F06.3Mood disorder due to known physiological condition

F06.3 is the ICD-10-CM diagnosis code for mood disorder due to known physiological condition. It belongs to category F06 (other mental disorders due to known physiological condition), block F01-F09 (mental disorders due to known physiological conditions) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

Within F06 (other mental disorders due to known physiological condition), F06.3 is specifically for mood disorder due to known physiological condition. Related codes cover psychotic disorder with hallucinations due to known physiological condition (F06.0), Catatonic disorder due to known physiological condition (F06.1), psychotic disorder with delusions due to known physiological condition (F06.2), anxiety disorder due to known physiological condition (F06.4), mild neurocognitive disorder due to known physiological condition (F06.7) and other specified mental disorders due to known physiological condition (F06.8).

To report this condition, pick the subcode that matches the documentation: F06.30 (unspecified), F06.31 (with depressive features), F06.32 (with major depressive-like episode), F06.33 (with manic features) and F06.34 (with mixed features).

The conditions in its Excludes2 note aren't part of F06.3, but may be coded alongside it if the patient has both: mood disorders due to alcohol and other psychoactive substances (F10-F19 with .14, .24, .94) and mood disorders, not due to known physiological condition or unspecified (F30-F39).

Code first: the underlying physiological condition.

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