Poisn by immune chkpt inhibtr/immunostim drugs, undet, init

This code signifies an adverse event where a patient has been poisoned by immune checkpoint inhibitors or other immunostimulant medications. The specific intent of the poisoning is undetermined, meaning it's not definitively accidental, intentional self-harm, or assault. This initial encounter code indicates the patient is receiving active treatment for the acute effects of the poisoning.

Apply this code when a patient presents with signs and symptoms of poisoning from immune checkpoint inhibitors or immunostimulant drugs, and the circumstances surrounding the exposure are not yet clear. This is appropriate for the initial visit where the poisoning is being diagnosed and managed. Use this code when the patient is actively receiving treatment for the acute effects of the poisoning.

• Always sequence this code first as the principal diagnosis when it is the reason for the encounter.
• Requires an additional code to specify the drug involved (e.g., from T38.X- category) to provide full specificity.
• Do not use if the intent of the poisoning (accidental, intentional self-harm, assault) is known; use the appropriate intent code instead.