F43 — Reaction to severe stress, and adjustment disorders
Not billable
Is F43 billable?
No — F43 is a non-billable header code. F43 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 14 billable codes beneath F43.
Billable codes under this header
- F43.0Acute stress reaction
- F43.9Reaction to severe stress, unspecified
- 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 at a glance
| Code | F43 |
|---|---|
| Description | Reaction to severe stress, and adjustment disorders |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here — inherited from Chapter 5
The conditions below are not part of F43, but a patient may have both at the same time. When documentation supports it, F43 and the excluded code may both be reported.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
What codes fall under F43? (5)
How long has F43 existed?
F43 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.