipt and 99 percent within 90 days. 42 CFR 447.46 requires managed care contracts to carry the same standard unless the plan and provider agree to an alternative schedule written into the contract. In Oregon that covers the Oregon Health Plan and its coordinated care organizations; in Washington, HCA's Apple Health managed care plans.

The payment clock is fine. Medicaid AR ages because claims go to the wrong place: billed fee-for-service for a member enrolled in a CCO, sent to the wrong MCO after a plan change, or rejected for a provider enrollment, taxonomy or servicing-provider mismatch. Filing windows are also less forgiving than people assume. WAC 182-502-0150 generally requires an Apple Health fee-for-service claim to receive a transaction control number within 365 days of service, with some exceptions, and bars resubmission or adjustment after 24 months. OHA's Provider Matters confirms OHP fee-for-service claims can be submitted up to one year from the date of service. CCO and MCO filing limits are set by contract and are often shorter, so check each plan's provider manual.

Commercial: state prompt-pay laws, but the most places to stall

In Oregon, ORS 743B.450 requires an insurer to pay or deny a clean claim within 30 days of receipt, or to request additional information within that window. Under ORS 743B.452, unpaid claims accrue simple interest at 12 percent a year beginning on the 31st day. In Washington, WAC 284-170-431 requires carriers to pay 95 percent of their monthly volume of clean claims within 30 days and to pay or deny 95 percent of all claims within 60 days, with interest of 1 percent a month on undenied clean claims more than 61 days old when a carrier misses the standard. The Washington Office of the Insurance Commissioner enforces it.

Self-funded ERISA plans are generally outside state prompt-pay law, and commercial claims carry the most stall points: medical-records requests, coordination-of-benefits questionnaires, delegated behavioral health vendors, and authorization mismatches on per-diem levels of care. That is why commercial gets the widest band. Our commercial payer map for Oregon and Washington covers which carriers delegate behavioral health and to whom.

How much cash is tied up in each extra day of AR?

Days in AR, per the HFMA definition, is net AR divided by average daily net patient service revenue. Every day you take out of it is cash that moves from your balance sheet into your bank account once.

Daily revenue here is monthly net collections divided by 30. Use your trailing three-month average divided by 90 for a steadier number.

That is the one-time release. The recurring loss is in the aged buckets, because a claim past the payer's filing or appeal window is worth zero no matter how good the claim was. Run this on your own aging report: take every dollar over 120 days, and sort it by whether the timely filing or appeal deadline has passed. The dollars past the deadline are your write-off exposure; the dollars still inside it are your recovery list.

Why is my AR over 90 days growing when my clean claim rate looks fine?

Because clean claim rate measures what happens before the claim leaves your building, and aged AR measures what happens after. The HFMA MAP Keys define clean claim rate as claims that pass edits with no manual intervention. A claim can pass every scrubber edit and still deny for authorization, eligibility or medical necessity on the back end. When the two numbers diverge, the problem is almost always one of these.

For the denial side of this, our behavioral health denial management guide breaks down the categories, and the insurance verification checklist covers the front-end checks that keep Medicaid plan-routing errors out of AR in the first place.

How should an owner read an AR aging report?

Most aging reports a billing vendor sends are built to look stable. Five checks tell you whether yours actually is.

• Split by payer class. A blended report with 18 percent over 90 can be a clean Medicare book hiding a 35 percent commercial problem. Ask for the HFMA-style aging by payer group every month.
• Age from date of service. Aging from the last resubmission date resets the clock every time a claim is touched and makes stale claims look new. Filing limits run from the date of service, so your report should too.
• Separate patient responsibility. Self-pay balances age differently and belong in their own report. Mixed in, they inflate the over-90 bucket and hide insurance problems.
• Show credit balances. Unresolved credits net against debits and make total AR look smaller than it is, while creating refund obligations.
• Track over-120 by deadline. Every claim over 120 days should carry the date its filing or appeal window closes. If your biller cannot produce that column, nobody is working the deadline.

The trend matters more than any single month. Days in AR climbing for three straight months with a stable clean claim rate usually means follow-up capacity has fallen behind volume. A falling clean claim rate with rising AR means the front end is breaking.

What do operators get wrong about behavioral health AR benchmarks?

The common error is treating AR as a billing-department number. In behavioral health, the claims that age are disproportionately clinical and operational: a concurrent review that lapsed over a weekend, a level-of-care change documented in the chart but not in the authorization, an ASAM reassessment that supports the stay but never reached the payer. A biller can only resubmit; someone who has run a treatment program knows which unit to call and what the reviewer needs to see.

The second error is accepting a vendor's statement that 30 percent over 90 is "normal for behavioral health." Against the payment clocks above, it is not. It is a backlog, and some share of it is approaching a deadline right now. The revenue cycle collections hub covers the full set of metrics we run alongside AR, and our Oregon Medicaid billing guide covers OHP and CCO specifics.

Frequently asked questions

What is a good days in AR for a behavioral health practice?

In our operating experience, 30 to 40 days of net AR across all payers is healthy for an Oregon or Washington outpatient or IOP program, with Medicare lower and commercial higher. Residential and PHP programs with frequent concurrent review often run 5 to 10 days longer. Above 50 days usually means claims are stalling, not that payers are slow.

What percentage of AR should be over 90 days?

Segmented by payer, we target under 5 percent for Medicare, under 10 percent for Medicaid and under 15 percent for commercial. These targets are Saint Health Group's own operating standards, set against federal and state payment clocks that require most clean claims to be paid within about 30 days.

How fast must Oregon and Washington commercial insurers pay a clean claim?

Oregon's ORS 743B.450 requires an insurer to pay or deny a clean claim within 30 days of receipt, with interest under ORS 743B.452 starting on day 31. Washington's WAC 284-170-431 requires 95 percent of clean claims to be paid within 30 days and 95 percent of all claims to be paid or denied within 60 days. Self-funded ERISA plans are generally not subject to these state laws.

How long does Medicare take to pay a behavioral health claim?

Noridian, the Medicare contractor for Oregon and Washington, must pay interest on clean claims not paid within 30 days of receipt, and CMS sets a minimum waiting period before payment can be released. A clean electronic claim cannot be paid before the 14th day after receipt, so it is usually paid between day 14 and day 30.

Is AR aging measured from the date of service or the date of billing?

The HFMA MAP Keys measure AR aging from the aged trial balance, and practice varies by system. We recommend aging from the date of service, because timely filing limits, such as Medicare's one calendar year under 42 CFR 424.44, run from the date of service. Aging from the rebill date hides claims that are close to their deadline.

What causes behavioral health AR to grow even with a high clean claim rate?

Clean claim rate only measures whether a claim passes edits before submission. AR grows after submission when claims pend for records, deny for authorization or eligibility, are routed to the wrong Medicaid plan, or are underpaid and posted as complete. Segmenting aging by payer class usually shows which one it is.

See what your billing is leaving uncollected

If your aging report is not segmented by payer class, or your over-90 number is above the targets in this post, the cause is almost always specific and findable. Our free 90-day billing audit reviews your claims, remittances and AR aging under a signed BAA, and returns written findings by payer: claims over 60, 90 and 120 days, denials never appealed, authorization gaps and paid-versus-contracted rates, each with a dollar amount attached. You keep the findings whether or not you work with us.

If you already know the problem is your current biller, see how switching billers works without losing a month of cash, or how our behavioral health billing service is run by people who have operated treatment programs. For broader payer strategy, see our revenue cycle and payer services.

Request your free billing audit and see what your billing is leaving uncollected.