Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48) ICD-10-CM
The F40–F48 section covers anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders with 92 ICD-10-CM diagnosis codes, of which 71 are billable in fiscal year 2026. The section is organized into the 7 code ranges listed below.
Code Ranges in This Section 7 ranges · 92 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the F40–F48 Code Range
ICD-10 codes F40-F48 identify specific anxiety-related, dissociative, stress-induced, somatoform, and other nonpsychotic mental disorders. These codes cover conditions ranging from phobias and panic disorders to post-traumatic stress disorder and obsessive-compulsive disorder.
This code range includes detailed categories like F40 for phobic anxiety disorders such as agoraphobia ("fear of going out" or "fear of open spaces," coded as F40.00) and social phobias ("fear of public speaking," F40.10). F41 addresses other anxiety disorders including panic disorder (F41.0) and generalized anxiety disorder (F41.1). Obsessive-compulsive disorder and related conditions are captured under F42, while F43 covers reactions to severe stress including acute stress reaction and post-traumatic stress disorder (PTSD, F43.1). Dissociative and conversion disorders like psychogenic amnesia and dissociative identity disorder fall under F44. Somatoform disorders, such as somatization disorder and hypochondriasis (F45.21, synonymous with illness anxiety disorder), are included in F45. Lastly, F48 codes cover other nonpsychotic mental issues like depersonalization-derealization syndrome (F48.1) and pseudobulbar affect (F48.2). This comprehensive set specifically guides the diagnosis and classification of diverse anxiety, stress-related, and somatic symptom conditions critical for clinical documentation and medical coding accuracy.
Questions About This Page
How many codes are in the F40-F48 range?
The F40-F48 range contains 92 ICD-10-CM diagnosis codes in FY 2026. 71 of them are billable, and the rest are category headers that organize the section.
What conditions does F40-F48 cover?
The range covers anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
