ICD-10 codes for anxiety
The ICD-10-CM codes care teams use for anxiety, with the official FY2027 descriptor, when each code applies, and the screening measure that informs it. Codes with a full reference page are linked.
Reference only. Criteria summaries are for clinician orientation. A full clinical evaluation is required before any diagnosis is recorded.
Anxiety disorders (F41)
Code Official ICD-10-CM descriptor When it applies Scale F41.1 Generalized anxiety disorder Excessive, hard-to-control worry about many things, more days than not. Includes Anxiety neurosis, reaction, and state. GAD-7 F41.0 Panic disorder [episodic paroxysmal anxiety] Recurrent panic attacks without agoraphobia. Includes Panic attack and Panic state. PDSS, GAD-7 F41.9 Anxiety disorder, unspecified Clinically significant anxiety documented without its type. Includes Anxiety NOS. GAD-7 F41.8 Other specified anxiety disorders Documented anxiety with no specific code. Includes Mixed anxiety and depressive disorder. GAD-7, PHQ-9 F41.3 Other mixed anxiety disorders Mixed anxiety disorders not classified elsewhere in F41. GAD-7
Phobic anxiety disorders (F40)
Code Official ICD-10-CM descriptor When it applies Scale F40.10 Social phobia, unspecified Social anxiety disorder, without the generalized form documented. F40.1 includes Social anxiety disorder. LSAS, SPIN F40.11 Social phobia, generalized Social anxiety documented as generalized. LSAS, SPIN F40.00 Agoraphobia, unspecified Agoraphobia, with or without panic disorder not documented. GAD-7 F40.01 Agoraphobia with panic disorder Panic disorder with agoraphobia; excludes panic disorder without agoraphobia (F41.0). PDSS F40.02 Agoraphobia without panic disorder Agoraphobia with no panic disorder. GAD-7 F40.2- Specific (isolated) phobias A category: bill the six-character code for the specific phobia (F40.210 to F40.298), grouped by animal, natural environment, blood-injection-injury, situational, and other types.
Anxiety after a stressor or trauma (F43)
Code Official ICD-10-CM descriptor When it applies Scale F43.22 Adjustment disorder with anxiety Anxiety that predominates after an identifiable stressor, within the adjustment disorder time frame. GAD-7 F43.23 Adjustment disorder with mixed anxiety and depressed mood Anxiety and low mood, both prominent, after an identifiable stressor. GAD-7, PHQ-9 F43.0 Acute stress reaction An acute reaction to an exceptional stressor. Includes Acute crisis reaction. IES-R F43.10 Post-traumatic stress disorder, unspecified PTSD with the course (acute or chronic) not documented. PCL-5 F43.12 Post-traumatic stress disorder, chronic PTSD documented as chronic. PCL-5
Other anxiety-related codes
Code Official ICD-10-CM descriptor When it applies Scale F93.0 Separation anxiety disorder of childhood Separation anxiety with onset in childhood. SCARED F42.2 Mixed obsessional thoughts and acts Obsessive-compulsive disorder with both obsessions and compulsions. Y-BOCS F06.4 Anxiety disorder due to known physiological condition Anxiety caused by a medical condition, such as hyperthyroidism. GAD-7 F10.280 Alcohol dependence with alcohol-induced anxiety disorder Alcohol-induced anxiety with alcohol dependence; F10.180 (abuse) and F10.980 (use) cover the other patterns. AUDIT
How to choose an anxiety code
- Code to what is known at the encounter. The ICD-10-CM Official Guidelines accept unspecified codes such as F41.9 when the record is insufficient for a more specific code, and say a specific code should not be chosen without documentation to support it.
- Name the pattern. Worry across many areas points to F41.1, recurrent panic attacks to F41.0 (or F40.01 with agoraphobia), and fear of social situations to F40.1-.
- Look for a stressor or trauma. F41 excludes anxiety in acute stress reaction and transient adjustment reaction; anxiety after a stressor may fit F43.22.
- Rule out medical and substance causes. Anxiety caused by a medical condition is coded F06.4, and alcohol-induced anxiety uses F10.180, F10.280, or F10.980; F06.4 excludes anxiety due to substances.
- Measure, then update. Repeating the GAD-7 over the course of care documents severity and change, which supports moving from an unspecified code to a specific one. For depression codes, see ICD-10 codes for depression.
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Frequently asked questions
What is the ICD-10 code for anxiety?
In the FY2027 ICD-10-CM Alphabetic Index, "Anxiety" with no further detail points to F41.9 (Anxiety disorder, unspecified). When the record documents more, a more specific code applies: "Anxiety, generalized" points to F41.1, "Anxiety, panic type" to F41.0, and "Anxiety, depression" to F41.8.
What is the difference between F41.1 and F41.9?
F41.1 (Generalized anxiety disorder) has its own diagnostic criteria, including persistent, hard-to-control worry. F41.9 is the unspecified code for anxiety whose type has not been established. The ICD-10-CM Official Guidelines accept unspecified codes when the record is insufficient for a more specific code; once the clinician's evaluation establishes generalized anxiety disorder, F41.1 applies.
What is the ICD-10 code for anxiety and depression together?
When both meet criteria for their own disorders, code each one, for example F41.1 with an F32 or F33 code. F41.8 (Other specified anxiety disorders) includes "Mixed anxiety and depressive disorder" and "Anxiety depression (mild or not persistent)". When both follow an identifiable stressor, F43.23 (Adjustment disorder with mixed anxiety and depressed mood) is considered.
Does anxiety after a stressful event use an F41 code?
Usually not. Category F41 carries an Excludes2 note for anxiety in acute stress reaction (F43.0) and in transient adjustment reaction (F43.2). Anxiety that predominates after an identifiable stressor may fit F43.22 (Adjustment disorder with anxiety); after a traumatic event, consider F43.0 or the PTSD codes.
Which screening measure informs the anxiety codes?
The GAD-7 is the common choice. In its validation study, a score of 10 or higher had 89% sensitivity and 82% specificity for generalized anxiety disorder (Spitzer et al., 2006). A primary care study found the GAD-7 also performed well as a screener for panic, social anxiety, and post-traumatic stress disorder (area under the curve 0.80 to 0.91; Kroenke et al., 2007). Scores inform the clinician's evaluation; they do not diagnose.
What is the ICD-10 code for panic attacks?
F41.0 (Panic disorder [episodic paroxysmal anxiety]) includes "Panic attack" and "Panic state". F41.0 carries an Excludes1 note for panic disorder with agoraphobia, which is coded F40.01 (Agoraphobia with panic disorder) instead.
Sources & Citations
- 1.Centers for Disease Control and Prevention, National Center for Health Statistics. (2026). ICD-10-CM Tabular List of Diseases and Injuries, Index, and Order File, FY2027 (effective October 1, 2026).
- 2.Centers for Disease Control and Prevention, National Center for Health Statistics. (2026). ICD-10-CM Official Guidelines for Coding and Reporting, FY2027, Sections I.A.9 and I.B.18.
- 3.Spitzer, R. L., Kroenke, K., Williams, J. B. W., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: The GAD-7. Archives of Internal Medicine, 166(10), 1092–1097. https://doi.org/10.1001/archinte.166.10.1092
- 4.Kroenke, K., Spitzer, R. L., Williams, J. B. W., Monahan, P. O., & Löwe, B. (2007). Anxiety disorders in primary care: Prevalence, impairment, comorbidity, and detection. Annals of Internal Medicine, 146(5), 317–325. https://doi.org/10.7326/0003-4819-146-5-200703060-00004