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Costs associated with inpatient stays constitute the largest single component of healthcare spending. Healthcare Cost and Utilization Project (HCUP) data show hospital costs by payer for the five most expensive inpatient conditions.

Total hospital costs in 2011 by condition and cost per payer (in billions):

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Septicemia

• $20.3 billion
• Medicare: 62% ($12.7 billion)
• Medicaid: 13% ($2.7 billion)
• Private Insurance: 18% ($3.7 billion)
• Uninsured: 4% (less than $1.0 billion)

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Osteoarthritis

• $14.8 billion
• Medicare: 54% ($8.0 billion)
• Medicaid: 3% (less than $1.0 billion)
• Private Insurance: 39% ($5.7 billion)
• Uninsured: Less than 1% (less than $1.0 billion)

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Complication of device, implant or graft

• $12.9 billion
• Medicare: 58% ($7.5 billion)
• Medicaid: 11% ($1.4 billion)
• Private Insurance: 25% ($3.2 billion)
• Uninsured: 2% (less than $1.0 billion)

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Liveborn (newborn)

• $12.4 billion
• Medicare: Less than 1% (less than $1.0 billion)
• Medicaid: 48% ($5.9 billion)
• Private Insurance: 47% ($5.8 billion)
• Uninsured: 2% (less than $1.0 billion)

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Acute Myocardial Infarction

• $11.5 billion
• Medicare: 55% ($6.3 billion)
• Medicaid: 7% (less than $1.0 billion)
• Private Insurance: 28% ($3.2 billion)
• Uninsured: 7% (less than $1.0 billion)

Sources: HCUP Statistical Brief #160 (http://www.hcup-us.ahrq.gov/reports/statbriefs/statbriefs.jsp) and HCUPnet (https://datatools.ahrq.gov/hcupnet).

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(Department of Health and Human Services and Agency for Healthcare Research and Quality logo)