MS-DRG
MS-DRG 946: Rehabilitation without CC/MCC
IRF admission no CC/MCC
DRG
946
MDC
MDC 23: Factors Influencing Health Status
Severity
without CC/MCC
Relative weight
0.9234
Avg LOS
8.5 days
Typical indications
- Rehab orthopedic
Common denial patterns
- IRF medical necessity
Appeal angles
Document 60% rule eligibility.
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. 946 has relative weight 0.9234. 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 946?
Rehabilitation without CC/MCC. IRF admission no CC/MCC.
What are typical indications?
Rehab orthopedic.
Why are claims under this DRG denied?
IRF medical necessity.
How do I appeal?
Document 60% rule eligibility.
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