CPT 90834 + ICD-10 F42.2: Mixed obsessional thoughts and acts (OCD)
Psychotherapy, 45 minutes billed with Mixed obsessional thoughts and acts (OCD) — documentation requirements, denial reasons, modifiers, and reimbursement context.
CPT Code
90834
Psychotherapy, 45 minutes
ICD-10 Code
F42.2
Mixed obsessional thoughts and acts (OCD)
Compatibility Notes
Appropriate for 45-minute ERP or ACT-based OCD treatment sessions. The 45-minute format can accommodate one complete exposure trial with processing time. Most payers accept this pairing for outpatient OCD treatment.
Documentation Required
- ✓Session start and stop times confirming 38–52 minutes
- ✓OCD diagnosis with obsessions and compulsions documented
- ✓Y-BOCS or equivalent outcome measure
- ✓ERP hierarchy or ACT approach in treatment plan
- ✓Safety screen for OCD-related distress and suicidal ideation
Common Denial Reasons
- ✗Notes do not reflect structured ERP approach
- ✗No outcome measure tracked
- ✗Session time outside 38–52 minute range
Applicable Modifiers
Reimbursement Notes
OON UCR $100–$165. OCD treatment may require re-authorization every 10–20 sessions. ERP is the gold-standard treatment; document its use explicitly.
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