Toxic effect of venom of arthropod, accidental, sequela

This code signifies a long-term or late-appearing health problem resulting from an accidental exposure to venom from an arthropod other than a spider, scorpion, or insect. The initial acute effects of the envenomation have resolved, and the patient is now experiencing a residual condition directly attributable to that past event.

Apply this code when documenting a sequela (e.g., chronic pain, neurological deficit, tissue damage, or scarring) that is a direct consequence of an unintentional envenomation by an unspecified or "other" arthropod. This code is appropriate for follow-up encounters addressing these persistent effects, not the initial acute injury.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past accidental "other arthropod" envenomation.
• Distinguish from acute toxic effects (which would use an A, D, or initial encounter Suffix) and intentional exposures.