MS-DRG 158Medical

Dental and Oral Diseases with CC

Major Diagnostic Category 03·Grouped by diagnosis·FY 2027

MS-DRG 158 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 03 (MDC 03) with a Complication or Comorbidity (CC). It maps to 75 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 0.9366 with a geometric mean length of stay of 2.8 days and an arithmetic mean of 3.5 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:
0.9366 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
2.8 days (used for transfer payments)
Average stay:
3.5 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
157Dental and Oral Diseases with MCC1.80904.6 days
158Dental and Oral Diseases with CC (this page)0.93662.8 days
159Dental and Oral Diseases without CC/MCC0.68932 days

Diagnosis codes (75)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 158. 100% of the codes listed are billable.