Poisoning by vitamins, undetermined, initial encounter

This diagnosis code indicates a patient presenting with adverse effects from vitamin intake where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined. The "initial encounter" signifies that the patient is receiving active treatment for the poisoning.

Apply this code when a patient exhibits symptoms of vitamin toxicity, and the medical record does not clearly specify whether the exposure was accidental, intentional, or due to assault. This is appropriate for the first time the patient is seen for this specific poisoning event.

• Always sequence this code first if it is the primary reason for the encounter.
• Requires an additional code to specify the specific vitamin involved (e.g., E67.0 for hypervitaminosis A).
• Do not use if the intent of the poisoning is clearly documented as accidental, intentional, or assault; instead, use the appropriate intent code.