---
title: "ICD-10-CM F90.9: Attention-deficit hyperactivity disorder… | BillingBrief"
description: "ICD-10-CM code F90.9: Attention-deficit hyperactivity disorder, unspecified type. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/f90.9/"
language: "en"
---

# F90.9 Attention-deficit hyperactivity disorder, unspecified type

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Attention-deficit hyperactivity disorder, unspecified type

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Also covers

-   Attention-deficit hyperactivity disorder of childhood or adolescence NOS
-   Attention-deficit hyperactivity disorder NOS

### Includes

-   attention deficit disorder with hyperactivity
-   attention deficit syndrome with hyperactivity

### Note

-   Codes within categories F90-F98 may be used regardless of the age of a patient. These disorders generally have onset within the childhood or adolescent years, but may continue throughout life or not be diagnosed until adulthood

### Excludes2

Not part of this code, but both can be coded when both are documented.

-   anxiety disorders (F40.-, F41.-)
-   mood \[affective\] disorders (F30-[F39](https://billingbrief.com/icd10/f39/))
-   pervasive developmental disorders (F84.-)
-   schizophrenia (F20.-)

## Related codes

-   [`F90.0` Attention-deficit hyperactivity disorder, predominantly inattentive type ICD-10-CM](https://billingbrief.com/icd10/f90.0/)
-   [`F90.1` Attention-deficit hyperactivity disorder, predominantly hyperactive type ICD-10-CM](https://billingbrief.com/icd10/f90.1/)
-   [`F90.2` Attention-deficit hyperactivity disorder, combined type ICD-10-CM](https://billingbrief.com/icd10/f90.2/)
-   [`F90.8` Attention-deficit hyperactivity disorder, other type ICD-10-CM](https://billingbrief.com/icd10/f90.8/)

## Common questions

### Is F90.9 a billable code?

Yes. F90.9 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

F90 Attention-deficit hyperactivity disorders

Chapter

Mental, behavioral and neurodevelopmental disorders

Billable

Yes

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/).