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

This code signifies a long-term consequence or complication arising from a self-inflicted poisoning by the venom of a snake not otherwise specified. It indicates that the patient intentionally exposed themselves to the snake venom, and the current encounter addresses a residual condition from that past event.

Apply this code when documenting a sequela, such as chronic organ damage, persistent neurological deficits, or ongoing tissue necrosis, that is directly attributable to a previous intentional self-harm incident involving unspecified snake venom. This code is appropriate for follow-up encounters addressing these lasting effects, not the initial acute poisoning.

• Ensure documentation clearly links the current condition as a residual effect of a past intentional snake venom exposure.
• Do not use for acute poisoning; this code is exclusively for sequelae.
• Always sequence this code after the code for the specific sequela being treated.