Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
chapter 5: Mental, Behavioral and Neurodevelopmental Disorders
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers psychological pain disorders, substance use, abuse, dependence and remission, factitious disorder including Munchausen by proxy, and dementia severity.
- Pain disorders related to psychological factors (page 43)
- Mental and behavioral disorders due to psychoactive substance use (page 43)
- Factitious Disorder (page 44)
- Dementia (page 45)
All codes under F40-F48
F40-F48 can't be used on a claim. Pick a billable code below; grey headings group them.
- F40Phobic anxiety disorders
- F40.0Agoraphobia
- F40.00Agoraphobia, unspecified
- F40.01Agoraphobia with panic disorder
- F40.02Agoraphobia without panic disorder
- F40.1Social phobias
- F40.10Social phobia, unspecified
- F40.11Social phobia, generalized
- F40.2Specific (isolated) phobias
- F40.21Animal type phobia
- F40.210Arachnophobia
- F40.218Other animal type phobia
- F40.22Natural environment type phobia
- F40.220Fear of thunderstorms
- F40.228Other natural environment type phobia
- F40.23Blood, injection, injury type phobia
- F40.230Fear of blood
- F40.231Fear of injections and transfusions
- F40.232Fear of other medical care
- F40.233Fear of injury
- F40.24Situational type phobia
- F40.240Claustrophobia
- F40.241Acrophobia
- F40.242Fear of bridges
- F40.243Fear of flying
- F40.248Other situational type phobia
- F40.29Other specified phobia
- F40.290Androphobia
- F40.291Gynephobia
- F40.298Other specified phobia
- F40.8Other phobic anxiety disorders
- F40.9Phobic anxiety disorder, unspecified
- F41Other anxiety disorders
- F41.0Panic disorder [episodic paroxysmal anxiety]
- F41.1Generalized anxiety disorder
- F41.3Other mixed anxiety disorders
- F41.8Other specified anxiety disorders
- F41.9Anxiety disorder, unspecified
- F42Obsessive-compulsive disorder
- F42.2Mixed obsessional thoughts and acts
- F42.3Hoarding disorder
- F42.4Excoriation (skin-picking) disorder
- F42.8Other obsessive-compulsive disorder
- F42.9Obsessive-compulsive disorder, unspecified
- F43Reaction to severe stress, and adjustment disorders
- F43.0Acute stress reaction
- F43.1Post-traumatic stress disorder (PTSD)
- F43.10Post-traumatic stress disorder, unspecified
- F43.11Post-traumatic stress disorder, acute
- F43.12Post-traumatic stress disorder, chronic
- F43.2Adjustment disorders
- F43.20Adjustment disorder, unspecified
- F43.21Adjustment disorder with depressed mood
- F43.22Adjustment disorder with anxiety
- F43.23Adjustment disorder with mixed anxiety and depressed mood
- F43.24Adjustment disorder with disturbance of conduct
- F43.25Adjustment disorder with mixed disturbance of emotions and conduct
- F43.29Adjustment disorder with other symptoms
- F43.8Other reactions to severe stress
- F43.81Prolonged grief disorder
- F43.89Other reactions to severe stress
- F43.9Reaction to severe stress, unspecified
- F44Dissociative and conversion disorders
- F44.0Dissociative amnesia
- F44.1Dissociative fugue
- F44.2Dissociative stupor
- F44.4Conversion disorder with motor symptom or deficit
- F44.5Conversion disorder with seizures or convulsions
- F44.6Conversion disorder with sensory symptom or deficit
- F44.7Conversion disorder with mixed symptom presentation
- F44.8Other dissociative and conversion disorders
- F44.81Dissociative identity disorder
- F44.89Other dissociative and conversion disorders
- F44.9Dissociative and conversion disorder, unspecified
- F45Somatoform disorders
- F45.0Somatization disorder
- F45.1Undifferentiated somatoform disorder
- F45.2Hypochondriacal disorders
- F45.20Hypochondriacal disorder, unspecified
- F45.21Hypochondriasis
- F45.22Body dysmorphic disorder
- F45.29Other hypochondriacal disorders
- F45.4Pain disorders related to psychological factors
- F45.41Pain disorder exclusively related to psychological factors
- F45.42Pain disorder with related psychological factors
- F45.8Other somatoform disorders
- F45.9Somatoform disorder, unspecified
- F48Other nonpsychotic mental disorders
- F48.1Depersonalization-derealization syndrome
- F48.2Pseudobulbar affect
- F48.8Other specified nonpsychotic mental disorders
- F48.9Nonpsychotic mental disorder, unspecified
F40-F48 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
Other codes that refer to F40-F48
Notes on these codes point to F40-F48.
- F93.0 Excludes2: nonpsychotic mental disorders (F40-F48)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Phobias
A phobia is a type of anxiety disorder. It is a strong, irrational fear of something that poses little or no real danger. There are many specific phobias. Acrophobia is a fear of heights. Agoraphobia is a fear of public places, and claustrophobia is a fear of closed-in places. If you become anxious and extremely self-conscious in everyday social situations, you could have a social phobia. Other common phobias involve tunnels, highway driving, water, flying, animals and blood.
Read more about phobias on MedlinePlus