Poisoning by unspecified topical agent, assault, subs encntr

This code signifies a patient presenting for follow-up care related to an intentional poisoning by an unknown or unclassified topical substance. The initial exposure was non-accidental, indicating an assault.

Apply this code when a patient returns for ongoing treatment, monitoring, or management of complications stemming from a previous poisoning event involving an unspecified topical agent, where the intent was determined to be an assault. This would include situations like wound care for skin irritation, systemic effects, or psychological support after the initial acute phase.

• Always ensure the "D" seventh character is appropriate for a subsequent encounter.
• Confirm documentation clearly states the poisoning was due to an unspecified topical agent and the intent was assault.
• Do not use for initial encounters; a different seventh character would be required.