MS-DRG 863: POSTOPERATIVE AND POST-TRAUMATIC INFECTIONS WITHOUT MCC
MS-DRG 863 is postoperative and post-traumatic infections without mcc, in MDC 18 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 0.9866, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 3.30 days. 7 ICD-10-CM principal diagnoses group into MS-DRGs 862–863 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 0.9866
- Geometric mean LOS
- 3.30
- Arithmetic mean LOS
- 4.10
- 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.
Principal diagnoses that group to MS-DRGs 862–863
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 7 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 862–863 the case lands in. The 7 most-searched:
- T81.49XAInfection following a procedure, other surgical site, initial encounter
- T81.41XAInfection following a procedure, superficial incisional surgical site, initial encounter
- T81.42XAInfection following a procedure, deep incisional surgical site, initial encounter
- T81.43XAInfection following a procedure, organ and space surgical site, initial encounter
- T81.40XAInfection following a procedure, unspecified, initial encounter
- K68.11Postprocedural retroperitoneal abscess
- T81.44XASepsis following a procedure, initial encounter
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 863.
| 862 | POSTOPERATIVE AND POST-TRAUMATIC INFECTIONS WITH MCC | 1.7904 | +0.8038 |
| 863 | POSTOPERATIVE AND POST-TRAUMATIC INFECTIONS WITHOUT MCC | 0.9866 |
All FY2027 MS-DRGs · MDC 18