MS-DRG 595Medical

Major Skin Disorders with MCC

Major Diagnostic Category 09·Grouped by diagnosis·FY 2027

MS-DRG 595 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 09 (MDC 09) with a Major Complication or Comorbidity (MCC). It maps to 115 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 2.0239 with a geometric mean length of stay of 5.4 days and an arithmetic mean of 7.5 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:: 2.0239 (payment multiplier vs. the average case (1.0))
Geometric mean stay:: 5.4 days (used for transfer payments)
Average stay:: 7.5 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.

DRG	Title	Relative weight	Mean stay
595	Major Skin Disorders with MCC (this page)	2.0239	5.4 days
596	Major Skin Disorders without MCC	1.1071	3.5 days

Diagnosis codes (115)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 595. 100% of the codes listed are billable.