CPT 90834 + ICD-10 F43.12: Post-traumatic stress disorder, chronic
Psychotherapy, 45 minutes billed with Post-traumatic stress disorder, chronic — documentation requirements, denial reasons, modifiers, and reimbursement context.
CPT Code
90834
Psychotherapy, 45 minutes
ICD-10 Code
F43.12
Post-traumatic stress disorder, chronic
Compatibility Notes
Appropriate for chronic PTSD patients in the stabilization or maintenance phase of trauma treatment where 45-minute sessions are clinically appropriate. The chronic specifier (F43.12) is preferred over unspecified (F43.10) when trauma onset was more than 3 months prior.
Documentation Required
- ✓Session start and stop times confirming 38–52 minutes
- ✓Chronic PTSD diagnosis with trauma onset confirming 3+ month chronicity
- ✓Current treatment phase documented (stabilization, processing, integration)
- ✓PCL-5 or equivalent tracked
- ✓Safety screen
Common Denial Reasons
- ✗Session time outside 38–52 minute range
- ✗Trauma onset less than 3 months — use F43.10 (acute) or F43.11
- ✗No outcome measure tracked for chronic condition
Applicable Modifiers
Reimbursement Notes
OON UCR $100–$165. Chronic PTSD with 45-minute sessions is well-accepted by payers when clinical progress is documented.
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