ICD-9 Diagnosis Code 292.81

Drug-induced delirium

Diagnosis Code 292.81

ICD-9: 292.81
Short Description: Drug-induced delirium
Long Description: Drug-induced delirium
This is the 2014 version of the ICD-9-CM diagnosis code 292.81

Code Classification
  • Mental disorders
    • Organic psychotic conditions (290-294)
      • 292 Drug psychoses

Information for Medical Professionals

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Index of Diseases and Injuries
References found for the code 292.81 in the Index of Diseases and Injuries:

    • Delirium, delirious 780.09
      • drug-induced 292.81
      • induced by drug 292.81
    • Intoxication
      • delirium
        • drug 292.81
      • drug 292.89
        • with delirium 292.81
    • Psychosis 298.9
      • drug 292.9
        • with
          • delirium 292.81
            • withdrawal 292.0
    • State
      • confusional 298.9
        • acute 293.0
          • drug-induced 292.81

Information for Patients


Delirium is a condition that features rapidly changing mental states. It causes confusion and changes in behavior. Besides falling in and out of consciousness, there may be problems with

  • Attention and awareness
  • Thinking and memory
  • Emotion
  • Muscle control
  • Sleeping and waking

Causes of delirium include medications, poisoning, serious illnesses or infections, and severe pain. It can also be part of some mental illnesses or dementia.

Delirium and dementia have similar symptoms, so it can be hard to tell them apart. They can also occur together. Delirium starts suddenly and can cause hallucinations. The symptoms may get better or worse, and can last for hours or weeks. On the other hand, dementia develops slowly and does not cause hallucinations. The symptoms are stable, and may last for months or years.

Delirium tremens is a serious type of alcohol withdrawal syndrome. It usually happens to people who stop drinking after years of alcohol abuse.

People with delirium often, though not always, make a full recovery after their underlying illness is treated.

  • Delirium
  • Delirium tremens

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Drug Reactions

Also called: Side effects

Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions.

One problem is interactions, which may occur between

  • Two drugs, such as aspirin and blood thinners
  • Drugs and food, such as statins and grapefruit
  • Drugs and supplements, such as gingko and blood thinners
  • Drugs and diseases, such as aspirin and peptic ulcers

Interactions can change the actions of one or both drugs. The drugs might not work, or you could get side effects.

Side effects are unwanted effects caused by the drugs. Most are mild, such as a stomach aches or drowsiness, and go away after you stop taking the drug. Others can be more serious.

Drug allergies are another type of reaction. They can be mild or life-threatening. Skin reactions, such as hives and rashes, are the most common type. Anaphylaxis, a serious allergic reaction, is more rare.

When you start a new prescription or over-the-counter medication, make sure you understand how to take it correctly. Know which other medications and foods you need to avoid. Ask your health care provider or pharmacist if you have questions.

  • Angioedema
  • Drug allergies
  • Drug-induced diarrhea
  • Drug-induced tremor
  • Taking multiple medicines safely

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