💡 Mental Health Billing Essentials:
- Psychotherapy session time must be documented explicitly in clinical notes.
- Telehealth Place of Service (POS) 02 (Telehealth Provided Other than in Patient's Home) vs. POS 10 (Telehealth Provided in Patient's Home).
- Mental Health Parity Act mandates non-discriminatory copays and session limits by commercial payers.
Behavioral and mental health practices face distinct billing nuances. From psychiatric diagnostic evaluations to timed psychotherapy sessions and telehealth place-of-service modifiers, compliant billing requires specialized expertise.
Core Psychotherapy CPT Codes
- 90791: Psychiatric Diagnostic Evaluation without medical services (typically 60–90 min).
- 90792: Psychiatric Diagnostic Evaluation with medical services (prescribing provider).
- 90834: Psychotherapy, 45 minutes with patient (time range: 38 to 52 minutes).
- 90837: Psychotherapy, 60 minutes with patient (time range: 53 minutes and above).
- 90785: Interactive Complexity add-on code for play therapy or multi-family involvement.
Telehealth Modifiers and Compliance
Navigating Modifier 95, Modifier FQ (audio-only), and POS 10 ensures Medicare and commercial claims are reimbursed at parity with in-person visits. MediPlus Billing provides specialized behavioral health billing support tailored to psychiatrists, psychologists, LCSWs, and LMFTs.
Written by Elena Rostova, CPC
Behavioral Health Billing Specialist
Dedicated healthcare revenue cycle specialist providing industry insights to help medical practices optimize compliance, reduce denials, and maximize collections.
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