Toxic effect of unspecified seafood, assault, sequela

This code indicates a long-term or residual health problem resulting from a toxic reaction to unspecified seafood, where the exposure was intentionally inflicted by another person. It signifies that the acute phase of the poisoning has passed, but the patient continues to experience related medical issues.

Apply this code for follow-up encounters or when documenting chronic conditions directly attributable to a past seafood poisoning that was an assault. This is appropriate when the patient presents with ongoing symptoms such as neurological deficits, organ damage, or persistent gastrointestinal issues stemming from the original event.

• Always use this code as a secondary diagnosis, following the code for the specific sequela or chronic condition.
• Ensure documentation clearly links the current condition to the past toxic seafood assault.
• Verify that the "S" (sequela) seventh character is appropriate for the long-term nature of the condition.