Toxic effect of unsp seafood, accidental, sequela

This code signifies a long-term or residual health problem resulting from an accidental poisoning by an unknown type of seafood. The initial acute toxic effects have resolved, but the patient continues to experience a lasting consequence directly attributable to the seafood ingestion.

Apply this code when a patient presents with a chronic condition, such as persistent neurological deficits, organ damage, or chronic gastrointestinal issues, that are documented as a sequela of an earlier, unintentional toxic exposure to an unspecified seafood product. This is appropriate when the specific type of seafood causing the toxicity was never identified.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past, accidental, unspecified seafood toxicity.
• The "S" in the 7th character indicates a sequela, meaning the patient is seen for the residual effects, not the acute poisoning.