Patient presents with symptoms consistent with Acute Stress Reaction (also known as Acute Stress Disorder, ASD) following exposure to a traumatic event occurring [Number] days ago. The patient reports experiencing [Specific symptoms e.g., intrusive thoughts, flashbacks, nightmares, dissociative symptoms, negative mood, avoidance behaviors, hyperarousal, sleep disturbances] since the incident.  The traumatic event involved [Nature of traumatic event, ensuring patient confidentiality e.g., a motor vehicle accident, witnessing a violent crime].  The patient's symptoms are causing significant distress and impairment in social, occupational, or other important areas of functioning, meeting DSM-5 criteria for Acute Stress Reaction.  Differential diagnosis includes Adjustment Disorder, Posttraumatic Stress Disorder (PTSD), and other anxiety disorders.  The patient denies any prior history of psychiatric illness.  Current medications include [List medications].  Mental status examination reveals [Observations e.g., patient appearing anxious, tearful, exhibiting psychomotor agitation].  Treatment plan includes crisis intervention, psychological first aid, short-term psychotherapy focusing on stress management techniques, cognitive behavioral therapy (CBT) for trauma, and consideration of pharmacotherapy for symptom management if indicated.  Patient education provided regarding the nature of Acute Stress Reaction, expected course, and available treatment options.  Follow-up scheduled in [Timeframe] to monitor symptom progression and response to treatment.  Referral to [Specialty, e.g., trauma specialist, psychiatrist] may be considered if symptoms persist or worsen.  ICD-10 code F43.0 and CPT codes for evaluation and management (e.g., 99203, 99214) are documented for medical billing and coding purposes.  Prognosis is generally favorable with appropriate intervention.