Toxic effect of venom of brown recluse spider, acc, sequela

This code signifies the long-term or late effects resulting from an accidental brown recluse spider bite. These sequelae can include chronic skin ulcerations, scarring, tissue necrosis requiring reconstructive surgery, or persistent pain that developed after the initial acute phase of the envenomation. It indicates that the acute toxic effects have resolved, but lasting damage or complications remain.

Use this code when documenting a patient presenting for treatment of a condition directly attributable to a brown recluse spider bite that occurred in the past, and the acute phase of the envenomation has passed. This applies to follow-up visits for chronic wounds, scar revisions, or management of permanent tissue damage.

• Always sequence this sequela code first, followed by codes for the specific manifestation(s) of the sequela (e.g., chronic ulcer, scar).
• Do not use this code for acute brown recluse spider envenomation; refer to the acute toxic effect codes in the T63.331- series.
• Ensure documentation clearly links the current condition to a past brown recluse spider bite and specifies its accidental nature.