MS-DRG 946Medical

Rehabilitation without CC/MCC

Major Diagnostic Category 23·Grouped by diagnosis·FY 2027

MS-DRG 946 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 23 (MDC 23) without a significant Complication or Comorbidity. It maps to 2 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 1.1051 with a geometric mean length of stay of 4 days and an arithmetic mean of 5.3 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:: 1.1051 (payment multiplier vs. the average case (1.0))
Geometric mean stay:: 4 days (used for transfer payments)
Average stay:: 5.3 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
945	Rehabilitation with CC/MCC	1.4749	5.7 days
946	Rehabilitation without CC/MCC (this page)	1.1051	4 days

Diagnosis codes (2)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 946. 100% of the codes listed are billable.

Procedure codes (1,258)

ICD-10-PCS procedures that can group a stay to DRG 946.

Showing the first 1,000 of 1,258 codes. Use search to find a specific code.