Toxic effect of venom of spider, self-harm, sequela

This code signifies the long-term consequences or complications arising from a patient intentionally poisoning themselves with venom from a spider other than a black widow or other specifically classified spider. It indicates that the patient deliberately sought to harm themselves using this method, and the current encounter addresses a residual condition directly related to that past event.

Apply this code when documenting a follow-up visit or treatment for a chronic condition, permanent disability, or other lasting effect directly attributable to a past intentional self-inflicted spider venom exposure. This includes scenarios where the initial acute poisoning has resolved, but the patient continues to experience related health issues.

• Requires a seventh character "S" to denote sequela, indicating a late effect of the initial injury.
• Always sequence this code after the primary diagnosis for the specific sequela being treated (e.g., chronic pain, neurological deficit).
• Do not use for the initial acute poisoning event; refer to codes for acute toxic effect with the appropriate intent.