Each hospital's case mix index_is an average of the DRG weights handled for a specific period of time.
What does the case mix index means?
The Case Mix Index (CMI) is the mean relative DRG weight of a hospital's inpatient discharges, and evaluated by summing the Medicare Severity-Diagnosis Related Group (MS-DRG) weight for each discharge number and dividing the total by the number of discharges.
What do DRG mean?
DRG stands for diagnosis-related group. Medicare's DRG system is called the Medicare severity diagnosis-related group, or MS-DRG, which is used to determine hospital payments under the inpatient prospective payment system (IPPS).
How is DRG calculated?
Determine whether or not there was a surgical procedure. Determine if there were any secondary diagnoses that would be considered comorbidities or could cause complications. A comorbid condition is an additional medical problem happening at the same time as the principal medical problem.
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