Behavioral & mental health billing, handled with care
Where behavioral & mental health billing gets difficult
The issues we see most often, and the ones that quietly cost practices the most.
Session length and code choice
Psychotherapy codes depend on time spent with the patient, and rounding or documenting a range instead of actual minutes can lead to the wrong code.
Shifting telehealth rules
Place of service codes, modifiers and audio-only allowances differ between Medicare, Medicaid and commercial plans, and they have changed often.
Authorizations and visit limits
Many plans cap sessions or require reauthorization, and a lapse discovered after the fact can leave weeks of care unpaid.
Carve-out behavioral plans
Mental health benefits are often managed by a separate company from the medical plan, so eligibility and claims may need to go somewhere unexpected.
How we handle them
Benefit checks that look deeper
We confirm who actually manages the behavioral benefit, what is covered, and whether authorization is needed before the first session.
Authorization tracking
We monitor approved visit counts and end dates so your team gets notice well before an authorization runs out.
Time-aware coding
We code from the documented session time and flag notes where the minutes or the reason for added complexity are unclear.
Telehealth by payer
We maintain payer-specific telehealth settings for place of service and modifiers, and adjust them as policies change.
Coding notes
General guidance only. Code sets update every year and payer policies vary, so we check current rules on every claim.
- Diagnostic evaluation
- 90791 is used for a psychiatric diagnostic evaluation without medical services, and 90792 when medical services are included. Payers may limit how often these can be billed.
- Psychotherapy by time
- 90832 covers 16–37 minutes, 90834 covers 38–52 minutes and 90837 covers 53 minutes or more. When psychotherapy is added to an E/M visit, add-on codes 90833, 90836 and 90838 are used instead.
- Interactive complexity
- Add-on 90785 may be reported when specific factors, such as involvement of other parties or communication barriers, complicate the service. The reason should be clearly documented.
- Telehealth reporting
- POS 02 generally indicates telehealth outside the patient’s home and POS 10 indicates the patient’s home. Some payers also require modifier 95, or a different modifier for audio-only care, so requirements should be checked by plan.
Behavioral & mental health billing questions
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