Poisoning by methylphenidate, intentional self-harm, subs

This code signifies a patient presenting for follow-up care related to an intentional overdose of methylphenidate. The initial self-harm event has already occurred, and the patient is now being seen for ongoing management, complications, or recovery. This indicates a deliberate act of self-poisoning with this specific stimulant medication.

Apply this code when documenting subsequent encounters for patients who previously attempted suicide or intentionally harmed themselves by ingesting an excessive amount of methylphenidate. This includes visits for psychiatric evaluation, management of lingering physical effects, or follow-up after initial acute treatment. It is appropriate for any encounter after the initial acute phase of the poisoning.

• Ensure the documentation clearly states "subsequent encounter" or similar language indicating follow-up care.
• Verify that methylphenidate was the specific substance involved in the intentional self-harm.
• Always sequence this code after any codes for the specific physical or mental health conditions resulting from the poisoning.