204 MS-DRG: RESPIRATORY SIGNS AND SYMPTOMS
MS-DRG 204 groups Medicare inpatient hospital stays for: RESPIRATORY SIGNS AND SYMPTOMS. This is a medical MS-DRG. It falls under MDC 04 (Diseases and Disorders of the Respiratory System).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 04 — Diseases and Disorders of the Respiratory System |
| DRG Type | Medical |
| Severity Level | N/A |
| Relative Weight | 0.821 |
| Relative Weight (10% Cap Applied) | 0.821 |
| Geometric Mean Length of Stay | 2.1 days |
| Arithmetic Mean Length of Stay | 2.7 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
30 diagnosis codes can drive assignment here: G47.32, R04.2, R04.81, R04.89, R04.9, R05.1, R05.2, R05.3, R05.4, R05.8, R05.9, R06.00 and 18 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 204 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 04 — Diseases and Disorders of the Respiratory System[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (30)
- G47.32 — High altitude periodic breathing[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- R04.2 — Hemoptysis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- R04.81 — Acute idiopathic pulmonary hemorrhage in infants[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- R04.89 — Hemorrhage from other sites in respiratory passages[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- R04.9 — Hemorrhage from respiratory passages, unspecified[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- R05.1 — Acute cough[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- R05.2 — Subacute cough[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- R05.3 — Chronic cough[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 22 more
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