Poisoning by propionic acid derivatives, assault, subs

This code signifies an injury resulting from the intentional administration of propionic acid derivatives, such as ibuprofen or naproxen, by another person with the intent to harm. The "subsequent encounter" indicates that the patient is receiving follow-up care for the sequelae of this poisoning after the initial treatment.

This code is appropriate when documenting ongoing care for a patient who was deliberately poisoned with propionic acid derivatives by another individual. This includes follow-up appointments for monitoring organ function, managing residual symptoms, or addressing complications arising from the initial toxic exposure.

• Ensure documentation clearly specifies the intent of assault and that the substance was a propionic acid derivative.
• Verify that the encounter is for follow-up care, not the initial treatment of the poisoning.
• Always code with an external cause code (X-code) to fully describe the circumstances of the assault.