MS-DRG 331Surgical

Major Small and Large Bowel Procedures without CC/MCC

Major Diagnostic Category 06·Grouped by procedure·FY 2027

MS-DRG 331 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 06 (MDC 06) without a significant Complication or Comorbidity. For FY 2027 it carries a relative weight of 1.7465 with a geometric mean length of stay of 2.6 days and an arithmetic mean of 3.1 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

FY 2027 payment data

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

Relative weight:: 1.7465 (payment multiplier vs. the average case (1.0))
Geometric mean stay:: 2.6 days (used for transfer payments)
Average stay:: 3.1 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.

DRG	Title	Relative weight	Mean stay
329	Major Small and Large Bowel Procedures with MCC	4.5476	9.1 days
330	Major Small and Large Bowel Procedures with CC	2.4263	4.7 days
331	Major Small and Large Bowel Procedures without CC/MCC (this page)	1.7465	2.6 days

Procedure codes (1,595)

ICD-10-PCS procedures that can group a stay to DRG 331.

Showing the first 1,000 of 1,595 codes. Use search to find a specific code.