Provider and payer enrollment
Match the rendering NPI, taxonomy, license, supervision, and enrollment to the service. A psychiatrist, psychologist, PMHNP, therapist, MFT, or counselor may have different billing permissions under the same plan. Check behavioral-health carve-outs and visit limits as well as active coverage.
The service documented
Distinguish diagnostic evaluation, psychotherapy, medication-management E/M, crisis, family or group therapy, and testing. Check the diagnosis, treatment plan, and time supporting the selected code; an appointment label alone cannot establish what was delivered.
Psychotherapy with E/M
Check for a primary E/M service and separately identifiable psychotherapy documentation before using an add-on code. Reconcile the recorded psychotherapy time with the code rather than carrying forward the previous visit's charges.
Telehealth
Check patient location, consent, modality, POS, modifiers, and state licensure against the payer's rules. Surface audio-only restrictions or a behavioral-health benefit administered by a different payer.
Testing and collaborative care
For testing, retain the order, scoring, interpretation, and supervision record. For CoCM/BHI, check consent, the registry, care-manager time, psychiatric consultant review, and monthly thresholds. Keep 99484 and CoCM billing paths distinct.