CPT · Add-on services
90833: Psychotherapy add-on to an E/M visit, 30 minutes
90833 reports approximately 30 minutes of psychotherapy — generally 16 to 37 minutes — delivered in the same encounter as a separately reported evaluation and management service. It is an add-on code and is never billed alone.
What it covers
The psychotherapy time reported must be separate from, and additional to, the time and work supporting the E/M service. Two distinct services in one encounter means two distinct documentation elements in one note.
Because the E/M level cannot be selected on total time when psychotherapy is billed alongside it, the E/M has to stand on medical decision making. This is the single most misunderstood aspect of the pairing.
When to use it
- A medication management visit that also includes a discrete psychotherapy component
- Encounters where both services are clinically indicated and separately documented
Where the boundary sits
| Compared with | The deciding rule |
|---|---|
| 90836 | 90836 covers roughly 45 minutes of add-on psychotherapy time; 90838 covers roughly 60. |
| 90834 | Use the standalone therapy code when no E/M service is reported for the encounter. |
Documentation that keeps it paid
- Select the E/M level on medical decision making, not total time
- Document the psychotherapy time separately and explicitly
- Record the therapy modality and interventions as a distinct section of the note
Denial & audit triggers
E/M level selected on time
When psychotherapy is reported alongside, the E/M cannot be leveled on time. Doing so undermines both services on review.
Single blended narrative
One paragraph describing the whole encounter cannot establish two separately reportable services.
Reported without a primary code
Add-on codes deny automatically when the primary service is missing or denied.
How it pairs with other codes
- Always reported with a primary E/M service on the same date by the same clinician
- Not reported with a standalone psychotherapy code for the same encounter
Questions we get asked
- Can the E/M be billed on time when 90833 is added?
- No. The E/M level must be supported by medical decision making, because the psychotherapy time is being reported separately.
- Can 90833 be billed alone?
- No. It is an add-on and requires a primary E/M service on the same date.
Reference only, and typical rather than universal: coverage, modifier requirements, and payment vary by payer, plan, state, and provider type. Confirm current payer policy before billing. CPT is a registered trademark of the American Medical Association; official descriptors are not reproduced here.
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