Toxic effect of contact w sea anemone, undetermined, sequela

This code signifies a long-term or late-developing health problem resulting from a past toxic exposure to a sea anemone, where the intent of the exposure (accidental vs. intentional) is unknown. These sequelae can manifest as chronic skin conditions, persistent neurological symptoms, or other lasting systemic effects.

Apply this code when documenting a current condition that is a direct consequence of a sea anemone sting or contact that occurred in the past, and the medical record does not specify whether the contact was accidental or intentional. This is appropriate for follow-up visits addressing chronic issues stemming from such an exposure.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic dermatitis).
• Ensure documentation clearly links the current condition to a past sea anemone exposure.
• Only use the "S" (sequela) seventh character for conditions that are residual effects, not acute toxic reactions.