Poisn by unsp agents prim act on the resp sys, asslt, subs

This code signifies a patient presenting for follow-up care related to an intentional poisoning by an unknown substance that primarily affects the respiratory system. The poisoning was inflicted by another person with intent to harm.

This code is appropriate for encounters where a patient is receiving ongoing treatment or monitoring for respiratory complications stemming from an assault by an unspecified agent. Examples include follow-up appointments for persistent cough, shortness of breath, or lung damage after such an event.

• Ensure documentation clearly indicates the poisoning was an assault and the encounter is subsequent to the initial treatment.
• Only use when the specific agent causing the respiratory poisoning is unknown or not documented.
• Always sequence this code after any codes for the specific respiratory manifestations or injuries.