ICD-10-CM
ICD-10 code for Reaction anxiety: F41.1
The ICD-10-CM index points "Reaction anxiety" to F41.1, Generalized anxiety disorder. F41.1 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in F41
A header groups codes and is not billed. A billable code is one you can report.
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From F41. A note on a category applies to every code under it.
Related conditions
Related pages
- F41.1 code detailsNotes, nearby codes, CMS-HCC group
- Category F41Every code under it
- Chapter 5Mental, behavioral and neurodevelopmental disorders
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Reaction anxiety?
The ICD-10-CM index points "Reaction anxiety" to F41.1, Generalized anxiety disorder. F41.1 is a billable code.
Is F41.1 billable?
Yes. F41.1 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to F41.1?
The CDC tabular list gives 6 Excludes2 notes (may be coded together when both are documented) for F41.1 and the categories above it. They are listed on this page.
What chapter is F41.1 in?
Chapter 5. Mental, behavioral and neurodevelopmental disorders.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.