Poisoning of antimycobacterial antibiotics

This code signifies an adverse reaction or overdose specifically due to antimycobacterial agents, which are medications used to treat tuberculosis and other mycobacterial infections. It represents the toxic effects resulting from the ingestion, administration, or exposure to these drugs.

Use this code when documentation clearly indicates a patient is experiencing poisoning from drugs like isoniazid, rifampin, ethambutol, or pyrazinamide. This applies whether the poisoning is accidental, intentional, or due to therapeutic misadventure. Supporting documentation should detail the specific antimycobacterial agent involved and the resulting toxic manifestations.

• Always code the specific manifestation of the poisoning (e.g., hepatitis, neuropathy) in addition to this code.
• Distinguish from adverse effects occurring during therapeutic use, which would typically be coded differently (e.g., E930.0-E949.9 for therapeutic adverse effects).
• Ensure documentation specifies an antimycobacterial antibiotic; do not use for poisoning by other antibiotic classes.