ICD-10-CM · Chapter 5 · F01–F99
F40.9
Phobic anxiety disorder, unspecified
Mental, behavioral and neurodevelopmental disorders
Quick facts
- Code
- F40.9
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 5 — Mental, behavioral and neurodevelopmental disorders
- Category
- F40 — Phobic anxiety disorders
- Specificity
- 4 characters
How coders use this code
ICD-10-CM F40.9 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of phobic anxiety disorder, unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in F40
- F40Phobic anxiety disorders
- F40.0Agoraphobia
- F40.00Agoraphobia, unspecified
- F40.01Agoraphobia with panic disorder
- F40.02Agoraphobia without panic disorder
- F40.1Social phobias
- F40.10Social phobia, unspecified
- F40.11Social phobia, generalized
- F40.2Specific (isolated) phobias
- F40.21Animal type phobia
- F40.210Arachnophobia
- F40.218Other animal type phobia
- F40.22Natural environment type phobia
- F40.220Fear of thunderstorms
- F40.228Other natural environment type phobia
Want to learn coding?
Master ICD-10-CM in 90 days.
Medita's 90-day curriculum is calibrated to the CPC (AAPC), CCA, and CCS (AHIMA) exam blueprints. Day 1 is free.