Quick reference
- When to use
- Use F43.20 when the client's presentation is directly linked to an identifiable stressor or traumatic event and meets the specific criteria for Adjustment Disorder, Unspecified. Document the qualifying event or stressor clearly.
- Duration
- PTSD: symptoms >1 month post-trauma. Acute Stress: 3 days to 1 month. Adjustment Disorders: onset within 3 months of stressor, resolves within 6 months after stressor ends. Reassess timeline regularly.
- Session codes
- Pair with CPT 90837 (60-min, preferred for trauma processing), 90834 (45-min for stabilization), or 90791 (initial evaluation). Add 96127 for PCL-5 or PHQ-9 screening. EMDR/exposure sessions often require 90837.
- Key indicators
- Intrusive memories or flashbacks • Avoidance of trauma reminders • Negative mood or cognition changes • Hyperarousal or hypervigilance • Sleep disturbance • Dissociative symptoms • Clear temporal link to stressor
What F43.20 represents
Adjustment disorders represent a maladaptive response to an identifiable stressor. The symptoms are clinically significant but don't meet criteria for a more specific disorder. Think of it as the psychological growing pains of adapting to change.
Key diagnostic criteria
- Emotional/behavioral symptoms within 3 months of identifiable stressor
- Symptoms are out of proportion to the stressor or cause significant impairment
- Doesn't meet criteria for another mental disorder
- Not normal bereavement
- Resolves within 6 months after stressor ends
Documentation essentials
Identify the specific stressor. Document symptoms and their relationship to the stressor. Note functional impairment.
Differential diagnosis
Consider MDD, GAD, PTSD, and normal stress responses. Adjustment disorder should not be diagnosed if another disorder better accounts for symptoms.
Treatment planning
Brief psychotherapy, supportive counseling, stress management. Address the specific stressor when possible.
Insurance & billing
Widely accepted. Some insurers may limit session counts for adjustment disorders.
Updates & changes
DSM-5 reconceptualized adjustment disorders as stress-response syndromes.
Documentation pitfalls
Always identify the stressor. Don't use this code when another disorder better fits.
References
- American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.).