T61.92 Toxic effect of unspecified seafood, intentional self-harm

Name of the Condition

• Common Name(s): Intentional Seafood Poisoning, Deliberate Seafood Toxicity
• Technical Terms: Toxic Effect of Unspecified Seafood, Intentional Self-Harm

Summary

This condition describes harmful health effects resulting from the intentional consumption of unspecified seafood with the purpose of self-harm. The toxicity arises from natural or environmental contaminants in the seafood, leading to adverse reactions with deliberate intent. Symptoms typically develop shortly after ingestion and vary based on the specific toxin involved.

Causes

Intentional consumption of toxic seafood or seafood known to cause adverse reactions is the primary cause. Common sources include shellfish contaminated with paralytic shellfish poison, fish with ciguatoxin, or scombroid fish with histamine. Toxins may also originate from algal blooms, bacterial growth, or industrial pollutants in marine environments. The "unspecified" designation indicates the exact type of seafood or toxin is not identified.

Risk Factors

• Prior history of self-harm or suicidal behavior.
• Access to toxic or contaminated seafood.
• Mental health disorders such as depression or anxiety that increase self-harm risk.
• Lack of social support.

Symptoms

• Gastrointestinal: Nausea, vomiting, diarrhea, abdominal pain.
• Neurological: Tingling, numbness, dizziness, paralysis (in severe cases).
• Allergic reactions: Hives, swelling, itching.
• Cardiovascular: Rapid heart rate, low blood pressure.

Diagnosis

Diagnosis involves a patient history focused on intention and seafood consumed, physical examination, laboratory tests to detect specific marine toxins, and mental health assessment to understand the underlying motivation for self-harm. Documentation must clearly indicate intentional self-harm as the cause.

Treatment Options

• Gastric lavage or activated charcoal to reduce toxin absorption.
• Supportive care for symptoms (e.g., antiemetics, IV fluids).
• Mental health intervention and crisis support.
• Monitoring for severe complications like respiratory failure.

Prognosis and Follow-Up

Prognosis depends on the toxin type, dose, and timely treatment. Most cases resolve with supportive care, but severe toxicity may lead to long-term neurological damage or death. Follow-up includes mental health evaluation and safety planning to prevent recurrence.

Complications

• Respiratory failure or paralysis from neurotoxins.
• Severe dehydration from gastrointestinal symptoms.
• Anaphylactic shock from allergic reactions.
• Long-term neurological deficits in severe cases.

Lifestyle & Prevention

• Avoid consuming unknown or suspicious seafood.
• Ensure seafood is sourced from regulated, safe suppliers.
• Seek mental health support if experiencing self-harm thoughts.
• Educate on recognizing and avoiding toxic seafood.

When to Seek Professional Help

Seek immediate medical attention if experiencing severe symptoms (e.g., difficulty breathing, paralysis) or after intentional ingestion of seafood with self-harm intent. Mental health support is critical for underlying issues.

Tips for Medical Coders

Document the intentional self-harm context clearly, including patient statements or clinical assessment of intent. Use this code when the seafood type or specific toxin is unspecified, and the exposure is deliberate. Ensure alignment with clinical documentation to support coding accuracy.