Toxic effect of homologues of benzene, undetermined, init

This code signifies an adverse health effect resulting from exposure to a benzene homologue, such as toluene or xylene, when the intent of the exposure (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is in the acute phase of treatment for this toxic effect.

Apply this code when a patient presents with symptoms of poisoning or adverse reactions to a benzene homologue, and the medical record does not specify whether the exposure was accidental, intentional, or due to assault. This is appropriate for the initial visit or admission for this specific toxic event.

• Always assign an additional code for the specific benzene homologue if known (e.g., T52.3X- for toluene).
• Do not use this code if the intent of the exposure is clearly documented as accidental, intentional self-harm, or assault; instead, select the appropriate intent character.
• The "A" seventh character indicates an initial encounter for active treatment of the toxic effect.