Toxic effect of unsp seafood, intentional self-harm, subs

This code signifies a patient presenting for follow-up care after intentionally self-poisoning with an unspecified type of seafood. The initial acute phase of the toxic effect has passed, and the patient is now receiving ongoing management for the sequelae or for psychiatric evaluation related to the self-harm attempt.

Apply this code for subsequent encounters when a patient is being treated for complications, ongoing symptoms, or psychological support following a deliberate act of self-poisoning using seafood. This includes follow-up appointments with gastroenterologists, neurologists, or mental health professionals after the initial emergency treatment.

• Ensure documentation clearly indicates "subsequent encounter" and intentional self-harm.
• Always pair this code with an external cause code (X60-X84) to specify the intent and mechanism.
• Do not use for initial acute care; reserve for follow-up visits after the acute phase.