CPT 90834 + ICD-10 F33.0: Major depressive disorder, recurrent, mild
Psychotherapy, 45 minutes billed with Major depressive disorder, recurrent, mild — documentation requirements, denial reasons, modifiers, and reimbursement context.
CPT Code
90834
Psychotherapy, 45 minutes
ICD-10 Code
F33.0
Major depressive disorder, recurrent, mild
Common Modifiers
Compatibility Notes
Appropriate for step-down care in recurrent MDD when symptoms are mild and sessions are maintained at 45 minutes. Commonly used during the maintenance phase of treatment. Most payers accept this combination for outpatient therapy without prior authorization.
Documentation Required
- ✓Session start and stop times confirming 38–52 minutes
- ✓Documented recurrent course (prior episodes on record)
- ✓PHQ-9 in mild range (5–9)
- ✓Maintenance phase treatment goals documented
- ✓Risk screen with historical context
Common Denial Reasons
- ✗PHQ-9 inconsistent with mild specifier
- ✗Single episode code used when recurrent course is documented
- ✗Session time outside 38–52 minute range
Applicable Modifiers
Reimbursement Notes
OON UCR $100–$165. Mild recurrent MDD at 45 minutes is a reasonable maintenance-phase billing pattern with broad payer acceptance.
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