Toxic effect of coral snake venom, undetermined, sequela

This code signifies a long-term or late-developing health problem resulting from a coral snake envenomation where the intent (accidental, intentional self-harm, assault, or undetermined) of the poisoning is not documented. These sequelae can manifest as chronic neurological deficits, tissue damage, or other persistent medical conditions directly attributable to the venom's toxic effects.

Apply this code when a patient presents with a residual condition or complication that is a direct consequence of a past coral snake bite, and the original encounter's documentation did not specify the intent of the exposure. This is used for follow-up care of chronic issues, not for the initial acute envenomation.

• This code is exclusively for sequelae, meaning conditions that arise as a direct result of a previous toxic effect.
• Only use this code when the intent of the poisoning is explicitly documented as "undetermined" or cannot be ascertained from the medical record.
• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic neuropathy, tissue necrosis).