MS-DRG 923Medical

Other Injury, Poisoning and Toxic Effect Diagnoses without MCC

Major Diagnostic Category 21·Grouped by diagnosis·FY 2027

MS-DRG 923 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 21 (MDC 21) without a significant Complication or Comorbidity. It maps to 2,446 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 0.9973 with a geometric mean length of stay of 2.9 days and an arithmetic mean of 4.5 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:: 0.9973 (payment multiplier vs. the average case (1.0))
Geometric mean stay:: 2.9 days (used for transfer payments)
Average stay:: 4.5 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
922	Other Injury, Poisoning and Toxic Effect Diagnoses with MCC	1.6238	3.9 days
923	Other Injury, Poisoning and Toxic Effect Diagnoses without MCC (this page)	0.9973	2.9 days

Diagnosis codes (2,446)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 923. 100% of the codes listed are billable.

Showing the first 1,000 of 2,446 codes. Use search to find a specific code.