Panic disorder [episodic paroxysmal anxiety]

This diagnosis code represents a type of anxiety disorder characterized by recurrent, unexpected panic attacks. These attacks involve sudden, intense fear or discomfort that peaks within minutes, accompanied by physical and cognitive symptoms such as palpitations, sweating, trembling, shortness of breath, chest pain, dizziness, derealization, fear of losing control, or fear of dying.

Use this code when documentation clearly indicates a diagnosis of panic disorder without any associated agoraphobia. The patient's medical record should describe spontaneous, unprovoked panic attacks and persistent worry about future attacks or their consequences. This code is appropriate when the panic attacks are not attributable to another mental disorder or substance use.

• Ensure the documentation explicitly rules out agoraphobia; if present, a different code is required.
• Distinguish from other anxiety disorders where panic attacks may occur but are not the primary feature.
• Look for diagnostic criteria such as recurrent unexpected panic attacks and at least one month of persistent concern or worry about additional panic attacks or their consequences.