Mental Health Diagnostic Code Ranges

Revised: February 27, 2020

Use the appropriate codes from this table when billing for a condition of a child or an adult with an organic disorder of the brain or a clinically significant disorder of thought, mood, perception, orientation, memory or behavior. Only ICD 10 codes in the Mental Health Diagnostic Code Ranges chart are billable for Mental Health services. Effective June 1, 2019, unspecified diagnosis codes and R-Codes may be used to bill up to 10 non-intensive outpatient mental health services. Non-intensive mental health services include outpatient psychotherapy and psychoeducation. Unspecified diagnosis codes cannot be used in claims for inpatient or residential treatment; nor for intensive outpatient services for adults and children including:

· Children’s Therapeutic Services and Supports

· Adult Rehabilitation Mental Health Services

· Assertive Community Treatment

· Intensive treatment in foster care

· Partial hospitalization program

· Dialectical behavior therapy

· Intensive Residential Treatment Services

· Youth Assertive Community Treatment

Mental Health Diagnostic Code Ranges

Mental disorders due to known physiological conditions (F01–F09)

Schizophrenia, schizotypal, delusional and other non-mood psychotic disorders (F20–F29)

Mood [affective] disorders (F30–F39)

Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40–F48.9)

Behavioral syndromes associated with physiological disturbances and physical factors (F50–F59)

Disorder of adult personality and behavior (F60–F68.89)

Pervasive and specific developmental disorders (F80.81–F89)

Behavioral and emotional disorders with onset usually occurring in early childhood and adolescence (F90–F98.9)

Other symptoms and signs involving general sensations and perceptions (R44–R44.9)

Symptoms and signs involving emotional state (R45–R45.89)

Symptoms and signs involving appearance and behavior (R46–R46.8)

Key: – means “through” for all ranges

Non-Eligible Mental Health Diagnostic Codes
Mental and behavioral disorders due to psychoactive substance use range (F10–F19) are outside the mental health policy scope. Unspecified disorder of adult personality and behavior (F69) is overly vague and not helpful in identifying needs or supporting treatment planning. Mental disorder, not otherwise specified (F99), already under the “Unspecified mental disorder” range, is too vague to be of any use in the process of narrowing down to a clear diagnosis.

Behavioral Health Homes Services Diagnostic Codes
All ICD-10 mental, behavioral and neurological disorder diagnosis codes (F01 – F99) are allowed for behavioral health home (BHH) services, including the R-codes listed in the Mental Health Diagnostic Code Ranges chart. There is no limit on the use of unspecified diagnosis codes and R-codes for BHH services.