Claustrophobia

This code signifies an intense, irrational fear of enclosed or confined spaces, leading to significant distress and avoidance behaviors. Individuals with claustrophobia experience anxiety symptoms such as shortness of breath, palpitations, and dizziness when in situations like elevators, crowded rooms, or MRI machines. The fear is disproportionate to the actual danger posed by the situation.

Use this code when a patient presents with a diagnosed phobia specifically related to enclosed spaces. Documentation should clearly indicate the presence of significant anxiety or panic symptoms triggered by confined environments, leading to functional impairment or distress. This diagnosis is typically made by a mental health professional.

• Ensure documentation specifies "claustrophobia" rather than a general anxiety disorder or other specific phobia.
• Do not confuse with agoraphobia (F40.00-F40.02), which is a fear of situations where escape might be difficult or help unavailable, often including open spaces.
• Always sequence this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis if it is a co-occurring condition impacting treatment or management.