The denial pattern
A psychiatric visit that combines medication management with psychotherapy is billed as an E/M code plus an add-on. The add-on is only payable when the note supports it — typically separately documented psychotherapy time. Missing or vague documentation sends the claim back as CO-16, even when the diagnosis and the base code are correct.
How we prevent it
- E/M and add-on codes reviewed against the note before submission
- Documentation gaps sent back to the provider, not guessed at
- Modifier and place-of-service rules applied for telepsychiatry
- Prior authorization tracked where payers require it
- Recurring documentation issues reported monthly so templates can change
Medication management with psychotherapy
A medication-management visit is billed with an office E/M code (99212–99215 for established patients). When the psychiatrist or psychiatric nurse practitioner also provides psychotherapy in the same visit, an add-on is reported with it: 90833 for about 30 minutes, 90836 for about 45 and 90838 for 60 or more. The psychotherapy time has to be separate from the time spent on the E/M service, and the E/M level has to be supported without counting that time.
That is where claims fail. A note that records one total visit time, or psychotherapy without its own time and content, gives the payer what it needs to deny the add-on — or the whole claim.
Psychiatric nurse practitioners
Many psychiatric practices bill substantially through PMHNPs. Whether a nurse practitioner bills under their own NPI, and at what rate, depends on the payer, the state's practice rules and the enrollment on file. We enroll each PMHNP individually with Medicare, Medicaid and commercial panels, link them to the group, and check each payer's rules before the first claim goes out.
Telepsychiatry
Payers differ on the place-of-service code, the telehealth modifier and whether audio-only visits are covered, and prescribing controlled substances by telehealth carries its own DEA rules. We apply each payer's current billing rule per claim and keep DEA registrations tracked for every state you prescribe in.