F40.9 Phobic anxiety disorder, unspecified
ICD-10-CM · CMS code reference
F40.9 is a phobia documented without its type, including records that say phobia NOS (not otherwise specified) or phobic state NOS. A named type points to agoraphobia (F40.00 to F40.02), social phobia (F40.10, F40.11) or a specific phobia under F40.2.
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
- Phobia NOS
- Phobic state NOS
Related codes
Common questions
Is F40.9 a billable code?
Yes. F40.9 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.