F43.23Adjustment disorder with mixed anxiety and depressed mood

F43.23 is the ICD-10-CM diagnosis code for adjustment disorder with mixed anxiety and depressed mood. 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within F43.2 (adjustment disorders), F43.23 is specifically for adjustment disorder with mixed anxiety and depressed mood. Related codes cover disorder, unspecified (F43.20), disorder with depressed mood (F43.21), disorder with anxiety (F43.22), disorder with disturbance of conduct (F43.24), disorder with mixed disturbance of emotions and conduct (F43.25) and disorder with other symptoms (F43.29).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 882 (Neuroses Except Depressive, relative weight 0.9952), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

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

Before ICD-10, this condition was coded in ICD-9-CM as 309.28 (adjustment disorder with mixed anxiety and depressed mood).