Allergy status to narcotic agent

This code indicates a documented history of an adverse reaction or hypersensitivity to a narcotic medication. It signifies that a patient has experienced an allergic response, such as rash, anaphylaxis, or other immune-mediated reactions, to a drug classified as a narcotic. This is distinct from side effects or intolerance.

Use this code when a patient's medical record clearly documents a past allergic reaction to a narcotic agent. This is crucial for patient safety, informing future prescribing decisions and preventing re-exposure to the offending drug. It should be applied even if the patient is not currently experiencing an allergic reaction.

• Ensure the documentation specifically states "allergy" to a narcotic, not just an adverse effect or intolerance.
• This code is for the status of the allergy, not for an active allergic reaction (which would use codes from T36-T50 with an additional external cause code).
• Always review the patient's medication history and allergy list for clear and specific documentation.