Mental and behavioural disorders (F01–F99)
Chapter 5 of the ICD-10-CM, coded from F01 to F99, includes diagnoses related to a wide range of mental and behavioral disorders. These codes are used to identify conditions that affect mood, thinking, behavior, and emotional well-being.
This chapter covers disorders such as depression, anxiety, schizophrenia, bipolar disorder, and substance abuse, as well as developmental and neurocognitive disorders. It helps healthcare providers document and track mental health conditions, guiding treatment and support strategies. The codes also include behavioral issues linked to various psychological conditions and some organic brain syndromes caused by physical or chemical changes in the brain. Understanding and accurately applying these codes supports clear communication among medical professionals and helps improve patient care in mental health services.
- Mental disorders due to known physiological conditions (F01-
- Mental and behavioral disorders due to psychoactive substanc
- Schizophrenia, schizotypal, delusional, and other non-mood p
- Mood [affective] disorders (F30-F39)
- Anxiety, dissociative, stress-related, somatoform and other
- Behavioral syndromes associated with physiological disturban
- Disorders of adult personality and behavior (F60-F69)
- Intellectual disabilities (F70-F79)
- Pervasive and specific developmental disorders (F80-F89)
- Behavioral and emotional disorders with onset usually occurr
- Unspecified mental disorder (F99)
Mental and behavioural disorders (F01–F99)
Includes: disorders of psychological development
Excludes2: symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Mental disorders due to known physiological conditions (F01-F09)
- Vascular dementia (F01)
- Dementia in other diseases classified elsewhere (F02)
- Unspecified dementia (F03)
- Amnestic disorder due to known physiological condition (F04)
- Delirium due to known physiological condition (F05)
- Other mental disorders due to known physiological condition (F06)
- Personality and behavioral disorders due to known physiological condition (F07)
- Unspecified mental disorder due to known physiological condition (F09)
Mental and behavioral disorders due to psychoactive substance use (F10-F19)
- Alcohol related disorders (F10)
- Opioid related disorders (F11)
- Cannabis related disorders (F12)
- Sedative, hypnotic, or anxiolytic related disorders (F13)
- Cocaine related disorders (F14)
- Other stimulant related disorders (F15)
- Hallucinogen related disorders (F16)
- Nicotine dependence (F17)
- Inhalant related disorders (F18)
- Other psychoactive substance related disorders (F19)
Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
- Schizophrenia (F20)
- Schizotypal disorder (F21)
- Delusional disorders (F22)
- Brief psychotic disorder (F23)
- Shared psychotic disorder (F24)
- Schizoaffective disorders (F25)
- Other psychotic disorder not due to a substance or known physiological condition (F28)
- Unspecified psychosis not due to a substance or known physiological condition (F29)
Mood [affective] disorders (F30-F39)
Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59)
- Eating disorders (F50)
- Sleep disorders not due to a substance or known physiological condition (F51)
- Sexual dysfunction not due to a substance or known physiological condition (F52)
- Mental and behavioral disorders associated with the puerperium, not elsewhere classified (F53)
- Psychological and behavioral factors associated with disorders or diseases classified elsewhere (F54)
- Abuse of non-psychoactive substances (F55)
- Unspecified behavioral syndromes associated with physiological disturbances and physical factors (F59)
Disorders of adult personality and behavior (F60-F69)
Intellectual disabilities (F70-F79)
Pervasive and specific developmental disorders (F80-F89)
- Specific developmental disorders of speech and language (F80)
- Specific developmental disorders of scholastic skills (F81)
- Specific developmental disorder of motor function (F82)
- Pervasive developmental disorders (F84)
- Other disorders of psychological development (F88)
- Unspecified disorder of psychological development (F89)
Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98)
- Attention-deficit hyperactivity disorders (F90)
- Conduct disorders (F91)
- Emotional disorders with onset specific to childhood (F93)
- Disorders of social functioning with onset specific to childhood and adolescence (F94)
- Tic disorder (F95)
- Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F98)
Unspecified mental disorder (F99)
- Mental disorder, not otherwise specified (F99)
