ICD-10 Code F41.9: Anxiety disorder, unspecified
Mental and behavioural disorders
ICD-10 code F41.9 identifies an unspecified anxiety disorder when a more specific anxiety diagnosis is not documented.
Coding guidance
Used when anxiety is documented without meeting criteria for a specific disorder such as generalized anxiety or panic disorder.
More specific codes include F41.1 for generalized anxiety disorder and F41.0 for panic disorder.
Anxiety with depressive features may be more accurately coded to F41.8 or F43.23 depending on presentation.
Documentation and specificity notes
- Move to a specific diagnosis once evaluation supports it.
- Document symptom duration, severity and functional impact.
- Frequently paired with behavioral health session codes requiring diagnostic specificity.
Related codes
This page provides a general summary for educational purposes and is not a substitute for the official ICD-10-CM code set, the ICD-10-CM Official Guidelines for Coding and Reporting, or payer policy. Code sets are updated annually, verify against the current official release before billing.
FAQ
ICD-10 F41.9, frequently asked questions questions
- What is ICD-10 code F41.9?
- ICD-10 code F41.9 identifies an unspecified anxiety disorder when a more specific anxiety diagnosis is not documented.
- Is F41.9 a billable ICD-10 code?
- Yes. F41.9 is a billable and specific ICD-10-CM code that may be used to indicate a diagnosis for reimbursement purposes, provided documentation supports it.
- What documentation supports F41.9?
- Move to a specific diagnosis once evaluation supports it. Document symptom duration, severity and functional impact. Frequently paired with behavioral health session codes requiring diagnostic specificity.
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