CPT 90791 + ICD-10 F33.9: Major depressive disorder, recurrent, unspecified
Psychiatric diagnostic evaluation billed with Major depressive disorder, recurrent, unspecified — documentation requirements, denial reasons, modifiers, and reimbursement context.
CPT Code
90791
Psychiatric diagnostic evaluation
ICD-10 Code
F33.9
Major depressive disorder, recurrent, unspecified
Common Modifiers
Compatibility Notes
Used at intake when the patient has a recurrent MDD course but severity has not yet been specified. The prior episode history must be documented in the evaluation. Refine to a severity specifier at the first therapy session.
Documentation Required
- ✓Comprehensive evaluation with prior MDD episode history
- ✓Current episode symptoms and PHQ-9 at intake
- ✓Risk assessment
- ✓Treatment plan initiated
Common Denial Reasons
- ✗Prior episode not documented to justify recurrent specifier
- ✗90791 billed more than once per year by same provider
- ✗Evaluation note lacks diagnostic evaluation scope
Applicable Modifiers
Reimbursement Notes
OON UCR $175–$350. Refine the severity specifier at the first therapy session to reduce audit risk.
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