Home / ICD-10-CM / Chapter 5 / F43

F43 Reaction to severe stress, and adjustment disorders

ICD-10-CM category F43 sits in Chapter 5 (Mental, behavioral and neurodevelopmental disorders, F01-F99). It contains 14 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

F43.1 Post-traumatic stress disorder (PTSD)F43.2 Adjustment disordersF43.8 Other reactions to severe stress

Billable codes in F43

CodeDescription
F43.0Acute stress reaction
F43.10Post-traumatic stress disorder, unspecified
F43.11Post-traumatic stress disorder, acute
F43.12Post-traumatic stress disorder, chronic
F43.20Adjustment disorder, unspecified
F43.21Adjustment disorder with depressed mood
F43.22Adjustment disorder with anxiety
F43.23Adjustment disorder with mixed anxiety and depressed mood
F43.24Adjustment disorder with disturbance of conduct
F43.25Adjustment disorder with mixed disturbance of emotions and conduct
F43.29Adjustment disorder with other symptoms
F43.81Prolonged grief disorder
F43.89Other reactions to severe stress
F43.9Reaction to severe stress, unspecified

Search within ICD-10-CM for F43 and related codes

Advertisement