Specialty
Behavioral health billing services
Behavioral health billing services deal with time-based psychotherapy codes, telehealth rules that differ by payer, Medicaid service codes and credential modifiers that differ by state, authorizations measured in sessions, and plans that carve mental health out to a separate administrator with its own claims address.
See where claims are getting stuck. No patient data needed.
Remitwright gives therapy practices, counseling groups and psychiatric prescribers a dedicated biller who knows those rules, tracks authorizations by session, and works denials to the cause.
Behavioral health billing is one of Remitwright's specialty billing services, each set out with its own code families, denial reasons and payer rules.
Last reviewed by the Remitwright billing team. Editorial policy
- 90791
- 90832
- 90833
Denials
Why behavioral health claims get denied
The reasons that come up most on behavioral health remittances, with the usual cause and the fix. Code explanations are our own; the official list is maintained by X12.
| Code | Reason | Usual cause | The fix |
|---|---|---|---|
| CO-197 | Authorization absent or exceeded | Sessions beyond the authorized count or end date, or a plan that allowed an initial number of sessions and then required authorization | Authorized sessions and dates tracked on the schedule, with renewal requested before the last authorized session |
| CO-4 | Procedure inconsistent with the modifier | Telehealth modifier and place of service combined in a way this payer does not accept, or a credential modifier missing | A per-payer telehealth and modifier rule set applied before release |
| CO-96 | Non-covered provider or service | The clinician's license type is not covered by the plan, or the clinician is not credentialed with the plan's behavioral health administrator | Credential each clinician with each plan and its carve-out administrator before the first session |
| CO-109 | Claim sent to the wrong payer | Mental health carved out to a separate administrator with its own claims address and payer ID | Carve-outs recorded at eligibility and the claim routed to the administrator, not the medical plan |
| CO-151 | Units or frequency exceed what the payer allows | Two sessions on one day, or 90837 billed at a frequency the payer reviews | Session length and start and stop times documented; per-day limits checked before submission |
| CO-16 | Claim lacks information | Rendering provider, supervising provider or taxonomy missing or mismatched for a Medicaid plan | Provider setup checked for each plan, with a scrubber rule for the plans that reject on taxonomy |
Codes
Common behavioral health codes and modifiers
Code families by number with our own one-line explanations. CPT descriptors belong to the AMA and are not reproduced here.
| Codes | What the family covers |
|---|---|
| 90791, 90792 | Diagnostic evaluation, without and with medical services; the starting point of most episodes and usually limited to one per patient per period by payers |
| 90832, 90834, 90837 | Individual psychotherapy by session length, roughly 30, 45 and 60 minutes; the longest is the one payers review most often |
| 90833, 90836, 90838 | Psychotherapy add-on codes for prescribers who deliver therapy in the same visit as medication management |
| 90846, 90847, 90853 | Family therapy without and with the patient present, and group psychotherapy |
| 96127, 96130-96139 | Brief screening instruments and psychological or neuropsychological testing, billed by time |
| 99202-99215 | Evaluation and management for medication management by psychiatrists and psychiatric nurse practitioners |
| H0001-H2037 | Medicaid behavioral health service codes for assessments, case management, crisis, rehabilitation and day programs; which ones a state uses, and with which modifiers, is set by that state |
Modifiers that matter
- 95
- Synchronous audio and video telehealth, paired with the place of service the payer wants, usually 02 when the patient is not at home and 10 when they are.
- FQ
- Audio-only mental health services for Medicare when video is not possible or not wanted, with the reason documented.
- GT
- Telehealth for the Medicaid programs and plans that still require it instead of 95.
- HO, HN, HP, AH and similar
- Medicaid credential-level modifiers identifying the clinician's licensure; which letters a state uses and whether they change the rate is set by that state.
Credentialing and payer enrollment for behavioral health
A behavioral health claim is only as good as the clinician's enrollment with the plan that pays it, and in this specialty each license type has its own path onto a panel.
Medicare pays psychiatrists, clinical psychologists and clinical social workers, and since January 1, 2024 marriage and family therapists and mental health counselors can enroll and bill Medicare independently. Under the requirements CMS sets out in its mental health booklet, a clinician can enroll as a mental health counselor when they hold a master's or doctoral degree that qualifies for that license, are licensed or certified in the state where they provide services as a mental health counselor, professional counselor, clinical professional counselor, or addiction, alcohol or drug counselor, and have at least 2 years or 3,000 hours of post-master's supervised clinical experience. Medicare does not cover services billed incident to a social worker's, therapist's or counselor's own services, so an associate's sessions cannot go out under the supervising LCSW or LPC on a Medicare claim. CMS takes enrollment and revalidation through PECOS or the paper CMS-855I.
Medicaid adds the state. Under 42 CFR 438.602(b), the state screens and enrolls every network provider of its managed care plans. A plan may contract with a clinician for up to 120 days while that enrollment is pending, and has to end the contract if the state has not enrolled the clinician by then. So an LCSW's state Medicaid enrollment and each MCO application move together, and a plan that carves behavioral health out to a separate administrator credentials through that administrator.
Commercial plans that use the CAQH Provider Data Portal read the clinician's credentialing data from one profile: the clinician enters it once, shares it at no cost with the plans they authorize, and keeps it current on a 120-day attestation cycle. Your biller keeps each clinician's status with each plan, the attestation date beside the license and malpractice dates, and claims held until the effective date. The full process sits with our credentialing service.7
Payers
Payer notes
- MedicareMedicare covers diagnostic evaluation, psychotherapy and related services by psychiatrists, psychologists, clinical social workers and, since January 2024, marriage and family therapists and mental health counselors who enroll, with mental health telehealth permitted from the patient's home and audio-only allowed under conditions.1
- MedicaidChildren and young adults under 21 are entitled under EPSDT to screening, diagnostic and treatment services that are medically necessary, which is the basis for behavioral health coverage that may be broader than the adult benefit; the service codes and credential modifiers are set by each state.2
- Commercial plansMost apply medically unlikely edits that limit units per code per day, and procedure-to-procedure edits between evaluation and therapy codes on the same date, so two services on one day need the documentation and modifiers to match.3
- All payersTelehealth claims carry a place of service from the CMS code set, with 02 for telehealth outside the home and 10 for telehealth in the patient's home, and payers differ on whether they want the place of service, the modifier or both.4
Authorizations
Authorization in behavioral health is measured in sessions and dates. Some plans allow an initial number of sessions without authorization and require it afterwards; some require it from the first visit; Medicaid managed care plans often require it for anything beyond the basic outpatient benefit and for testing. Your biller records the authorized sessions and end date on the schedule, counts down as sessions are booked, and requests renewal before the last authorized session with the treatment plan update the plan asks for.
Documentation traps
- Session start and stop times missing, so the time-based code cannot be defended when the payer reviews the longer sessions
- Treatment plans without measurable goals, dates and a diagnosis the plan recognizes, which is what the authorization reviewer reads first
- Supervision not documented for associate-level clinicians billing under a supervisor, which turns a paid claim into a recoupment
- Telehealth notes that do not record the modality, the patient's location and the consent, which some payers require on every visit
What a specialist checks
Specialist or generalist for behavioral health billing?
A generalist biller can enter a behavioral health claim. Whether it pays turns on three things specific to behavioral health billing, and a specialty-aware biller checks each one.
Code families
Each family billed with what the chart has to show for it.
- 90791, 90792
- 90832, 90834, 90837
- 90833, 90836, 90838
Modifiers
Applied only where the note supports them, line by line.
- 95
- FQ
- GT
If you are moving from another billing company or an in-house biller, switching billing companies follows a plan: the old and new processes run side by side until the new one is proven, and every login and every behavioral health claim stays in your name.
What we handle
What we handle for behavioral health practices
- Eligibility verificationCoverage and benefits checked before visits
- Prior authorizationAuths requested, tracked, attached to claims
- CredentialingEnrollment, CAQH and PECOS kept current
- Claim submissionScrubbed, submitted and tracked to acceptance
- Denial managementEvery denial read, worked and appealed
- Patient billing supportStatements, questions and payment plans handled
A dedicated biller with named cover, working inside your system and reporting to you on one written page. How it works sets out the five stages.
Worked example: a new counselor credentialed before her first session
A hypothetical four-clinician therapy practice hires a licensed professional counselor. Before her start date the biller files her Medicare enrollment through PECOS as a mental health counselor, completes her CAQH profile, attests it and shares it with the practice's three commercial plans, and submits her state Medicaid enrollment together with applications to the two Medicaid MCOs the practice works with, one of which sends behavioral health credentialing to a separate administrator. By her first week, Medicare and two commercial plans have approved her; the third commercial plan and both MCOs are still pending. Her schedule follows the approvals: she starts with patients from the approved plans, members of the pending plans stay with clinicians already in network, and nothing she sees is billed to a plan that has not credentialed her. No claim goes out that would come back as a non-covered provider denial.
Software
Systems behavioral health practices usually run
Your biller works inside your system as a user you create. All the systems we work in.
Questions
Questions about behavioral health billing
Can licensed counselors and marriage and family therapists bill Medicare?
Why are our 60-minute sessions being reviewed?
What telehealth modifier and place of service do we use?
The plan said no authorization was needed, then denied for no authorization. Why?
What are H codes?
Our plan carves mental health out to another company. What does that mean for claims?
Should a therapy practice keep billing in-house or use a billing company?
What do you need from a therapy practice to start?
Next step
See where your behavioral health claims are getting stuck.
Three quick questions. No patient data. A billing specialist reads every request and replies in writing.
- Three questions, about two minutes
- No patient data, no software to buy
- A written reply from a biller, not a sales deck
You answer three questions
A billing specialist reads them
A written reply by email
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- A billing specialist reads your answers and replies by email.
- If a look at real claims makes sense, we agree read-only access under a BAA first.
- You get a written summary of what is worth working and what it would take. No commitment.
While you wait: see the sample weekly report or read how switching works. You can also download the sample weekly report (PDF).