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