CPT 90837 + ICD-10 F32.1: Major depressive disorder, single episode, moderate
Psychotherapy, 60 minutes billed with Major depressive disorder, single episode, moderate — documentation requirements, denial reasons, modifiers, and reimbursement context.
CPT Code
90837
Psychotherapy, 60 minutes
ICD-10 Code
F32.1
Major depressive disorder, single episode, moderate
Compatibility Notes
A high-specificity combination appropriate for patients experiencing a first depressive episode at moderate severity (PHQ-9 scores 10–14). Most commercial payers and Medicare accept this pairing without prior authorization for 20–26 sessions per benefit year. Documenting the moderate specifier demonstrates diagnostic precision and reduces audit risk.
Documentation Required
- ✓Session start and stop times confirming 53+ minutes
- ✓PHQ-9 score in the moderate range (10–14) or equivalent clinical documentation
- ✓Single-episode MDD clinical criteria satisfied (first lifetime episode)
- ✓Functional impairment in at least one major domain
- ✓Risk assessment including suicidal ideation
- ✓Evidence-based therapeutic approach documented
Common Denial Reasons
- ✗PHQ-9 scores inconsistent with moderate specifier documented in notes
- ✗Billing as single episode (F32.x) when the patient has a prior MDD history — use F33.x for recurrent episodes
- ✗Session time below 53 minutes without a code switch to 90834
Applicable Modifiers
Reimbursement Notes
UCR $130–$210 OON, consistent with other 90837 pairings. Moderate specifier codes are generally processed without additional payer scrutiny compared to unspecified codes.
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