MS-DRG 023Surgical

Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator

Major Diagnostic Category 01·Grouped by procedure·FY 2027

MS-DRG 023 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 01 (MDC 01) with a Major Complication or Comorbidity (MCC). It maps to 369 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 5.7444 with a geometric mean length of stay of 7.2 days and an arithmetic mean of 10.1 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

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FY 2027 payment data

From Table 5 of the FY 2027 IPPS Final Rule (CMS).

Relative weight:
5.7444 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
7.2 days (used for transfer payments)
Average stay:
10.1 days (arithmetic mean)
Post-acute transfer policy:
Yes (early transfers can be paid less)

Same condition, other severity levels

CMS splits one condition into separate DRGs by how sick the patient is. With MCC pays more than with CC, which pays more than without CC/MCC.

DRGTitleRelative weightMean stay
023Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator (this page)5.74447.2 days
024Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC3.97083.6 days

Procedure codes (1,454)

ICD-10-PCS procedures that can group a stay to DRG 023.

Showing the first 1,000 of 1,454 codes. Use search to find a specific code.

Diagnosis codes (369)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 023. 100% of the codes listed are billable.