01/13/2026
🧾 CPT 90791 — Psychiatric Diagnostic Evaluation
CPT 90791 is used to assess mental health conditions and establish an initial treatment plan — making clear diagnostic intent critical for proper reimbursement.
Incomplete or unclear documentation can lead to:
⚠️ Denials
⚠️ Downcoding
⚠️ Delayed payments
At BAC Office, LLC, we support mental health practices by helping them:
✔️ Document diagnostic evaluations correctly
✔️ Meet payer requirements
✔️ Reduce audit risk
✔️ Maintain compliant billing workflows
📞 808-909-2003
📧 info@bac-office.com
Billing | Administration | Credentialing