Poisoning by unsp antidepressants, self-harm, init

This code signifies an overdose or adverse reaction to an unspecified antidepressant, where the patient deliberately ingested the substance with the intent to harm themselves. It indicates the initial phase of treatment for such an event, requiring immediate medical attention.

This code is appropriate for documenting the initial presentation and treatment of a patient who has intentionally self-poisoned with an antidepressant, and the specific type of antidepressant is not yet known or documented. It is used when the patient is first seen for this condition in an emergency department, inpatient setting, or initial outpatient visit.

• Ensure documentation clearly states "intentional self-harm" or "suicide attempt" to support the intent.
• Only use this code for the initial encounter; subsequent visits for the same poisoning event will require a different seventh character.
• If the specific antidepressant is identified, a more precise code from the T43.2 series should be used instead.