201 MS-DRG: PNEUMOTHORAX WITHOUT CC/MCC
MS-DRG 201 groups Medicare inpatient hospital stays for: PNEUMOTHORAX WITHOUT CC/MCC. 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 | None |
| Relative Weight | 0.6782 |
| Relative Weight (10% Cap Applied) | 0.6782 |
| Geometric Mean Length of Stay | 2.2 days |
| Arithmetic Mean Length of Stay | 2.7 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
14 diagnosis codes can drive assignment here: J93.0, J93.11, J93.12, J93.81, J93.82, J93.83, J93.9, J95.811, J95.812, J98.2, S27.0XXA, S27.1XXA and 2 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 201 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 (14)
- J93.0 — Spontaneous tension pneumothorax[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- J93.11 — Primary spontaneous pneumothorax[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- J93.12 — Secondary spontaneous pneumothorax[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- J93.81 — Chronic pneumothorax[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- J93.82 — Other air leak[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- J93.83 — Other pneumothorax[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- J93.9 — Pneumothorax, unspecified[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- J95.811 — Postprocedural pneumothorax[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 6 more
DRG family
- DRG 199 — PNEUMOTHORAX WITH MCC[DRG family]: “PNEUMOTHORAX WITH MCC — same CMS DRG family (199-201), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 199-201) · FY2027
- DRG 200 — PNEUMOTHORAX WITH CC[DRG family]: “PNEUMOTHORAX WITH CC — same CMS DRG family (199-201), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 199-201) · 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