T40.902S Poisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, sequela

Name of the Condition

• Poisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, sequela

Summary

This ICD code describes the long-term consequences (sequela) of intentional self-harm resulting from poisoning by unspecified psychodysleptics (hallucinogens). It applies to cases where prior exposure to these substances—known for altering perception, mood, or consciousness—was deliberate and caused harm, with residual effects persisting beyond the acute phase. The code is used when the specific hallucinogen is not identified, and the event is classified as intentional self-harm.

Causes

Intentional self-harm may occur from deliberate ingestion of hallucinogens, often in the context of suicidal ideation or attempts. Adverse effects can arise during recreational or intentional use, such as overdose or toxic reactions. The focus is on self-inflicted harm rather than accidental exposure or therapeutic use. Sequela represent residual effects following the acute poisoning event.

Risk Factors

• History of mental health conditions (e.g., depression, anxiety).
• Prior suicide attempts or ideation.
• Access to hallucinogens.
• Concurrent substance use or misuse.
• Social or environmental stressors.

Symptoms

• Persistent hallucinations, perceptual distortions, or sensory changes.
• Chronic anxiety, paranoia, or disorientation.
• Nausea, vomiting, or dizziness (if ongoing).
• Increased heart rate or blood pressure (if unresolved).
• Altered mental status, including confusion or agitation.
• Potential for self-injurious behavior (if unresolved).

Diagnosis

Diagnosis relies on clinical evaluation, patient history (including substance use and intent), and assessment of persistent symptoms. Documentation should confirm the prior intentional self-harm event and link current symptoms to the original poisoning. Toxicology screening may be used to identify the specific substance involved, if applicable.

Treatment Options

Treatment focuses on managing residual symptoms and preventing recurrence. This may include ongoing mental health support, medication for persistent psychological effects, and monitoring for complications. Rehabilitation or therapy may address underlying risk factors.

Prognosis and Follow-Up

Prognosis depends on the severity of the original poisoning and the effectiveness of treatment. Follow-up care is essential to monitor for persistent symptoms, adjust interventions, and support recovery. Regular assessments help identify and address ongoing risks.

Complications

• Chronic psychological effects (e.g., persistent hallucinations, anxiety).
• Physical complications from the original poisoning (e.g., organ damage).
• Increased risk of future self-harm or substance use.
• Social or functional impairments due to residual symptoms.

Lifestyle & Prevention

• Engage in ongoing mental health therapy to address underlying issues.
• Avoid access to substances that may trigger relapse.
• Build a support network to reduce isolation.
• Follow prescribed treatment plans for any residual conditions.

When to Seek Professional Help

Seek immediate medical attention if new or worsening symptoms occur, such as severe confusion, suicidal thoughts, or physical distress. Ongoing care is recommended for persistent psychological or physical effects.

Tips for Medical Coders

Use this code for sequela of intentional self-harm due to unspecified psychodysleptics (hallucinogens) when the original event is documented as intentional and the specific substance is unknown. Ensure documentation links current symptoms to the prior poisoning and confirms the sequela status.