Dissociative and conversion disorders (F44) ICD-10-CM
The F44 code range covers dissociative and conversion disorders with 12 ICD-10-CM diagnosis codes. 10 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- conversion hysteria
- conversion reaction
- hysteria
- hysterical psychosis
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- malingering [conscious simulation] Z76.5
Codes in the F44 Range 12 codes · 10 billable
- F44 Dissociative and conversion disordersNon-billable
- F44.0 Dissociative amnesia
- F44.1 Dissociative fugue
- F44.2 Dissociative stupor
- F44.4 Conversion disorder with motor symptom or deficit
- F44.5 Conversion disorder with seizures or convulsions
- F44.6 Conversion disorder with sensory symptom or deficit
- F44.7 Conversion disorder with mixed symptom presentation
- F44.8 Other dissociative and conversion disordersNon-billable
- F44.81 Dissociative identity disorder
- F44.89 Other dissociative and conversion disorders
- F44.9 Dissociative and conversion disorder, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the F44 range.
Catalepsy
A condition characterized by inactivity, decreased responsiveness to stimuli, and a tendency to maintain an immobile posture. The limbs tend to remain in whatever position they are placed (waxy flexibility). Catalepsy may be associated with PSYCHOTIC DISORDERS (e.g., SCHIZOPHRENIA, CATATONIC), nervous system drug toxicity, and other conditions.
Conversion Disorder
A disorder whose predominant feature is a loss or alteration in physical functioning that suggests a physical disorder but that is actually a direct expression of a psychological conflict or need.
Dissociative Amnesia
A disorder characterized by a retrospective gap in memory of important personal information, usually of a traumatic or stressful nature; the memory loss far exceeds ordinary forgetfulness and is not the result of substance use or the consequence of a medical condition.
Dissociative Disorders
Sudden temporary alterations in the normally integrative functions of consciousness.
Dissociative Fugue
A disorder characterized by sudden, unexpected travel away from one's home or place of work accompanied by an inability to recall one's past; the individual is confused about his or her personal identity and may assume a new identity.
Dissociative Identity Disorder
A dissociative disorder in which the individual adopts two or more distinct personalities. Each personality is a fully integrated and complex unit with memories, behavior patterns and social friendships. Transition from one personality to another is sudden.
Hysteria
Historical term for a chronic, but fluctuating, disorder beginning in early life and characterized by recurrent and multiple somatic complaints not apparently due to physical illness. This diagnosis is not used in contemporary practice.
About the F44 Code Range
Amnesia (memory loss), fugue, and stupor appear alongside conversion disorders identified by their symptoms.
F44.0, F44.1, and F44.2 distinguish the named dissociative disorders. Conversion disorder codes separate motor symptoms or deficits (F44.4), seizures or convulsions (F44.5), sensory symptoms or deficits (F44.6), and mixed symptoms (F44.7).
F44.8 groups other dissociative and conversion disorders, with subdivisions for dissociative identity disorder (F44.81) and other disorders (F44.89). F44.9 is unspecified.
Questions About This Page
How many billable codes are in the F44 range?
Of the 12 codes in this range, 10 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the F44 range classify?
The range classifies dissociative and conversion disorders. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
