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HomeConditionsSubstance Use & AddictionOpioid Use Disorder, Intoxication, and Withdrawal
Mental Health Condition

Opioid Use Disorder, Intoxication, and Withdrawal

To define Opioid Use Disorder, Intoxication, and Withdrawal: A pattern of opioid use causing significant harm or distress, with cravings, tolerance, and withdrawal when stopping.

Overview

Description

Contains: common_reactions_to_diagnosis, what_it_can_look_like_in_real_life

Prevalence

Approximately 2.1 million people in the U.S. have an opioid use disorder; highest prevalence among young adults but affects all age groups.

Age of Onset

Often begins with prescription opioids in late adolescence or early adulthood, though onset can occur at any age.

ICD-10 Code

F11.20

By HeyPsych Contributor
Reviewed by the HeyPsych Medical Review Board
Reviewed by the HeyPsych Medical Review Board
Board-certified psychiatrists and mental health professionals
Medical Review Board
Published: December 13, 2025
Last Updated: August 25, 2026
Last Reviewed: August 25, 2026

What This Is

A clear, short explanation of opioid use disorder and what defines it.

What It Feels Like

First-person experiences and real-life snapshots of living with opioid use disorder.

Real-Life Stories

Detailed stories showing how opioid use disorder unfolds in different people's lives.

Signs and Symptoms

The patterns of intoxication, withdrawal, and problematic use.

Early Warning Signs

Recognizing the early indicators that opioid use may be becoming a problem.

Why It Happens

The biological, psychological, and environmental factors that contribute to opioid use disorder.

How It's Told Apart

Understanding how opioid use disorder is distinguished from other conditions.

Opioid Use Disorder vs. Other Conditions

How opioid use disorder compares to similar conditions and what makes it distinct.

Treatment and Next Steps

Treatment options, when to seek help, and answers to common questions.

This information about mental health conditions is for educational purposes only. If you believe you may be experiencing symptoms of a mental health condition, please consult with a qualified healthcare professional for proper evaluation and diagnosis.

Get Support

Seeking Help for Opioid Use Disorder, Intoxication, and Withdrawal?

If you recognize these symptoms in yourself or a loved one, know that help is available. Mental health conditions are treatable, and connecting with a qualified professional can make a significant difference.
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