F43

Reaction to severe stress, and adjustment disorders

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 1 never code together

F01-F99chapter

Excludes2

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 1

F01-F99chapter

Includes

disorders of psychological development

Index entries leading here filed at null

No alphabetic index entry points at this code.

Subordinate codes 5

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

Medications 4

41 Bipolar and Related Disorders drugs 10 Feeding and Eating Disorders drugs 65 Sleep Initiation and Maintenance Disorders drugs 19 Trauma and Stressor Related Disorders drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: no
Code set: FY2026
Block: F40-F48
Subordinate: 5

Present FY2024–FY2027.