MS-DRG 477: BIOPSIES OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITH MCC OR INSERTION OF ANTIBIOTIC-ELUTING BONE VOID FILLER

DRGSurgicalMDC 08

MS-DRG 477 is biopsies of musculoskeletal system and connective tissue with mcc or insertion of antibiotic-eluting bone void filler, in MDC 08 (a surgical DRG), at the with-MCC (major complication or comorbidity) level. Its FY2027 relative weight is 3.4040, so a case here pays more than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 8.10 days.

FY2027 payment factors

Relative weight: 3.4040
Geometric mean LOS: 8.10
Arithmetic mean LOS: 10.10
Post-acute transfer: Yes

This DRG is subject to the post-acute care transfer policy: a discharge to a qualifying setting below the mean length of stay is paid per diem rather than in full.

The severity splits

Same base DRG, split by whether a secondary diagnosis is a CC or MCC. The last column is the weight change from MS-DRG 477.

477	BIOPSIES OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITH MCC OR INSERTION OF ANTIBIOTIC-ELUTING BONE VOID FILLER	3.4040
478	BIOPSIES OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITH CC	2.4337	-0.9703
479	BIOPSIES OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITHOUT CC/MCC	1.8542	-1.5498

All FY2027 MS-DRGs · MDC 08