ICD-10-CM category
F43: Reaction to severe stress, and adjustment disorders
Codes under F43 (Reaction to severe stress, and adjustment disorders). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| F43.0 | Acute stress reaction | ✓ |
| F43.1 | Post-traumatic stress disorder (PTSD) | — |
| F43.2 | Adjustment disorders | — |
| F43.8 | Other reactions to severe stress | — |
| F43.9 | Reaction to severe stress, unspecified | ✓ |
| 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 | ✓ |
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free