MS-DRG 558: TENDONITIS, MYOSITIS AND BURSITIS WITHOUT MCC
MS-DRG 558 is tendonitis, myositis and bursitis without mcc, in MDC 08 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 0.8875, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 3.10 days. 1,061 ICD-10-CM principal diagnoses group into MS-DRGs 557–558 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 0.8875
- Geometric mean LOS
- 3.10
- Arithmetic mean LOS
- 3.80
- 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.
Principal diagnoses that group to MS-DRGs 557–558
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 1,061 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 557–558 the case lands in. The 24 most-searched:
- M75.101Unspecified rotator cuff tear or rupture of right shoulder, not specified as traumatic
- M65.4Radial styloid tenosynovitis [de Quervain]
- M75.42Impingement syndrome of left shoulder
- M75.121Complete rotator cuff tear or rupture of right shoulder, not specified as traumatic
- M62.59Muscle wasting and atrophy, not elsewhere classified, multiple sites
- M75.111Incomplete rotator cuff tear or rupture of right shoulder, not specified as traumatic
- M75.41Impingement syndrome of right shoulder
- M77.8Other enthesopathies, not elsewhere classified
- M62.89Other specified disorders of muscle
- M75.01Adhesive capsulitis of right shoulder
- M75.02Adhesive capsulitis of left shoulder
- M75.102Unspecified rotator cuff tear or rupture of left shoulder, not specified as traumatic
- M75.112Incomplete rotator cuff tear or rupture of left shoulder, not specified as traumatic
- M75.122Complete rotator cuff tear or rupture of left shoulder, not specified as traumatic
- M76.821Posterior tibial tendinitis, right leg
- M77.11Lateral epicondylitis, right elbow
- M62.50Muscle wasting and atrophy, not elsewhere classified, unspecified site
- M65.331Trigger finger, right middle finger
- M70.61Trochanteric bursitis, right hip
- M70.62Trochanteric bursitis, left hip
- M72.0Palmar fascial fibromatosis [Dupuytren]
- M75.21Bicipital tendinitis, right shoulder
- M75.22Bicipital tendinitis, left shoulder
- M75.81Other shoulder lesions, right shoulder
1,037 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 558.
| 557 | TENDONITIS, MYOSITIS AND BURSITIS WITH MCC | 1.4890 | +0.6015 |
| 558 | TENDONITIS, MYOSITIS AND BURSITIS WITHOUT MCC | 0.8875 |
All FY2027 MS-DRGs · MDC 08