F43.89 Other reactions to severe stress
ICD-10-CM · CMS code reference
F43.89 is for a reaction to severe stress that the provider documents as a specific kind with no code of its own in F43. Prolonged grief disorder has its own code, F43.81.
Related codes
F43.21Adjustment disorder with depressed mood ICD-10-CMF43.22Adjustment disorder with anxiety ICD-10-CMF43.23Adjustment disorder with mixed anxiety and depressed mood ICD-10-CMF43.24Adjustment disorder with disturbance of conduct ICD-10-CMF43.25Adjustment disorder with mixed disturbance of emotions and conduct ICD-10-CMF43.29Adjustment disorder with other symptoms ICD-10-CMF43.81Prolonged grief disorder ICD-10-CMF43.9Reaction to severe stress, unspecified ICD-10-CM
Common questions
Is F43.89 a billable code?
Yes. F43.89 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.