All ICD10 Codes

F40.9

Billable
ChapterF01–F99
Ranksubcategory
Official Description

Phobic anxiety disorder, unspecified

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (F01-F99).

Instructional Notes

Includes
  • Phobia NOS
  • Phobic state NOS
General instructions are available for the parent sections:
View CH5 Notes

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 disorders
F40.9Phobic anxiety disorder, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to F40.9:

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

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 882
Neuroses Except Depressive

Cross Reference

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