CPT 90834 + ICD-10 F31.81: Bipolar II disorder
Psychotherapy, 45 minutes billed with Bipolar II disorder — documentation requirements, denial reasons, modifiers, and reimbursement context.
Compatibility Notes
Appropriate for 45-minute psychotherapy sessions with Bipolar II patients. IPSRT, CBT, and DBT are evidence-based modalities for Bipolar II. Medication management collaboration should be documented. Most payers cover this without prior authorization for standard outpatient sessions.
Documentation Required
- ✓Session start and stop times confirming 38–52 minutes
- ✓Bipolar II diagnosis with hypomanic and depressive episode history
- ✓Current mood state
- ✓Psychotherapy modality appropriate for bipolar disorder
- ✓Prescriber coordination noted
- ✓Safety screen
Common Denial Reasons
- ✗Notes do not reflect clinical complexity of bipolar disorder management
- ✗Hypomania criteria not documented in the record
- ✗Session time outside 38–52 minute range
Applicable Modifiers
Reimbursement Notes
OON UCR $100–$165. Bipolar II is a chronic condition; annual authorization renewals are common. Mental health parity protects against disproportionate benefit restrictions.
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