Other nonpsychotic mental disorders (F48)
ICD-10 code section F48 covers various other nonpsychotic mental disorders. These codes are specifically used to classify mental health conditions that do not involve psychosis but still affect perception, mood, or behavior in distinctive ways.
The category includes F48.1, Depersonalization-derealization syndrome, which is characterized by feelings of unreality about one’s body or surroundings; a condition also known by terms like depersonalization disorder or derealization syndrome. This code helps in documenting trauma- and stressor-related dissociative symptoms. F48.2, Pseudobulbar affect, describes involuntary emotional expression, also called uncontrolled behavior, commonly linked to neurological disorders. The F48.8 code accounts for a diverse range of specified nonpsychotic mental disorders, including culturally specific syndromes and various forms of neuroses such as writer's cramp neurosis or Qi-gong psychotic reaction. Lastly, F48.9 is used when a nonpsychotic mental disorder is present but not clearly specified, covering conditions like generalized neurosis or tension. These codes are vital for accurately identifying and treating nonpsychotic conditions beyond typical mood disorders within the ICD-10 coding system.
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Depersonalization
State in which an individual perceives or experiences a sensation of unreality concerning the self or the environment; it is seen in disorders such as schizophrenia, affection disorders, organic mental disorders, and personality disorders. (APA, Thesaurus of Psychological Index Terms, 8th ed.)
