Toxic effect of contact w oth jellyfish, accidental, subs

This code signifies a toxic reaction resulting from accidental contact with a jellyfish species other than Portuguese man-of-war. The patient is presenting for follow-up care or treatment of complications arising from the initial sting, rather than the initial injury itself. This includes ongoing symptoms, infection, or delayed allergic reactions.

Use this code for patients returning for subsequent treatment of symptoms like persistent rash, pain, or secondary infections (e.g., cellulitis) following an unintentional sting from an unspecified jellyfish. It is appropriate when the initial encounter for the sting has already been coded, and the current visit addresses ongoing management or complications.

• Ensure the encounter is for follow-up care, not the initial treatment.
• Confirm the jellyfish species is not Portuguese man-of-war (T63.61-).
• Always assign an external cause code (e.g., W59.22XA) to fully describe the circumstances of the injury.