R45: Symptoms and signs involving emotional state

R45.5: Hostility

Hostility describes an emotion or set of behaviors characterized by unfriendliness or opposition. Often associated with aggression, antagonism, or a defensive stance, hostility can be expressed verbally, nonverbally, or physically. It may be triggered by a range of situations or stimuli based on the individual's current emotional state, stress level, or personal characteristics, and is frequently experienced during conflict situations. It's essential to note that hostility is primarily a psychological condition and does not typically manifest with physical symptoms. However, it can impact an individual's interpersonal relations and overall quality of life. Chronic hostility could potentially lead to complications such as cardiovascular problems, substance use disorders, or mental health disorders, including depression and anxiety.