F40.22Header code — not billable
Natural environment type phobia
- Chapter
- 5. Mental, Behavioral and Neurodevelopmental disorders
- Category
- F40
- Effective date
- October 1, 2026
Related codes in category F40
F40Phobic anxiety disordersF40.0AgoraphobiaF40.00Agoraphobia, unspecifiedYesF40.01Agoraphobia with panic disorderYesF40.02Agoraphobia without panic disorderYesF40.1Social phobiasF40.10Social phobia, unspecifiedYesF40.11Social phobia, generalizedYesF40.2Specific (isolated) phobiasF40.21Animal type phobiaF40.210ArachnophobiaYesF40.218Other animal type phobiaYes
Frequently asked questions
What is ICD-10 code F40.22?
F40.22 is an ICD-10-CM diagnosis code for Natural environment type phobia.
Is F40.22 a billable code?
No. F40.22 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is F40.22 in?
F40.22 falls under Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
When did F40.22 become effective?
F40.22 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to F40.22?
F40.22 belongs to category F40, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.