Poisn by unsp prim sys and hematolog agent, slf-hrm, init

This code signifies a patient presenting with adverse effects from an unidentified systemic or blood-affecting substance, where the poisoning was deliberately self-inflicted. The "initial encounter" indicates that this is the first time the patient is being seen for this specific poisoning event.

Use this code when a patient has intentionally poisoned themselves with a substance that primarily affects the body's systems or blood, but the specific agent is not yet known or documented. This is appropriate for the initial assessment and treatment of such an overdose.

• Always sequence this code first for the poisoning event, followed by codes for any associated manifestations or complications.
• Avoid using this code if a more specific substance (e.g., opioid, antidepressant) is identified; instead, use the appropriate T-code for that specific agent.
• Ensure documentation clearly supports intentional self-harm and the "initial encounter" for this specific poisoning.