T51-T65: Toxic effects of substances chiefly nonmedicinal as to source

T61: Toxic effect of noxious substances eaten as seafood

The group of conditions indicated by T61, titled "Toxic effect of noxious substances eaten as seafood", refers to illnesses that result from consuming seafood contaminated by harmful substances. Typical causes of seafood toxicity include toxins produced by certain marine algae, as well as bacteria, parasites, or pollutants present in the seafood at the time of ingestion. Disease transmission is primarily through ingestion of tainted seafood. Symptoms of seafood toxicity can vary widely based on the type of toxin ingested, but may commonly include gastrointestinal problems such as nausea, vomiting, and diarrhoea. More severe cases may present neurological symptoms like tingling, numbness, dizziness, and confusion. Progression of these conditions depends on factors such as the specific toxin involved and individual health status, but they may potentially result in serious health issues impacting multiple body systems.