Toxic effect of benzene, assault, subsequent encounter

This code signifies a harmful physiological response resulting from exposure to benzene, specifically when the exposure was intentionally inflicted by another person. It indicates that the patient is receiving follow-up care for the toxic effects after the initial treatment phase.

Apply this code for patients presenting for ongoing management, monitoring, or treatment of complications arising from benzene poisoning that occurred as a result of an assault. This includes situations where the patient is seen for rehabilitation, long-term health issues, or further diagnostic work-up related to the initial toxic exposure.

• Ensure documentation clearly specifies benzene as the toxic agent and confirms the assault as the external cause.
• This "D" encounter code is used after the patient has received active treatment for the acute phase of the poisoning.
• Always sequence this code after the primary diagnosis describing the specific manifestation of the toxic effect.