Postoperative and Post-Traumatic Infections with MCC
Major Diagnostic Category 18·Grouped by diagnosis·FY 2027
MS-DRG 862 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 18 (MDC 18) with a Major Complication or Comorbidity (MCC). It maps to 7 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 1.7904 with a geometric mean length of stay of 4.9 days and an arithmetic mean of 6.5 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
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FY 2027 payment data
From Table 5 of the FY 2027 IPPS Final Rule (CMS).
- Relative weight:
- 1.7904 (payment multiplier vs. the average case (1.0))
- Geometric mean stay:
- 4.9 days (used for transfer payments)
- Average stay:
- 6.5 days (arithmetic mean)
- Post-acute transfer policy:
- Yes (early transfers can be paid less)
Same condition, other severity levels
CMS splits one condition into separate DRGs by how sick the patient is. With MCC pays more than with CC, which pays more than without CC/MCC.
| DRG | Title | Relative weight | Mean stay |
|---|---|---|---|
| 862 | Postoperative and Post-Traumatic Infections with MCC (this page) | 1.7904 | 4.9 days |
| 863 | Postoperative and Post-Traumatic Infections without MCC | 0.9866 | 3.3 days |
Diagnosis codes (7)
As the principal diagnosis, these ICD-10-CM codes can group to DRG 862. 100% of the codes listed are billable.
- K68.11Postprocedural retroperitoneal abscess
- T81.40XAInfection following a procedure, unspecified, 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
- T81.44XASepsis following a procedure, initial encounter
- T81.49XAInfection following a procedure, other surgical site, initial encounter