F43.2Adjustment disorders

F43.2 is the ICD-10-CM diagnosis code for adjustment disorders. It belongs to category F43 (reaction to severe stress, and adjustment disorders), block F40-F48 (anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

Within F43 (reaction to severe stress, and adjustment disorders), F43.2 is specifically for adjustment disorders. Related codes cover acute stress reaction (F43.0), post-traumatic stress disorder (PTSD) (F43.1), other reactions to severe stress (F43.8) and reaction to severe stress, unspecified (F43.9).

To report this condition, pick the subcode that matches the documentation: F43.20 (unspecified), F43.21 (mood), F43.22 (anxiety), F43.23 (mood), F43.24 (conduct), F43.25 (conduct) and F43.29 (symptoms).

The conditions in its Excludes2 note aren't part of F43.2, but may be coded alongside it if the patient has both: separation anxiety disorder of childhood (F93.0).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.