The SUD medical abbreviation stands for substance use disorder, a health condition in which repeated use of alcohol, a medicine or another drug keeps going despite harm to a person's health, work, relationships or safety. Clinicians treat it as a medical diagnosis, the same way they treat diabetes or asthma, and the term was chosen to be neutral and free of blame.
You may see SUD on a problem list, a referral, a prenatal record or a behavioral health note. The note usually adds which substance is involved and how severe the condition is. Related pages cover AUD, the alcohol form of the condition, and UDS, the urine drug screen that sometimes appears in the same chart.
At a glance
Stands for
Substance use disorderUsed in
Primary care, psychiatry, addiction medicine, obstetrics, emergency careSeverity levels
Mild, moderate or severe, based on how many diagnostic criteria are metPlural or forms
SUDs for several disorders; SUDS can also be a different termSpecific types
Alcohol (AUD), opioid (OUD), stimulant, cannabis and othersDo not confuse with
SUDS, the Subjective Units of Distress Scale, or sudden unexplained death syndrome
What the SUD medical abbreviation describes
Substance use disorder is the umbrella term clinicians use when the use of a substance has grown into a pattern that is hard to control and causes problems. The diagnosis rests on a list of eleven criteria in the standard psychiatric manual used in the United States. They fall into four broad groups: trouble controlling use, effects on daily life and relationships, using in risky situations, and body changes such as tolerance or withdrawal.
Older notes may say substance abuse or substance dependence. Those labels were folded into the single term substance use disorder, and many clinicians now avoid words like abuser or addict in records because they can carry stigma. Person first wording, such as a patient with SUD, is the usual style today.
How severity is written
A note rarely stops at the three letters. It usually names the substance and gives a severity level that reflects how many of the eleven criteria apply in a twelve month period.
| Severity | Criteria met | Example wording |
|---|---|---|
| Mild | 2 or 3 | Cannabis use disorder, mild |
| Moderate | 4 or 5 | SUD, stimulant type, moderate |
| Severe | 6 or more | Opioid use disorder, severe |
Notes may also add a course word. Early remission and sustained remission mark stretches without meeting criteria, and on maintenance therapy means the person is taking a prescribed treatment medicine.
Reading SUD in a chart line
Here is how a short problem list entry breaks down.
Problem list: "SUD, opioid type, moderate, in early remission." This says the person has a substance use disorder involving opioids, that four or five criteria applied at the time of diagnosis, and that the criteria have not been met for a recent stretch of months. It records history and status, not a judgment about the person.
In an emergency department note you may instead see a line such as hx of SUD, last use reported 2 days ago. Hx means history, so the clinician is noting background information that may matter for pain control, withdrawal monitoring or medicine choices.
SUD in pregnancy care
People searching for the SUD medical abbreviation in pregnancy usually saw it on a prenatal record. Obstetric teams screen everyone for alcohol, tobacco and drug use at early visits because some substances can affect the pregnancy and the newborn. When a disorder is present, the record may say SUD in pregnancy or name the type, such as OUD in pregnancy.
The goal of writing it down is coordinated care: linking the person with treatment, planning pain relief for delivery and preparing the newborn team to watch for withdrawal signs. Treatment medicines are often continued during pregnancy under medical guidance rather than stopped suddenly. Questions about a specific plan belong with the obstetric clinician.
Other meanings of SUD and SUDS
Substance use disorder is by far the most common meaning. A few look alike terms can appear in other settings, and the surrounding words settle which one is meant.
| Abbreviation | Meaning | Where it shows up |
|---|---|---|
| SUD | Substance use disorder | Medical and behavioral health records |
| SUDS | Subjective Units of Distress Scale, a 0 to 100 self rating of distress | Therapy notes, especially exposure therapy |
| SUDS | Sudden unexplained death syndrome | Cardiology and forensic reports |
| SUID | Sudden unexpected infant death | Pediatric and public health reports |
A lowercase final s, as in SUDs, just signals more than one disorder.
Questions to bring to a clinician
If SUD appears in your own record or a family member's, it is reasonable to ask what it is based on and how it affects the care plan.
- Which substance does the diagnosis refer to, and what severity was recorded?
- Is the entry current, or does it describe a past period?
- What treatment options are available, including counseling and medicines?
- Who can see this part of my record?
This page explains a chart term in general. A doctor, nurse or counselor who knows your history is the right person to discuss diagnosis, privacy and treatment choices.
Frequently asked questions
What does SUD mean in medical terms?
SUD means substance use disorder. It is a diagnosis for a pattern of alcohol or drug use that continues despite causing problems, graded as mild, moderate or severe.
What does SUDS mean in a medical or therapy note?
SUDS can be the plural of SUD, but in therapy notes it usually means the Subjective Units of Distress Scale, a 0 to 100 rating of how upset a person feels. In a cardiology or forensic report, SUDS can mean sudden unexplained death syndrome.
Is SUD the same as addiction?
They overlap. Addiction is an everyday word, while substance use disorder is the formal diagnosis with defined criteria. Severe SUD is close to what most people mean by addiction.
Why is SUD written in a pregnancy record?
Prenatal teams screen for substance use so they can offer treatment and plan care for both the pregnant person and the baby. The entry helps the delivery and newborn teams prepare.
Is OUD a type of SUD?
Yes. OUD, opioid use disorder, is one specific substance use disorder. AUD, alcohol use disorder, is another.