Toxic effect of contact w sea anemone, accidental, sequela

This code signifies a lasting health problem or complication resulting from an accidental, unintentional exposure to a sea anemone. It indicates that the acute phase of the envenomation has passed, and the patient is now experiencing a chronic or residual effect.

Apply this code when documenting a patient presenting with a persistent symptom, such as chronic pain, scarring, nerve damage, or a recurring rash, that is directly attributable to a past, accidental sea anemone sting. This code is appropriate for follow-up encounters addressing these long-term sequelae.

• Always use this code as a secondary diagnosis, following a code for the specific sequela (e.g., chronic dermatitis, neuropathic pain).
• Ensure documentation clearly links the current condition to the prior sea anemone exposure and specifies its accidental nature.
• Do not use for acute envenomation; that would require an acute encounter code from the T63.63- series.