MS-DRG 949Medical

Aftercare with CC/MCC

Major Diagnostic Category 23·Grouped by diagnosis·FY 2027

MS-DRG 949 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 23 (MDC 23) with a Complication or Comorbidity (CC). It maps to 8,604 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 1.1230 with a geometric mean length of stay of 4.1 days and an arithmetic mean of 6.4 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:: 1.1230 (payment multiplier vs. the average case (1.0))
Geometric mean stay:: 4.1 days (used for transfer payments)
Average stay:: 6.4 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
559	Aftercare, Musculoskeletal System and Connective Tissue with MCC	1.8088	4.9 days
560	Aftercare, Musculoskeletal System and Connective Tissue with CC	1.1238	3.8 days
561	Aftercare, Musculoskeletal System and Connective Tissue without CC/MCC	0.8258	3 days
949	Aftercare with CC/MCC (this page)	1.1230	4.1 days
950	Aftercare without CC/MCC	0.7664	3.3 days

Diagnosis codes (8,604)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 949. 100% of the codes listed are billable.

Showing the first 1,000 of 8,604 codes. Use search to find a specific code.