Poisoning by rifampicins, undetermined, subsequent encounter

This code indicates a poisoning event involving rifampicins where the intent (accidental, intentional self-harm, assault, or undetermined) cannot be established, and the patient is receiving active treatment for the sequelae of the poisoning after the initial encounter. Rifampicins are antibiotics primarily used to treat tuberculosis and some other bacterial infections.

This code is appropriate for subsequent visits when a patient is being managed for adverse effects or complications stemming from rifampicin poisoning, and the medical record does not clearly specify whether the poisoning was accidental, intentional, or due to assault. This includes follow-up appointments, hospital readmissions for ongoing treatment, or rehabilitation related to the poisoning.

• Always assign an additional code for the specific manifestations or adverse effects of the rifampicin poisoning.
• Ensure documentation clearly supports that the intent of the poisoning remains "undetermined" and that this is not the initial encounter for the poisoning.
• Distinguish from adverse effects of therapeutic use, which would be coded differently (T36.6X5-).