Ciguatera fish poisoning, accidental, sequela

This code signifies the long-term or residual effects of ciguatera fish poisoning that occurred due to an accidental or unintentional exposure. Ciguatera is a foodborne illness caused by consuming fish contaminated with ciguatoxins, leading to a variety of neurological, gastrointestinal, and cardiovascular symptoms. "Sequela" indicates that the acute phase of the poisoning has passed, but the patient continues to experience lasting health problems directly attributable to the prior intoxication.

Use this code when documenting a patient presenting with chronic or persistent symptoms, such as neuropathic pain, fatigue, or paresthesias, that are a direct consequence of a past, accidental ciguatera fish poisoning event. This code is appropriate for follow-up visits or ongoing management of these long-term complications. It should be applied when the initial acute poisoning has resolved, but its lasting impact remains.

• Ensure documentation clearly links the current symptoms to a prior ciguatera poisoning event.
• This code is for the sequela (late effects), not the acute poisoning itself.
• The "S" in the 7th character indicates sequela; do not use for initial or subsequent encounters for the acute phase.