Toxic effect of glycols, assault, subsequent encounter

This code signifies a toxic reaction to glycols, such as ethylene glycol or propylene glycol, that occurred as a result of an intentional act of harm by another person. The "subsequent encounter" indicates that the patient is receiving follow-up care for the sequelae of the initial poisoning, after the acute phase of treatment has concluded.

This code is appropriate for documenting ongoing treatment, monitoring, or management of complications arising from a glycol poisoning that was inflicted upon the patient. This includes scenarios where the patient is seen for kidney damage, neurological deficits, or other long-term effects stemming from the assault. It should be used after the initial acute care for the poisoning has been rendered.

• Always assign an external cause code (e.g., Y05.-) to fully describe the circumstances of the assault.
• Ensure documentation clearly supports the "subsequent encounter" designation, indicating ongoing care rather than initial treatment.
• Distinguish from accidental or intentional self-harm poisonings, which would use different seventh characters and external cause codes.