Poisoning by antimycobac drugs, accidental, subs

This code signifies an unintentional overdose or adverse reaction to antimycobacterial medications, such as those used to treat tuberculosis or leprosy, occurring during a follow-up visit or ongoing treatment. The patient is experiencing the effects of the poisoning, but it is not the initial presentation.

Apply this code when a patient presents for continued management of symptoms or complications arising from an accidental poisoning by antimycobacterial drugs. This would include scenarios like follow-up appointments for liver damage, neurological effects, or other sequelae of the poisoning after the initial acute phase.

• Requires an additional code to identify the specific antimycobacterial drug (e.g., from categories T37.1-T37.9).
• The "D" seventh character indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Distinguish from initial encounters ("A") or sequela ("S") based on the patient's current stage of care for the poisoning.