Toxic effect of contact w oth venomous fish, acc, sequela

This code signifies a long-term or late-occurring health problem resulting from an accidental encounter with venomous fish other than those specifically classified elsewhere. These sequelae can manifest as chronic pain, neurological deficits, tissue damage, or other persistent conditions that arise after the initial acute toxic effect has resolved.

Apply this code when documenting a patient presenting with a residual condition directly attributable to a past, unintentional envenomation by an unspecified venomous fish. This includes scenarios where the initial injury occurred weeks, months, or even years prior, and the current treatment is for the lasting effects.

• Requires a seventh character of 'S' to indicate sequela, meaning the patient is being treated for the residual effects, not the acute poisoning.
• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic pain, scar formation).
• Ensure documentation clearly links the current condition to a past accidental venomous fish exposure.