MS-DRG 556: SIGNS AND SYMPTOMS OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITHOUT MCC
MS-DRG 556 is signs and symptoms of musculoskeletal system and connective tissue without mcc, in MDC 08 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 0.8211, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 2.70 days. 247 ICD-10-CM principal diagnoses group into MS-DRGs 555–556 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 0.8211
- Geometric mean LOS
- 2.70
- Arithmetic mean LOS
- 3.30
- Post-acute transfer
- No
Principal diagnoses that group to MS-DRGs 555–556
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 247 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 555–556 the case lands in. The 24 most-searched:
- M25.561Pain in right knee
- M25.511Pain in right shoulder
- M25.562Pain in left knee
- M62.81Muscle weakness (generalized)
- M25.551Pain in right hip
- M25.571Pain in right ankle and joints of right foot
- M79.671Pain in right foot
- R26.2Difficulty in walking, not elsewhere classified
- M25.50Pain in unspecified joint
- M79.672Pain in left foot
- M25.512Pain in left shoulder
- M79.604Pain in right leg
- M79.7Fibromyalgia
- R29.898Other symptoms and signs involving the musculoskeletal system
- M25.552Pain in left hip
- M25.519Pain in unspecified shoulder
- M25.572Pain in left ankle and joints of left foot
- M79.89Other specified soft tissue disorders
- M25.531Pain in right wrist
- M25.532Pain in left wrist
- M25.569Pain in unspecified knee
- M79.18Myalgia, other site
- M79.605Pain in left leg
- M25.521Pain in right elbow
223 more codes group here. Open any code above for its full hierarchy, or check a whole claim in the free DRG calculator.
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 556.
| 555 | SIGNS AND SYMPTOMS OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITH MCC | 1.2913 | +0.4702 |
| 556 | SIGNS AND SYMPTOMS OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITHOUT MCC | 0.8211 |
All FY2027 MS-DRGs · MDC 08