---
title: "ICD-10-CM F41.9: Anxiety disorder, unspecified | BillingBrief"
description: "Use F41.9 when the record documents an anxiety disorder but the provider hasn't named a more specific type (generalized, panic, mixed). If the type is…"
canonical: "https://billingbrief.com/icd10/f41.9/"
language: "en"
---

# F41.9 Anxiety disorder, unspecified

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

Use F41.9 when the record documents an anxiety disorder but the provider hasn't named a more specific type (generalized, panic, mixed). If the type is documented, code that instead.

## 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

-   Anxiety NOS

### Excludes2

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

-   anxiety in:
-   acute stress reaction ([F43.0](https://billingbrief.com/icd10/f43.0/))
-   transient adjustment reaction (F43.2)
-   neurasthenia (F48.8)
-   psychophysiologic disorders (F45.-)
-   separation anxiety (F93.0)

## Related codes

-   [`F41.0` Panic disorder \[episodic paroxysmal anxiety\] ICD-10-CM](https://billingbrief.com/icd10/f41.0/)
-   [`F41.1` Generalized anxiety disorder ICD-10-CM](https://billingbrief.com/icd10/f41.1/)
-   [`F41.3` Other mixed anxiety disorders ICD-10-CM](https://billingbrief.com/icd10/f41.3/)
-   [`F41.8` Other specified anxiety disorders ICD-10-CM](https://billingbrief.com/icd10/f41.8/)

## Common questions

### Is F41.9 a billable code?

Yes. F41.9 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

F41 Other anxiety 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/).