---
title: "CPT 90785: Interactive complexity (add-on) | BillingBrief"
description: "An add-on code for psychiatric services made harder by communication factors, such as managing disruptive family members or using play equipment or an…"
canonical: "https://billingbrief.com/cpt/90785/"
language: "en"
---

# 90785 Interactive complexity (add-on)

CPT · [BillingBrief summary](#source)

An add-on code for psychiatric services made harder by communication factors, such as managing disruptive family members or using play equipment or an interpreter with a child.

## What to know

-   Added to codes like 90791, 90832, 90834, 90837, or 90853.
-   Not used with E/M codes alone or with crisis psychotherapy (90839).

## Related codes

-   [`90791` Psychiatric diagnostic evaluation CPT](https://billingbrief.com/cpt/90791/)
-   [`90834` Psychotherapy, about 45 minutes CPT](https://billingbrief.com/cpt/90834/)
-   [`90853` Group psychotherapy CPT](https://billingbrief.com/cpt/90853/)

## From the source

This is BillingBrief’s own explanation, not the official CPT descriptor. For the official code set, see the [American Medical Association](https://www.ama-assn.org/practice-management/cpt).

Code set

CPT

Category

Behavioral health

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).