Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes F01-F99 – Mental, Behavioral and Neurodevelopmental disorders (F01-F99) > 2024 ICD-10-CM Codes F40-F48 – Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48) > 2024 ICD-10-CM Codes F43 – Reaction to severe stress, and adjustment disorders (F43) > 2024 ICD-10-CM Codes F43.1 – Post-traumatic stress disorder (PTSD)