How to document split treatment so both charts hold

In split treatment, a therapist owns psychotherapy and a prescriber owns medication, often in different organizations. Each chart has to make sense if the other chart never arrives. Write the work you did, name the other clinician and the last time you aligned, and hand off risk or med effects without pasting their SOAP into yours.

“Continue meds per psych” in a 90837, or “continue CBT” in a 99214 with no evidence you know what CBT is targeting, is how split care looks uncoordinated on audit.

The thread inside one note is still golden thread. Across two notes, the thread is a documented handshake.

Agree who owns which part of the plan

Once, in writing, in both charts (intake or a coordination note):

• Therapist: modality, frequency, treatment-plan goals they will work.
• Prescriber: medicines, monitoring (lithium, clozapine ANC, UDS), refills.
• Who is first call for SI after hours.
• How you will communicate (release on file, phone, shared EHR) and how often.

If there is no ROI and you are in different groups, say so. You may still treat. You may not pretend you read a note you have never seen. Part 2 records need a Part 2-compliant consent before SUD detail moves; see 42 CFR Part 2.

When ownership changes (“I’ll handle the benzo taper, you hold exposure work”), update both plans in the next visit, not in a hallway.

Write the therapist note for therapy work

Your 90834/90837 stands on psychotherapy: intervention, response, goal, risk as you assessed it today. You may record med effects the patient reports (“hands shaky since the lithium went to 900”) as Data, and that you messaged the prescriber as Plan. You do not need to re-justify the lithium dose. You also do not bill 90833. That add-on is for a prescriber’s E/M plus psychotherapy.

If the patient asks you to change a dose, chart the request and the routing. Do not coach a clandestine taper in a therapy note while the 99214 still says “stable on clonazepam 1 mg TID.”

Risk: if you complete a Stanley-Brown plan, say so and send the means-restriction step to the prescriber when it affects meds in the house. See Stanley-Brown safety plan.

Write the prescriber note for medication work

Your E/M stands on interval symptoms, regimen, monitoring, MDM, refills. You may record that they are in weekly CBT with [name] and that last coordination was [date]. You do not need a three-paragraph recap of their exposure hierarchy unless it changes a medical decision (for example, you are not starting a PRN benzo because it would blunt exposure).

If you add 90833, that psychotherapy has to be yours, separately documented. Do not bill 90833 for “discussed that they should tell their therapist.” See 90833 add-on psychotherapy.

Labs, PDMP, pregnancy counseling, ANC: those live here even if the therapist heard about them first.

Document the handoff without cloning the other chart

A coordination line is enough when things are quiet:

Spoke with [therapist], LCSW, 9/12/2026. Aligned: hold clonazepam, continue exposure; I will not add hydroxyzine PRN. Next shared check after the 10/1 family session.

When things are not quiet, be specific: new SI, missed ANC, UDS unexpected, pregnancy, taper started. Quote the minimum. Do not dump the therapist’s process notes into the medical record, and do not dump your lithium levels into a therapy chart beyond what the therapist needs for safety.

If you never reach each other, chart the attempts and that you are treating without the other note. That is honest. Invented “coordination with existing provider” is not.

Same-day visits: two services can be payable. Each note still needs its own medical necessity. Do not write one narrative and bill it twice.

Sample paired language

Therapist (excerpt):

Patient reports tremor since lithium increase last week. No SI. Exposure
to on-ramp completed once (SUDS 7 to 5). Messaged Dr. [name] today re:
tremor and request for no PRN benzo. Goal 1 (drive to work) still active.

Prescriber (excerpt):

Message from [therapist] 9/14: tremor, exposure work ongoing, please no
PRN benzo. Lithium ER 900 mg, trough 0.72 last week. Fine tremor, no
ataxia. Continue 900 mg. No benzo added. Coordination: I replied same
day agreeing. Follow-up 6 weeks, or sooner if tremor coarsens.

Two short notes. Either one can travel to a reviewer without the other. Together they do not contradict.

Questions people ask

The patient wants us not to talk. Then you need a clear ROI refusal in both charts and a safety exception policy you will actually follow. You can still ask the patient to carry information. You cannot sign notes that claim collaboration you are forbidden to do.

We share an EHR. Do I still write a handshake? Yes. Shared access is not the same as a dated clinical alignment. Pulling their last note and never mentioning it is how contradictory plans survive.