Toxic effect of homologues of benzene, assault, sequela

This code signifies the long-term or residual effects resulting from a poisoning or adverse reaction to benzene homologues (e.g., toluene, xylene) that occurred due to an intentional act of harm by another person. These sequelae can manifest as chronic organ damage, neurological deficits, or other persistent health issues directly attributable to the past toxic exposure.

Apply this code when documenting a patient presenting with a current health condition that is a direct consequence of a past toxic exposure to benzene homologues, and the original exposure was determined to be an assault. This code is used for the late effects of such an event, not for the acute poisoning itself.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic kidney disease, peripheral neuropathy).
• Ensure documentation clearly links the current condition to a past toxic exposure and specifies the assault as the external cause.
• Do not use this code for acute poisoning or for toxic effects from accidental or self-harm exposures.