MS-DRG 600: NON-MALIGNANT BREAST DISORDERS WITH CC/MCC
MS-DRG 600 is non-malignant breast disorders with cc/mcc, in MDC 09 (a medical DRG), at the with-CC (complication or comorbidity) level. Its FY2027 relative weight is 0.9975, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 3.10 days. 93 ICD-10-CM principal diagnoses group into MS-DRGs 600–601 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 0.9975
- Geometric mean LOS
- 3.10
- Arithmetic mean LOS
- 4.10
- Post-acute transfer
- No
Principal diagnoses that group to MS-DRGs 600–601
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 93 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 600–601 the case lands in. The 24 most-searched:
- N62Hypertrophy of breast
- N64.4Mastodynia
- R92.2Inconclusive mammogram
- R92.8Other abnormal and inconclusive findings on diagnostic imaging of breast
- R92.30Dense breasts, unspecified
- N63.0Unspecified lump in unspecified breast
- N63.10Unspecified lump in the right breast, unspecified quadrant
- N63.20Unspecified lump in the left breast, unspecified quadrant
- N61.1Abscess of the breast and nipple
- N64.89Other specified disorders of breast
- R92.333Mammographic heterogeneous density, bilateral breasts
- N61.0Mastitis without abscess
- R92.1Mammographic calcification found on diagnostic imaging of breast
- N60.02Solitary cyst of left breast
- N60.11Diffuse cystic mastopathy of right breast
- N63.11Unspecified lump in the right breast, upper outer quadrant
- N63.12Unspecified lump in the right breast, upper inner quadrant
- N63.13Unspecified lump in the right breast, lower outer quadrant
- N63.21Unspecified lump in the left breast, upper outer quadrant
- N63.25Unspecified lump in the left breast, overlapping quadrants
- N64.52Nipple discharge
- N64.59Other signs and symptoms in breast
- N64.81Ptosis of breast
- N64.9Disorder of breast, unspecified
69 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 600.
| 600 | NON-MALIGNANT BREAST DISORDERS WITH CC/MCC | 0.9975 | |
| 601 | NON-MALIGNANT BREAST DISORDERS WITHOUT CC/MCC | 0.6017 | -0.3958 |
All FY2027 MS-DRGs · MDC 09