Behavioral health billing

Behavioral Health Medical Billingand Revenue Cycle Management

Quilven runs the revenue cycle for outpatient behavioral health practices, from solo clinicians to twelve-provider groups. Behavioral health bills differently from the rest of medicine: time bands decide the code, medical necessity denials dominate, parity law is an appeal tool most practices never use, and substance use records carry confidentiality rules stricter than HIPAA. We are paid a percentage of what we collect, month to month, no setup fee and no minimum. Solo practices are genuinely welcome, not tolerated.

Section 3

Why behavioral health billing is different

Five things separate it from the rest of medicine. The code is decided by minutes rather than by what you did. Medical necessity denials dominate, and they are discretionary rather than mechanical. Parity law gives you an appeal route almost nobody uses. Substance use records are governed by rules stricter than HIPAA, which changes who may see your claims. And panels close on you for reasons that have nothing to do with your qualifications.

Time decides the code

A session at 52 minutes and a session at 53 minutes bill differently. That is the single most audited area in the specialty and the most common reason claims are wrong.

Medical necessity is the dominant denial

Not missing information, not authorisation. A payer deciding your documentation did not establish that the care was necessary. That is a judgement call, which means it is appealable and also means it recurs until the documentation changes.

Parity is a live tool

The federal statute requires plans to apply no stricter limits to mental health care than to comparable medical care, and gives you the right to ask for the analysis proving it. Most practices never ask.

Substance use records are different

They are governed by their own confidentiality regime, which constrains what an outsourced biller may see and what consent you need first.

Panels close

Not because of your credentials. Because networks are full, or reported as full. Journalism has documented clinicians told a network was closed while patients could not find an in-network appointment.

The numbers, and what they are worth

Behavioral health carries higher initial denial rates and longer receivables than most specialties. The figures circulating for this specifically come from billing companies rather than from independent surveys, so we are not going to quote them as though MGMA published them.

What is independently anchored: the cross-specialty initial denial rate sits around 11.8 percent (Kodiak Solutions, 2024), and MGMA's benchmark for days in accounts receivable is under 40. Behavioral health commonly runs worse on both. The structural reasons are real, which is why the rest of this page is about them.

Section 4

Which code do I bill for a 50-minute session?

90834. The individual psychotherapy time bands are 16 to 37 minutes for 90832, 38 to 52 minutes for 90834, and 53 minutes or more for 90837. A 50-minute session is 90834 regardless of what your schedule calls it. Under 16 minutes is not billable as psychotherapy at all.

CPT reference

Psychotherapy time bands

Not billable
90832
90834
90837
0-15 min
16-37 min
38-52 min
53+ min
90832
16 to 37 min
90834
38 to 52 min
50-min session
90837
53 min or more
Under 16 minutes is not billable as psychotherapy
Illustrative: CPT psychotherapy time bands. Verify against the current CPT code set.

The 53-minute threshold is not arbitrary. It is the midpoint between the 45-minute and 60-minute targets, rounded.

What counts as time

Direct therapeutic face-to-face time only. Not documentation written afterwards. Not scheduling. Not care coordination. Not the note you finish at seven in the evening.

And the record needs the actual time. Start and stop times are the cleanest form. A note reading "60 minute session" without documented time is the single most common documentation failure in the specialty, and it is what turns an appeal into a loss.

If you prescribe

Prescribers billing both a medical service and psychotherapy in one encounter use an evaluation and management code with a psychotherapy add-on: 90833, 90836 or 90838, on the same time bands.

The rule that catches people: psychotherapy time must be counted separately from the evaluation and management work. Minutes spent on medication review, history and decision-making belong to the E/M. Only additional, distinct therapy minutes count toward the add-on.

These add-ons are simultaneously among the most under-billed and most mis-documented codes in psychiatry. A prescriber delivering twenty minutes of genuine therapy inside a thirty-minute medication visit, and billing only the E/M, is giving away real money.

Non-prescribers cannot bill E/M, so they use the standalone codes.

The others, briefly

  • Diagnostic evaluation. 90791 without medical services, for non-prescribers. 90792 with medical services, for prescribers.
  • Crisis. 90839 covers the first 30 to 74 minutes, with 90840 as an add-on for each additional 30 minutes beyond that. Once per date of service. Cannot be billed alongside routine psychotherapy on the same day.
  • Family. 90846 without the patient present, 90847 with. That distinction is a frequent error.
  • Group. 90853, for genuine group psychotherapy rather than psychoeducation or support.
  • Interactive complexity. 90785 is an add-on for specific communication complications, not for a longer or harder session. It does not apply to family sessions, crisis codes, or an E/M with no psychotherapy. Payer audits have found excessive and improper use of it. If you are adding it to most of your sessions, that is worth reviewing before someone else does.

Section 5 — free behavioral health coding tool

Psychotherapy code and modifier selector

Answer a few questions about the session and it returns the code, any permissible add-on, the telehealth modifier, and the documentation checklist for that code. There is nowhere to type anything about a patient, by design.

Interactive complexity (90785) — qualifying factors

Select a clinician type and service type to begin.

Educational reference only. Not billing, coding, legal or compliance advice. Verify against the current CPT code set, your Medicare contractor's articles, and each payer's policy. Do not enter patient information. This tool neither needs nor accepts it.

This tool also lives at its own address: /tools/behavioral-health-code-selector/.

Section 6

Why did our 90837 get downcoded?

Usually because the documentation did not prove the time, or because the payer applies a frequency expectation to 90837 and yours exceeded it. Both are appealable. Neither is fixed by resubmitting the same claim. The first is a documentation problem you can solve permanently. The second is a policy position you have to challenge.

If the note lacks documented time, the payer's position is defensible and the appeal is weak. Fix the documentation habit first, because every subsequent claim depends on it. Start time, stop time, the presenting problem, the interventions used named specifically rather than "psychotherapy," the patient's response, and the link to treatment plan goals.

If the documentation is sound, this is a payer policy question rather than a coding one. Some plans treat 90837 as requiring justification, effectively pushing routine sessions toward 90834.

That is where the parity question in section 8 becomes relevant, because a frequency limit applied to psychotherapy that has no equivalent in the plan's medical and surgical management is exactly the kind of limit parity law addresses.

What clinicians actually report

This comes up constantly in professional forums. Clinicians describe being told 90837 will not be paid and only 90834 will, and being asked to prove medical necessity for a full hour with complex cases. One describes being told 90837 is reserved for doctoral-level therapy, which is not a rule that exists.

If you are billing 90837 for sessions that genuinely run 53 minutes or more, and your notes prove it, you are entitled to be paid for it. The downcoding is a position, not a fact.

Section 7

The payer says our notes don't support medical necessity

Medical necessity is the dominant denial category in behavioral health, and it is discretionary rather than mechanical. What defeats it is a documented thread running from a specific diagnosis, through quantified symptoms and functional impairment, to interventions tied to treatment plan goals, to documented progress or a documented reason for its absence.

The thread

  • A specific diagnosis, not a general one.
  • Quantified symptoms and functional impairment. This is where most notes fail. "Patient reports anxiety" is not quantified. A validated measure with a score is. Tying to instruments like the PHQ-9, GAD-7 or PCL-5 gives a reviewer something to act on.
  • An explicit statement of why this care, at this frequency, is necessary. Do not leave the reviewer to infer it.
  • Interventions named and linked to treatment plan goals. Naming the modality rather than writing "psychotherapy."
  • Progress, or the absence of progress with a reason. A year of notes showing no change and no explanation is what triggers a records request.

Why this is getting harder

Payers increasingly screen notes for measurable severity before a human sees them. A note that reads well to a clinician but contains no quantified impairment can fail before anyone with clinical training reads it.

That is not a reason to write for the algorithm. It is a reason to include the specific things a reviewer needs, which are also the things that make the note clinically useful later.

Section 8

Can parity law win an appeal?

Sometimes, and it is the most underused tool available to a behavioral health practice. Federal parity law requires that limits on mental health and substance use benefits be no more restrictive than those applied to comparable medical care, and gives you the right to request the plan's written analysis proving it. Requesting that analysis is often more effective than arguing the individual claim.

The limits that matter are not visit caps. They are the non-numeric ones: prior authorisation, concurrent review, medical necessity criteria, step therapy, network composition, and how out-of-network reimbursement is calculated. That is where stricter standards get applied quietly.

The request that carries weight

Plans have a statutory duty, from the Consolidated Appropriations Act, 2021, to perform and, on request, produce a written comparative analysis of each such limit.

An effective appeal names the specific limit, states that it appears more restrictive than the plan's management of comparable medical care, and requests the comparative analysis.

That request shifts the burden. Rather than arguing about one patient's session, you are asking the plan to demonstrate its policy is lawful. Plans frequently prefer to resolve the claim.

Where to escalate, which depends on the plan

  • Fully insured plans are regulated by the state. Complaints go to your state department of insurance.
  • Self-funded employer plans are federally regulated. Complaints go to the Department of Labor.
  • Telling them apart matters, because sending a complaint to the wrong regulator wastes months. Check the member card for markings indicating self-funding, or the summary plan description.
  • Several states have parity laws stronger than the federal standard, but those apply only to fully insured plans.

An honest limit

Parity is leverage, not a guarantee. The Department of Labor pursues patterns rather than adjudicating individual claims. A single practice's win usually comes from the plan choosing to resolve rather than produce a weak analysis, or from a state regulator prompting a fast response.

Use it as appeal framing that raises the cost of denying you, and as an escalation route. Advocacy messaging sometimes implies parity guarantees coverage. It does not.

Status

A 2024 rule adding requirements is currently subject to a federal non-enforcement policy pending litigation, under a 15 May 2025 statement from the Departments of Labor, Health and Human Services, and the Treasury. The underlying statute and the earlier requirements, including the duty to produce a comparative analysis, remain in force.

That distinction is the practical one: the tool described above still works.

Section 9

How substance use confidentiality affects who bills your claims

Substance use disorder records held by programmes that hold themselves out as providing that treatment are governed by federal rules stricter than HIPAA. Recent changes aligned much of that regime with HIPAA and allow a single consent covering treatment, payment and operations, which makes outsourced billing workable. It does not remove the constraints, and it makes your billing company's arrangements a question you should ask about.

Whether the rules apply to you is a programme-level question. A general mental health practice that occasionally addresses substance use is often not covered. A dedicated substance use treatment provider, or a clearly identified unit within a practice, is. It is fact specific and worth establishing rather than assuming.

What changed

A 2024 final rule, with a compliance date of 16 February 2026, lets a single patient consent cover future disclosures for treatment, payment and operations. Enforcement now sits with the Office for Civil Rights. Breach notification and patient rights provisions align with HIPAA.

The practical effect is that claim submission and use of a billing company are workable in a way they were not before, provided the consent is right.

Psychotherapy notes are separate

Psychotherapy notes kept genuinely separate from the rest of the record carry heightened protection under HIPAA and require specific authorisation for most disclosures.

What they do not include is the billing-relevant material: medication management, session start and stop times, modalities, frequency, test results, and diagnosis and treatment plan summaries.

Which is the point. A well-designed billing workflow needs codes, dates, units, diagnosis and payer. It does not need the note.

Questions to ask any billing company, including us

  • Who signs the business associate agreement, and does it cover subcontractors and any staff outside the US?
  • What is the minimum data your process actually requires? If the answer includes clinical narrative, ask why.
  • How are substance use claims flagged and handled differently?
  • What consent language do you require before touching one?
  • What happens to records when the engagement ends?

For what it is worth, our answer to the first is that the agreement covers every person who touches your data, wherever they are based, including our international staff. You should ask anyway, and you should ask our competitors.

Section 10

Every panel we apply to is closed

This is a documented, structural problem rather than something about your application. Behavioral health credentialing runs 90 to 180 days, longer than much of medicine, and commercial panels close on network adequacy grounds even for well-qualified clinicians. Journalists have documented clinicians being told networks were full while patients could not obtain in-network appointments.

Timelines. Expect three to six months. The clock restarts on payer mergers, group file changes, and any move from a group to solo practice, because leaving a group means losing its contract and re-credentialing under a new tax identifier.

The delays you control are the usual ones. An incomplete profile, an expired malpractice certificate, a lapsed attestation.

Licence type matters more here than elsewhere

Clinical social workers and psychologists are accepted almost everywhere. Professional counsellors and marriage and family therapists face restrictions with some payers and in some states.

Medicare only began recognising marriage and family therapists and mental health counsellors from January 2024, which is recent enough that some published guidance has not caught up.

Some state Medicaid programmes exclude particular licence types from particular codes entirely. Check your state rather than assuming a code you can bill commercially is billable to Medicaid.

What actually works on a closed panel

Network adequacy requirements can occasionally be used to argue that a panel should admit you, particularly where wait times or geographic access are poor. As direct negotiation this is weak. As a complaint to a state regulator it is stronger.

Closed panels are not permanent. Re-applying after six months, with a documented network gap argument, sometimes works.

What does not work is repeatedly submitting the same application into the same closed panel and waiting for a different answer.

Section 11

Out of network, or is insurance worth it at all?

This is a real question in behavioral health in a way it is not in most specialties, because the reimbursement gap is wide enough to change the arithmetic. Going out of network means collecting your full fee directly and providing a superbill. You gain revenue per session and lose referral flow and patient accessibility. Neither answer is automatically right.

What you gain

  • Higher and more predictable revenue per session.
  • Substantially less administrative burden.
  • No dependence on a panel that may not admit you anyway.

What you give up

  • Referral flow from being in a directory, which is how many practices fill.
  • Easier access for patients, particularly those who cannot fund care upfront and wait for reimbursement.
  • The ability to help patients reach their deductible.
  • And a patient population that skews toward those who can pay.

That last point is worth sitting with. It is a business decision with a distributional consequence, and pretending otherwise would be dishonest.

How to actually decide

Run your own numbers rather than an industry average. Your realistic private-pay rate against your average in-network reimbursement, times your session volume, minus what you spend on billing and admin under each model. Then adjust for how full your caseload is and how much of it comes from in-network referral.

A practice with a waiting list and a strong local reputation is in a different position from one filling through directories.

The hybrid

Most practices we see are hybrid rather than at either pole. In network with the one or two payers whose rates and administration are tolerable, out of network otherwise. That is often the right answer and it is rarely presented as an option.

Section 12

Why did our telehealth claims start denying?

Behavioral health telehealth is now the most durable telehealth category, but the rules around it have changed repeatedly and some commercial payers narrowed their positions in 2026. Most denials trace to place of service, the modifier, or a payer that quietly changed what it covers.

Place of service differs depending on whether the patient is at home (POS 10) or elsewhere (POS 02). Getting this wrong is a common mechanical denial.

Video sessions take modifier 95. Audio-only for an independent practice billing Medicare takes modifier 93. Modifier FQ is an RHC and FQHC construct. Verify against your contractor rather than a blog, including this one.

Audio-only is permanently available for Medicare behavioral health where the patient cannot use video or declines it. The record should say which.

The six-month in-person visit requirement for Medicare behavioral health telehealth is waived through 31 December 2027. It is currently scheduled to apply from 1 January 2028 unless Congress moves it again.

Commercial payers moved. Several narrowed audio-only coverage to behavioral health only during 2026. If your denials started at a specific point, check whether that payer changed policy rather than assuming something changed at your end.

A caution worth stating

Time-based coding and telehealth documentation are the two things federal audits of behavioral health have concentrated on. OIG report A-09-21-03021 (May 2023) found that the majority of sampled Medicare psychotherapy claims failed on documentation, most often missing time and incorrect identification of whether a service was delivered in person or by telehealth.

The services themselves were not the problem. The records were. That is worth knowing before an additional documentation request arrives, because at that point the record is whatever you wrote at the time.

This section requires compliance review and quarterly re-dating.

Section 13

Do you actually need a billing company?

Quite possibly not. A solo clinician with a small number of payers, a mostly private-pay caseload, and an hour a week for admin can run their own billing perfectly well. We would rather tell you that than take on a practice we cannot improve.

You probably do not need us if

  • You are solo with one or two payers
  • Your caseload is mostly private pay
  • Your claims go out clean and get paid
  • You have the time and do not mind the work
  • Your denial volume is low enough to handle as it arises

It becomes worth it when

  • You are spending evenings on claims instead of notes or your own life
  • Denials are accumulating faster than you can appeal them
  • You are adding clinicians and the billing does not scale with you
  • You have taken on payers whose administrative load exceeds what you expected
  • Something specific has gone wrong and nobody owns fixing it

If you already have a biller

Two questions worth asking them. First, what our denial rate is by reason code over the last quarter. Second, what they do when a 90837 gets downcoded.

If neither has a clear answer, the problem is not necessarily that you need a different arrangement. It may be that nobody has ever been asked.

What we cannot do

We cannot open a closed panel, change a payer's medical necessity criteria, or make an insurer pay a rate it does not pay. What we can do is get the coding right, build documentation habits that survive review, work denials rather than write them off, and use the parity route when it applies.

Section 15

Get a free 48-hour AR audit

We look at your claim data and tell you what is not being worked, where denials cluster, and what it is costing you. For a behavioral health practice that usually starts with downcoding patterns and medical necessity denials.

No obligation and no requirement to change anything. If you are doing fine on your own, we will say so, and that happens.

Clinicians
Payer mix
Billing now
Your details

How many clinicians?

Section 16

Common questions

Can we bill for a missed appointment?+

Not to insurance. Missed appointments are not a covered service, and billing a payer for one would be improper. You can charge the patient directly if your policy is disclosed in advance and the patient has agreed to it in writing. Medicare has specific requirements about charging beneficiaries for missed appointments, so check those if Medicare is in your mix.

Can a non-prescriber bill an evaluation and management code?+

No. Evaluation and management codes require a prescriber. Non-prescribers use the standalone psychotherapy codes, and the psychiatric diagnostic evaluation without medical services rather than the version with them. This distinction also determines which diagnostic evaluation code you use.

When can I add interactive complexity?+

Only for specific communication complications, and never simply because the session was longer or harder. It does not apply to family psychotherapy, crisis codes, or an evaluation and management service with no psychotherapy. Payer audits have found excessive and improper use of it, so if it appears on most of your claims that is worth reviewing before somebody else does.

Do I need to re-credential if I leave a group practice?+

Yes. Credentialing attaches to the tax identifier and the practice, not just to you. Leaving a group means losing that contract and starting again under your own identifier, which typically means three to six months where you are not in network under the new arrangement. Plan the transition around that rather than discovering it afterwards.

Are marriage and family therapists and mental health counsellors billable to Medicare?+

Yes, since January 2024. This is recent enough that some published guidance and some payer systems have not fully caught up. If you are being told otherwise, it is worth checking the date on whatever source is being quoted.

What actually happens in a documentation audit?+

A request for records on a sample of claims. The reviewer checks whether the documentation supports the code billed, which for time-based codes means whether the time is documented. Findings on a sample can be extrapolated across a wider period, which is why the exposure is larger than the sample suggests. The decisive moment is what you wrote at the time, not what you can explain afterwards.

Do you work with solo practices?+

Yes, genuinely. Behavioral health skews small and we price the same way regardless of size, as a percentage of what we collect, with no minimum. If the audit shows outsourcing is not worth it at your volume, we will tell you that instead of taking the account.

What does it cost?+

A percentage of what we collect, quoted after the free 48-hour AR audit rather than before, because a rate given without seeing your claim data is a guess. No setup fee, no monthly platform fee, no minimum, month to month with 30 days notice. Full detail on the pricing page.