Mental health ICD-10 codes.
Browse 2026 ICD-10-CM F-codes for therapy and behavioral-health billing. Eleven categories, structured by severity and presentation — built for accurate documentation, treatment planning, and clean claim submission.
F-categories
Parent codes
Leaf codes
Browse by category
F01-F09
Mental disorders due to known physiological conditions
Cognitive impairment and behavioral disorders attributable to organic, physical, or substance-related causes.
F10-F19
Mental and behavioral disorders due to psychoactive substance use
Alcohol-, opioid-, cannabis-, sedative-, stimulant-, hallucinogen-, and other substance-related disorders.
F20-F29
Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
Schizophrenia spectrum and other primary psychotic disorders.
F30-F39
Mood [affective] disorders
Manic episodes, bipolar disorder, depressive episodes, recurrent depression, and persistent mood disorders.
F40-F49
Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
Phobias, panic, GAD, OCD, PTSD, acute stress, adjustment, dissociative, and somatoform disorders.
F50-F59
Behavioral syndromes associated with physiological disturbances and physical factors
Eating disorders, non-organic sleep disorders, sexual dysfunction not due to organic causes, postpartum disorders.
F60-F69
Disorders of adult personality and behavior
Personality disorders, impulse-control disorders, gender identity-related conditions, and habit disorders.
F70-F79
Intellectual disabilities
Mild, moderate, severe, and profound intellectual disability classifications.
F80-F89
Pervasive and specific developmental disorders
Autism spectrum, speech and language disorders, specific learning disorders, motor function disorders.
F90-F98
Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
ADHD, conduct disorder, ODD, attachment disorders, tic disorders, enuresis, and other childhood-onset conditions.
F99
Unspecified mental disorder
Catch-all for mental disorder not otherwise classified.
This reference is provided for billing and documentation guidance only. It is not medical advice. For clinical decision-making, consult the current CMS ICD-10-CM Official Guidelines for Coding and Reporting, and verify code applicability against the patient's documented clinical findings.
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