ICD-9 Diagnosis Code 300.21

Agoraphobia w panic dis

Diagnosis Code 300.21

ICD-9: 300.21
Short Description: Agoraphobia w panic dis
Long Description: Agoraphobia with panic disorder
This is the 2014 version of the ICD-9-CM diagnosis code 300.21

Code Classification
  • Mental disorders
    • Neurotic disorders, personality disorders, and other nonpsychotic mental disorders (300-316)
      • 300 Neurotic disorders

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • F40.01 - Agoraphobia with panic disorder

Index of Diseases and Injuries
References found for the code 300.21 in the Index of Diseases and Injuries:

Information for Patients

Panic Disorder

Panic disorder is a type of anxiety disorder. It causes panic attacks, which are sudden feelings of terror when there is no real danger. You may feel as if you are losing control. You may also have physical symptoms, such as

  • Fast heartbeat
  • Chest or stomach pain
  • Breathing difficulty
  • Weakness or dizziness
  • Sweating
  • Feeling hot or a cold chill
  • Tingly or numb hands

Panic attacks can happen anytime, anywhere, and without warning. You may live in fear of another attack and may avoid places where you have had an attack. For some people, fear takes over their lives and they cannot leave their homes.

Panic disorder is more common in women than men. It usually starts when people are young adults. Sometimes it starts when a person is under a lot of stress. Most people get better with treatment. Therapy can show you how to recognize and change your thinking patterns before they lead to panic. Medicines can also help.

NIH: National Institute of Mental Health

  • Panic disorder
  • Panic disorder with agoraphobia

[Read More]


A phobia is a type of anxiety disorder. It is a strong, irrational fear of something that poses little or no real danger.

There are many specific phobias. Acrophobia is a fear of heights. Agoraphobia is a fear of public places, and claustrophobia is a fear of closed-in places. If you become anxious and extremely self-conscious in everyday social situations, you could have a social phobia. Other common phobias involve tunnels, highway driving, water, flying, animals and blood.

People with phobias try to avoid what they are afraid of. If they cannot, they may experience

  • Panic and fear
  • Rapid heartbeat
  • Shortness of breath
  • Trembling
  • A strong desire to get away

Phobias usually start in children or teens, and continue into adulthood. The causes of specific phobias are not known, but they sometimes run in families.

Treatment helps most people with phobias. Options include medicines, therapy or both.

NIH: National Institute of Mental Health

  • Panic disorder with agoraphobia
  • Phobia - simple/specific
  • Social phobia

[Read More]
Previous Code
Previous Code 300.20
Next Code
300.22 Next Code