869 MS-DRG: OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITHOUT CC/MCC
MS-DRG 869 groups Medicare inpatient hospital stays for: OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITHOUT CC/MCC. This is a medical MS-DRG. It falls under MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 18 — Infectious and Parasitic Diseases, Systemic or Unspecified Sites |
| DRG Type | Medical |
| Severity Level | None |
| Relative Weight | 0.6787 |
| Relative Weight (10% Cap Applied) | 0.6787 |
| Geometric Mean Length of Stay | 2.4 days |
| Arithmetic Mean Length of Stay | 2.8 days |
| Post-Acute Transfer DRG | Yes |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
400 diagnosis codes can drive assignment here: A01.00, A01.01, A01.02, A01.03, A01.04, A01.05, A01.09, A01.1, A01.2, A01.3, A01.4, A02.20 and 388 more.
From the CMS MS-DRG Definitions Manual (Appendices B and E). Assignment also depends on severity, discharge status and the rest of the claim.
Contextual Map
Every relationship of 869 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Major Diagnostic Category
- MDC 18 — Infectious and Parasitic Diseases, Systemic or Unspecified Sites[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (400)
- A01.00 — Typhoid fever, unspecified[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- A01.01 — Typhoid meningitis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- A01.02 — Typhoid fever with heart involvement[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- A01.03 — Typhoid pneumonia[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- A01.04 — Typhoid arthritis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- A01.05 — Typhoid osteomyelitis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- A01.09 — Typhoid fever with other complications[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- A01.1 — Paratyphoid fever A[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 392 more
DRG family
- DRG 867 — OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH MCC[DRG family]: “OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH MCC — same CMS DRG family (867-869), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 867-869) · FY2027
- DRG 868 — OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH CC[DRG family]: “OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH CC — same CMS DRG family (867-869), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 867-869) · FY2027
Read from: CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44. All data sources · How to read the labels · How MedCoder verifies its implementation
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources