MS-DRG 148: EAR, NOSE, MOUTH AND THROAT MALIGNANCY WITHOUT CC/MCC
MS-DRG 148 is ear, nose, mouth and throat malignancy without cc/mcc, in MDC 03 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 0.8008, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 2.20 days. 102 ICD-10-CM principal diagnoses group into MS-DRGs 146–148 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 0.8008
- Geometric mean LOS
- 2.20
- Arithmetic mean LOS
- 3.00
- Post-acute transfer
- No
Principal diagnoses that group to MS-DRGs 146–148
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 102 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 146–148 the case lands in. The 24 most-searched:
- C01Malignant neoplasm of base of tongue
- C32.0Malignant neoplasm of glottis
- C76.0Malignant neoplasm of head, face and neck
- C02.9Malignant neoplasm of tongue, unspecified
- C07Malignant neoplasm of parotid gland
- C09.9Malignant neoplasm of tonsil, unspecified
- C10.9Malignant neoplasm of oropharynx, unspecified
- C32.9Malignant neoplasm of larynx, unspecified
- C06.9Malignant neoplasm of mouth, unspecified
- C30.0Malignant neoplasm of nasal cavity
- C32.1Malignant neoplasm of supraglottis
- C02.1Malignant neoplasm of border of tongue
- C09.0Malignant neoplasm of tonsillar fossa
- C11.9Malignant neoplasm of nasopharynx, unspecified
- C14.0Malignant neoplasm of pharynx, unspecified
- C00.0Malignant neoplasm of external upper lip
- C00.2Malignant neoplasm of external lip, unspecified
- C10.2Malignant neoplasm of lateral wall of oropharynx
- C10.8Malignant neoplasm of overlapping sites of oropharynx
- C12Malignant neoplasm of pyriform sinus
- C13.9Malignant neoplasm of hypopharynx, unspecified
- C31.0Malignant neoplasm of maxillary sinus
- C31.1Malignant neoplasm of ethmoidal sinus
- C32.3Malignant neoplasm of laryngeal cartilage
78 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 148.
| 146 | EAR, NOSE, MOUTH AND THROAT MALIGNANCY WITH MCC | 2.1329 | +1.3321 |
| 147 | EAR, NOSE, MOUTH AND THROAT MALIGNANCY WITH CC | 1.3055 | +0.5047 |
| 148 | EAR, NOSE, MOUTH AND THROAT MALIGNANCY WITHOUT CC/MCC | 0.8008 |
All FY2027 MS-DRGs · MDC 03