Poisoning by cannabis, self-harm, subsequent encounter

This code indicates a patient presenting for follow-up care related to an intentional overdose or self-poisoning with cannabis. The patient deliberately ingested or administered cannabis with the intent to harm themselves, and this encounter is not the initial treatment for the acute event.

Apply this code for subsequent visits, such as psychiatric evaluations, therapy sessions, or medical follow-ups, after the initial acute care for a cannabis self-poisoning has been rendered. It is appropriate when the patient is being managed for the sequelae or ongoing issues stemming from the intentional self-harm event.

• Always assign an additional code for any associated mental health conditions, such as depression or anxiety, if documented.
• Ensure documentation clearly indicates "subsequent encounter" and the intentional nature of the cannabis exposure.
• Do not use for accidental cannabis poisoning or for initial treatment of the acute self-harm event.