MS-DRG 862 – Postoperative and Post-Traumatic Infections with MCC
A Medical DRG in MDC 18 (Infectious & Parasitic Diseases, Systemic or Unspecified Sites). Inpatient cases group to DRG 862 when the ICD-10-CM principal diagnosis is one of the 7 codes listed below and a secondary diagnosis on the major complication or comorbidity (MCC) list is present. Its FY 2026 relative weight is 1.8237 with a geometric mean length of stay of 5.0 days.
Severity family
The grouper first assigns the case to MDC 18 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here), then applies the severity split from secondary diagnoses: with MCC → 862; without MCC → 863.
Principal Diagnosis Codes 7 codes · 2 categories
K68 Disorders of retroperitoneum1 code
- K68.11 Postprocedural retroperitoneal abscess
T81 Complications of procedures, not elsewhere classified6 codes
- T81.40XA Infection following a procedure, unspecified, initial encounter
- T81.41XA Infection following a procedure, superficial incisional surgical site, initial encounter
- T81.42XA Infection following a procedure, deep incisional surgical site, initial encounter
- T81.43XA Infection following a procedure, organ and space surgical site, initial encounter
- T81.44XA Sepsis following a procedure, initial encounter
- T81.49XA Infection following a procedure, other surgical site, initial encounter
Procedure Codes
Frequently Asked Questions
What is MS-DRG 862?
MS-DRG 862 (Postoperative and Post-Traumatic Infections with MCC) is a medical DRG in MDC 18 (Infectious & Parasitic Diseases, Systemic or Unspecified Sites). Its FY 2026 relative weight is 1.8237 with a geometric mean length of stay of 5.0 days.
What is the difference between DRG 862, 863?
All 2 share the same base category; the severity of secondary diagnoses separates them: 862 (with MCC), 863 (without MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.
How many diagnosis codes group to DRG 862?
7 ICD-10-CM principal diagnosis codes group to this DRG, spanning 2 three-character categories.
What is the relative weight of DRG 862?
The FY 2026 relative weight of this DRG is 1.8237, meaning reimbursement of roughly 1.82 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
