Opioid Use Disorder Severity: How Intake Counts Criteria

When someone calls about opioid treatment, one of the first clinical questions is not “how much” but “how many”: how many of the diagnostic criteria for opioid use disorder applied over the past year. That count produces a severity rating of mild, moderate or severe, and it ends up in the medical record, on insurance paperwork and in the treatment plan. Families are often surprised by how the count works and by what it does and does not decide. This guide walks through the process the way an admissions assessment actually runs it, so you can prepare accurate information before the call.

If you would rather talk it through with someone now, call (855) 778-8668.

How Opioid Use Disorder Severity Is Counted

Opioid use disorder is diagnosed using 11 criteria in the DSM-5, the diagnostic manual clinicians use in the United States. The assessor counts how many of the 11 applied at any point in the past 12 months: 2 or 3 criteria is mild, 4 or 5 is moderate, and 6 or more is severe. Tolerance and withdrawal are not counted when a person takes opioids only as prescribed under appropriate medical supervision, which is why someone on a stable pain prescription is not automatically diagnosed with the disorder.

The criteria are the same for heroin, fentanyl, oxycodone, hydrocodone and other opioids. The substance changes the medical risks; it does not change the counting.

The 11 Criteria, Grouped the Way Clinicians Think About Them

Clinicians usually sort the criteria into four groups. Seeing them grouped makes it easier to recall concrete examples from the past year.

• Impaired control: taking opioids in larger amounts or for longer than intended; a persistent wish or unsuccessful attempts to cut down; a great deal of time spent getting, using or recovering; and craving.
• Social impairment: failing to meet major obligations at work, school or home; continuing despite relationship or social problems caused or worsened by use; and giving up or reducing important activities.
• Risky use: repeated use in physically hazardous situations, such as driving; and continuing despite knowing it is causing or worsening a physical or psychological problem.
• Pharmacological criteria: tolerance, and withdrawal (or taking opioids to relieve or avoid withdrawal).

That is 4 + 3 + 2 + 2, or 11 criteria in total. No single criterion is required, and no blood test or urine screen establishes the diagnosis. A drug screen shows recent exposure; the diagnosis comes from the clinical interview.

Why the Same Person Can Get Different Ratings

People are sometimes rated “moderate” at one appointment and “severe” at another. Usually nothing is wrong with either assessment. These are the common reasons:

• The 12-month window: the count covers the whole past year, so a person describing only the current week will under-report criteria that applied six months ago.
• The prescribed-use exclusion: tolerance and withdrawal drop out of the count when opioids were taken only as prescribed, but they count once use goes beyond the prescription.
• Who gives the history: a spouse or parent often remembers missed obligations or withdrawal episodes the person has minimised or forgotten.
• State during the interview: someone who is intoxicated or in active withdrawal may not give a reliable account, so assessors often revisit the history once the person is stable.
• Remission specifiers: “early remission” means no criteria other than craving for at least 3 months but less than 12; “sustained remission” means 12 months or longer.

What the Severity Rating Does Not Decide

A severity rating describes the disorder. It does not, by itself, decide where someone should be treated. Level-of-care decisions use a broader framework. The ASAM Criteria look at six dimensions, including withdrawal risk, medical conditions, emotional and behavioural conditions, readiness, relapse risk and the recovery environment. We explain how those dimensions are scored in our guide to the ASAM six dimensions at rehab admission.

Two people with a “severe” rating can need very different care. One may have a stable home and no other medical issues. The other may be using fentanyl alongside a benzodiazepine or alcohol. Opioid withdrawal on its own is very uncomfortable and carries real risks, including dehydration and a high overdose risk if someone returns to use after tolerance drops. Withdrawal from alcohol or benzodiazepines can cause seizures, so anyone dependent on either one needs medically supervised withdrawal and should not stop abruptly at home.

Why an Accurate Diagnosis Matters for Medication

The diagnosis is the gateway to medications for opioid use disorder. The three FDA-approved options are buprenorphine, methadone and naltrexone. The National Institute on Drug Abuse describes these medications as effective treatment, and they work best combined with counselling and support. Each one has its own timing rules. Buprenorphine started too soon after a full opioid such as fentanyl can bring on sudden withdrawal. Naltrexone requires a period without opioids first. If buprenorphine is part of your plan, our page on Suboxone treatment in Los Angeles explains how it fits into residential care.

The severity rating can also show up in insurance review. Reviewers read the clinical record, so a well-documented history supports the request better than a single number does.

What We Notice in Admissions Conversations

In admissions calls at a small residence like ours, the same gaps come up again and again. Most people describe their worst recent week, not the past 12 months. People with a pain prescription often fear that being honest will get them “labelled”, without realising the exclusion for tolerance and withdrawal exists for exactly their situation. It applies only to those two criteria, though, not to the other nine. And the detail that changes a plan most often is not the opioid at all. It is a benzodiazepine, alcohol or a stimulant used alongside it, mentioned almost in passing near the end of the call.

Co-occurring conditions are assessed alongside the substance use, not instead of it. Depression, anxiety, PTSD and trauma, chronic pain and insomnia are common in people with opioid use disorder. For someone being treated for opioid use, these are part of a dual diagnosis treatment plan. They are not a separate admission.

Before the Assessment: A 15-Minute Preparation Step

You can do this today, either yourself or with a family member. On one sheet of paper, write a 12-month timeline that covers:

• Which opioids were used, by what route, and roughly how much on a typical day now compared with a year ago.
• The date and time of the most recent use.
• Any attempts to cut down or stop, and what happened.
• Any overdose, naloxone use, emergency visit or withdrawal episode, with approximate dates.
• Every other substance, including alcohol, benzodiazepines, sleep medications and stimulants, plus all prescribed medications and doses.
• Work, family or legal consequences you can date.

Then, at the end of the assessment, ask one direct question: “Which of the 11 criteria did you count, and what severity and specifiers are in my record?” You are entitled to understand your own diagnosis. Asking also catches errors, such as a criterion counted from a prescribed period, before they carry into the treatment plan.

If Someone Is in Danger Right Now

If someone is unresponsive, breathing slowly or not at all, or has blue or grey lips, call 911 and give naloxone if you have it. The CDC overdose prevention pages explain how to recognise an opioid overdose. For a mental health or suicidal crisis, call or text 988. For free, confidential treatment referrals 24 hours a day, the SAMHSA National Helpline is available at 1-800-662-4357.

Talk With Annandale

Annandale Behavioral Health is a small, six-bed private residence serving the Los Angeles and Pasadena area. We provide residential treatment for adults with substance use disorders, including those with co-occurring mental health conditions. If you are trying to understand an assessment, or you want to know whether residential care is the right level, call (855) 778-8668 to speak with our admissions team.

This article is for educational purposes only and is not medical advice, diagnosis or treatment. A diagnosis of opioid use disorder can only be made by a qualified clinician after an individual assessment. Do not stop or change any prescribed medication without speaking to your prescriber. Withdrawal from alcohol or benzodiazepines can be life-threatening and requires medical supervision.