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ICD-10-CM 2027

ICD-10 code for Ciguatera fish poisoning

T61.0

Ciguatera fish poisoning

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Poisoning (acute) › ciguatera fish”. Page updated September 29, 2026.

About coding Ciguatera fish poisoning

The ICD-10-CM code for Ciguatera fish poisoning is T61.0 (Ciguatera fish poisoning).

Within T61 (toxic effect of noxious substances eaten as seafood), T61.0 is specifically for Ciguatera fish poisoning. Related codes cover Scombroid fish poisoning (T61.1), other fish and shellfish poisoning (T61.7), toxic effect of other seafood (T61.8) and toxic effect of unspecified seafood (T61.9).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about Ciguatera fish poisoning ICD-10 codes

What is the ICD-10 code for Ciguatera fish poisoning?

T61.0 — Ciguatera fish poisoning (a header code; report a more specific subcode).

Is T61.0 billable?

No. T61.0 is a header code. Report one of its more specific subcodes instead.