MS-DRG 024: CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITHOUT MCC
MS-DRG 024 is craniotomy with major device implant or acute complex cns principal diagnosis without mcc, in MDC 01 (a surgical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 3.9708, so a case here pays more than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 3.60 days. 311 ICD-10-CM principal diagnoses group into MS-DRGs 023–024 under the CMS definitions manual; the most-searched are listed below.
FY2027 payment factors
- Relative weight
- 3.9708
- Geometric mean LOS
- 3.60
- Arithmetic mean LOS
- 4.70
- Post-acute transfer
- Yes
This DRG is subject to the post-acute care transfer policy: a discharge to a qualifying setting below the mean length of stay is paid per diem rather than in full.
Principal diagnoses that group to MS-DRGs 023–024
From the CMS MS-DRG definitions manual’s principal-diagnosis index: 311 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 023–024 the case lands in. The 24 most-searched:
- I63.9Cerebral infarction, unspecified
- I63.81Other cerebral infarction due to occlusion or stenosis of small artery
- I60.9Nontraumatic subarachnoid hemorrhage, unspecified
- I61.9Nontraumatic intracerebral hemorrhage, unspecified
- I63.89Other cerebral infarction
- G92.8Other toxic encephalopathy
- I62.9Nontraumatic intracranial hemorrhage, unspecified
- I63.511Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral artery
- G08Intracranial and intraspinal phlebitis and thrombophlebitis
- I61.0Nontraumatic intracerebral hemorrhage in hemisphere, subcortical
- I63.50Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral artery
- I63.512Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral artery
- G04.81Other encephalitis and encephalomyelitis
- G06.1Intraspinal abscess and granuloma
- G37.3Acute transverse myelitis in demyelinating disease of central nervous system
- I61.1Nontraumatic intracerebral hemorrhage in hemisphere, cortical
- I61.5Nontraumatic intracerebral hemorrhage, intraventricular
- I61.8Other nontraumatic intracerebral hemorrhage
- G04.90Encephalitis and encephalomyelitis, unspecified
- G06.0Intracranial abscess and granuloma
- G06.2Extradural and subdural abscess, unspecified
- I60.7Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery
- I63.311Cerebral infarction due to thrombosis of right middle cerebral artery
- I63.40Cerebral infarction due to embolism of unspecified cerebral artery
287 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 024.
| 023 | CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITH MCC OR ANTINEOPLASTIC IMPLANT OR EPILEPSY WITH NEUROSTIMULATOR | 5.7444 | +1.7736 |
| 024 | CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITHOUT MCC | 3.9708 |
All FY2027 MS-DRGs · MDC 01