MS-DRG 027: Craniotomy and Endovascular Intracranial Procedures without CC/MCC
Uncomplicated craniotomy
Typical indications
- Elective tumor resection
- Aneurysm clipping uncomplicated
Common denial patterns
- Medical necessity
- Inpatient vs outpatient
Appeal angles
Document inpatient-level monitoring need + 2-midnight rule.
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. 027 has relative weight 2.5234. 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 027?
Craniotomy and Endovascular Intracranial Procedures without CC/MCC. Uncomplicated craniotomy.
What are typical indications?
Elective tumor resection; Aneurysm clipping uncomplicated.
Why are claims under this DRG denied?
Medical necessity; Inpatient vs outpatient.
How do I appeal?
Document inpatient-level monitoring need + 2-midnight rule.
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