MS-DRG 138Surgical

Mouth Procedures without CC/MCC

Major Diagnostic Category 03·Grouped by procedure·FY 2027

MS-DRG 138 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 03 (MDC 03) without a significant Complication or Comorbidity. For FY 2027 it carries a relative weight of 0.9188 with a geometric mean length of stay of 1.7 days and an arithmetic mean of 2.2 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:
0.9188 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
1.7 days (used for transfer payments)
Average stay:
2.2 days (arithmetic mean)
Post-acute transfer policy:
No (not subject to it)

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
137Mouth Procedures with CC/MCC1.34393.1 days
138Mouth Procedures without CC/MCC (this page)0.91881.7 days

Procedure codes (358)

ICD-10-PCS procedures that can group a stay to DRG 138.