MS-DRG 199: PNEUMOTHORAX WITH MCC
MS-DRG 199 is pneumothorax with mcc, in MDC 04 (a medical DRG), at the with-MCC (major complication or comorbidity) level. Its FY2027 relative weight is 1.7322, so a case here pays more than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 4.70 days. 14 ICD-10-CM principal diagnoses group into MS-DRGs 199–201 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 1.7322
- Geometric mean LOS
- 4.70
- Arithmetic mean LOS
- 6.10
- Post-acute transfer
- No
Principal diagnoses that group to MS-DRGs 199–201
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 14 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 199–201 the case lands in. The 14 most-searched:
- J93.9Pneumothorax, unspecified
- J93.83Other pneumothorax
- J98.2Interstitial emphysema
- J93.11Primary spontaneous pneumothorax
- S27.0XXATraumatic pneumothorax, initial encounter
- S27.1XXATraumatic hemothorax, initial encounter
- S27.2XXATraumatic hemopneumothorax, initial encounter
- J93.0Spontaneous tension pneumothorax
- J93.12Secondary spontaneous pneumothorax
- J93.81Chronic pneumothorax
- J93.82Other air leak
- J95.811Postprocedural pneumothorax
- J95.812Postprocedural air leak
- T79.7XXATraumatic subcutaneous emphysema, initial encounter
The severity splits
Same base DRG, split by whether a secondary diagnosis is a CC or MCC. The last column is the weight change from MS-DRG 199.
| 199 | PNEUMOTHORAX WITH MCC | 1.7322 | |
| 200 | PNEUMOTHORAX WITH CC | 1.0774 | -0.6548 |
| 201 | PNEUMOTHORAX WITHOUT CC/MCC | 0.6782 | -1.0540 |
All FY2027 MS-DRGs · MDC 04