Other fish poisoning, undetermined, sequela

This code signifies a long-term or residual effect stemming from an unspecified type of fish poisoning. It indicates that the acute phase of the poisoning has passed, but the patient continues to experience health problems directly attributable to the past toxic exposure from fish consumption. The specific type of fish or toxin involved remains unknown.

Apply this code when documenting a patient presenting with chronic symptoms or conditions that are definitively linked to a prior episode of fish poisoning, where the initial poisoning event's details (e.g., specific fish, toxin) were not determined. This is appropriate for follow-up encounters addressing persistent neurological, gastrointestinal, or other systemic sequelae.

• This code is for sequelae only; do not use for acute or initial poisoning events.
• The "S" at the end indicates a sequela code, meaning it should be used for complications or conditions that arise as a direct result of a previous illness or injury.
• Always sequence this code after the codes for the specific residual conditions being treated (e.g., chronic neuropathy, persistent gastrointestinal dysfunction).