DRG 863
Medical DRGPostoperative and Post-Traumatic Infections without MCC
What is MS-DRG 863?
MS-DRG 863 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 18 (MDC 18) without a significant Complication or Comorbidity. It maps to 7 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.9979 with a geometric mean length of stay of 3.3 days and an arithmetic mean of 4.1 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
Related MS-DRGs in This Severity Group
The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.
| DRG | Title | Rel. Weight | GMLOS |
|---|---|---|---|
| 862 | Postoperative and Post-Traumatic Infections with MCC | 1.8237 | 5 days |
| 863 | Postoperative and Post-Traumatic Infections without MCCThis page | 0.9979 | 3.3 days |
Linked ICD-10-CM Diagnosis Mappings
- K68.11
Postprocedural retroperitoneal abscess
BillableChapter 11 - T81.40XA
Infection following a procedure, unspecified, initial encounter
BillableChapter 19 - T81.41XA
Infection following a procedure, superficial incisional surgical site, initial encounter
BillableChapter 19 - T81.42XA
Infection following a procedure, deep incisional surgical site, initial encounter
BillableChapter 19 - T81.43XA
Infection following a procedure, organ and space surgical site, initial encounter
BillableChapter 19 - T81.44XA
Sepsis following a procedure, initial encounter
BillableChapter 19 - T81.49XA
Infection following a procedure, other surgical site, initial encounter
BillableChapter 19