4A85.0Z/T78.4 Drug hypersensitivity of unspecified type



Drug hypersensitivity of unspecified type is an adverse reaction to one or more medications. It is generally caused by an immune response that is triggered when the body is exposed to a particular drug or medication. The exact cause of this reaction is not known, but is thought to be due to an altered immune response that results in an exaggerated response to the drug.


Diagnosis of drug hypersensitivity of unspecified type requires a thorough medical history and physical examination. Blood tests may be ordered to check for any signs of an allergic reaction and a skin prick test may be used to test for a specific drug allergy.

Differential diagnosis

Drug allergies can be confused with other conditions such as anaphylaxis or food allergies. Other conditions that could be associated with drug hypersensitivity include drug-induced liver injury and drug-induced anemia.


Treatment of drug hypersensitivity of unspecified type typically involves stopping the offending medication and treating any symptoms that may be present. In some cases, medications such as antihistamines or corticosteroids may be prescribed to help reduce the symptoms.


Most cases of drug hypersensitivity of unspecified type will resolve without any long-term complications. However, it is important to be aware that the reaction may recur if the same drug is taken again. If a recurrence occurs, it is important to seek medical attention immediately.

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DISCLAIMER: Please note that all explAInations are generated by AI and are not fact checked by a medical professional. ICD ExplAIned do not assume liability for any injuries or harm based on the use of this medical information.