MS-DRG 181: RESPIRATORY NEOPLASMS WITH CC
MS-DRG 181 is respiratory neoplasms with cc, in MDC 04 (a medical DRG), at the with-CC (complication or comorbidity) level. Its FY2027 relative weight is 1.0936, so a case here pays more than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 3.10 days. 64 ICD-10-CM principal diagnoses group into MS-DRGs 180–182 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 1.0936
- Geometric mean LOS
- 3.10
- Arithmetic mean LOS
- 4.10
- Post-acute transfer
- No
Principal diagnoses that group to MS-DRGs 180–182
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 64 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 180–182 the case lands in. The 24 most-searched:
- C34.90Malignant neoplasm of unspecified part of unspecified bronchus or lung
- C34.11Malignant neoplasm of upper lobe, right bronchus or lung
- C34.12Malignant neoplasm of upper lobe, left bronchus or lung
- C34.31Malignant neoplasm of lower lobe, right bronchus or lung
- C34.32Malignant neoplasm of lower lobe, left bronchus or lung
- C34.91Malignant neoplasm of unspecified part of right bronchus or lung
- C34.92Malignant neoplasm of unspecified part of left bronchus or lung
- C78.00Secondary malignant neoplasm of unspecified lung
- C34.2Malignant neoplasm of middle lobe, bronchus or lung
- C78.01Secondary malignant neoplasm of right lung
- C34.81Malignant neoplasm of overlapping sites of right bronchus and lung
- C78.02Secondary malignant neoplasm of left lung
- J91.0Malignant pleural effusion
- D38.1Neoplasm of uncertain behavior of trachea, bronchus and lung
- D49.1Neoplasm of unspecified behavior of respiratory system
- C33Malignant neoplasm of trachea
- C34.00Malignant neoplasm of unspecified main bronchus
- C34.01Malignant neoplasm of right main bronchus
- C34.82Malignant neoplasm of overlapping sites of left bronchus and lung
- C45.0Mesothelioma of pleura
- C78.1Secondary malignant neoplasm of mediastinum
- C78.2Secondary malignant neoplasm of pleura
- C34.10Malignant neoplasm of upper lobe, unspecified bronchus or lung
- C38.3Malignant neoplasm of mediastinum, part unspecified
40 more codes group here. Open any code above for its full hierarchy, or check a whole claim in the free DRG calculator.
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 181.
| 180 | RESPIRATORY NEOPLASMS WITH MCC | 1.7806 | +0.6870 |
| 181 | RESPIRATORY NEOPLASMS WITH CC | 1.0936 | |
| 182 | RESPIRATORY NEOPLASMS WITHOUT CC/MCC | 0.7439 | -0.3497 |
All FY2027 MS-DRGs · MDC 04