F00-F09: Organic, including symptomatic, mental disorders

Organic mental disorders, as referred to under the classification F00-F09, are a group of conditions characterized by a noteworthy change in thinking, emotional state, or behavior. These changes are typically a direct physiological result of a health condition like a disease, injury, or substance use--hence the term 'organic'. Symptoms may differ considerably, but can often include memory loss, difficulty concentrating, mood swings, or even personality changes. Illness progression also varies, depending on the root cause, and in some cases, these changes may be temporary or reversible. These disorders impact a range of bodily systems as the brain controls and coordinates most functions, meaning potential effects can be wide-reaching, from physical health to social interactions. Regular monitoring is needed as significant functional impairment or stress may occur, considerably impacting individuals' day-to-day lives and activities.