Psychiatric Diagnoses that Result in the Most Hospital Admissions

The Agency for Healthcare Research and Quality (AHRQ) estimates that 6.7 percent of all inpatient stays are for psychosis. That equates to about 1.8 million patients with a mental disorder (MD), substance use disorder (SUD), or both conditions. That kind of pairing may be an example of the relationship some disorders – depression and alcoholism, for example – have to one another. The most common MD/SUDs are mood disorders (741,950 stays) and alcohol abuse (335,790 stays). In Virginia, the Substance Abuse and Mental Health Services Administration (SAMHSA) estimates that 3.7 percent of adults annually have a serious mental illness (SMI) and 7.4 percent of people older than 12 are alcohol dependent. The percentages in Virginia are similar to national rates for mental illness and alcohol abuse. Mental and substance abuse disorders have a major global impact, and incur significant social and economic costs. Those conditions are most prevalent in people ages 18-44 when people should experience their most economically productive years. About half of diagnosed patients will spend their lives unemployed, according to SAMHSA. (8/7/2015)

Table 3. Most common mental and substance use disorder diagnoses among adult inpatient stays with a primary mental or substance use disorder diagnosis, 2012

Top five mental disorder diagnoses Rank Number of stays Admitted through ED, %
Mood disorders 1 741,950 52.9
Schizophrenia and other psychotic disorders 2 375,935 57.8
Anxiety disorders 3 36,085 65.1
Adjustment disorders 4 33,250 57.7
Impulse disorders 5 5,660 58.7
Top five substance use disorder diagnoses
Alcohol-related disorders 1 335,790 72.0
Drug-induced mental disorders, specific drug not specified 2 100,740 50.5
Opioid-related disorders 3 90,560 63.1
Cocaine-related disorders 4 7,595 47.3
Hallucinogen-related disorders 5 3,520 84.4
a Abbreviation: ED, emergency department
Note: Primary is defined as first-listed diagnosis or all-listed external cause of injury or poisoning. Excludes maternal stays.
Source: Agency for Healthcare Research and Quality (AHRQ), Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project (HCUP), National Inpatient Sample (NIS), 2012