All ICD10 Codes

F40

Non-Billable
ChapterF01–F99
Rankcategory
Official Description

Phobic anxiety disorders

Use a more specific code (2 billable, 3 non-billable)
F40.0Agoraphobiahas subcodesF40.1Social phobiashas subcodesF40.2Specific (isolated) phobiashas subcodesF40.8Other phobic anxiety disordersF40.9Phobic anxiety disorder, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (F01-F99).

CH5 Parent Instructions

Includes
  • disorders of psychological development
Excludes2(Not included here. Code separately if applicable.)
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Clinical Hierarchy

BillableHas subcodes
CH5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
F40-F48Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
F40Phobic anxiety disordersNot billable
F40.0AgoraphobiaSubcodes
F40.1Social phobiasSubcodes
F40.2Specific (isolated) phobiasSubcodes
F40.8Other phobic anxiety disordersBillable
F40.9Phobic anxiety disorder, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to F40:

chapterCH5
Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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