MS-DRG
MS-DRG 684: Renal Failure without CC/MCC
Uncomplicated AKI
DRG
684
MDC
MDC 11: Kidney/Urinary
Severity
without CC/MCC
Relative weight
0.6842
Avg LOS
2.6 days
Typical indications
- AKI from dehydration
Common denial patterns
- Inpatient vs observation
Appeal angles
Document AKI stage + IV need.
Context: how MS-DRGs work
MS-DRGs bundle hospital inpatient payment into a single amount per admission. Each DRG has a relative weight that multiplies the hospital's base rate to determine payment. 684 has relative weight 0.6842. Major Complication or Comorbidity (MCC) and Complication or Comorbidity (CC) secondary diagnoses can move a case to a higher-paying DRG within the same family.
Frequently asked questions
What is MS-DRG 684?
Renal Failure without CC/MCC. Uncomplicated AKI.
What are typical indications?
AKI from dehydration.
Why are claims under this DRG denied?
Inpatient vs observation.
How do I appeal?
Document AKI stage + IV need.
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