DRG 066
Medical DRGIntracranial Hemorrhage or Cerebral Infarction without CC/MCC
What is MS-DRG 066?
MS-DRG 066 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 01 (MDC 01) without a significant Complication or Comorbidity. It maps to 124 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.6844 with a geometric mean length of stay of 1.9 days and an arithmetic mean of 2.3 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
Related MS-DRGs in This Severity Group
The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.
| DRG | Title | Rel. Weight | GMLOS |
|---|---|---|---|
| 064 | Intracranial Hemorrhage or Cerebral Infarction with MCC | 2.0110 | 4.4 days |
| 066 | Intracranial Hemorrhage or Cerebral Infarction without CC/MCCThis page | 0.6844 | 1.9 days |
Linked ICD-10-CM Diagnosis Mappings
- I60.00
Nontraumatic subarachnoid hemorrhage from unspecified carotid siphon and bifurcation
BillableChapter 9 - I60.01
Nontraumatic subarachnoid hemorrhage from right carotid siphon and bifurcation
BillableChapter 9 - I60.02
Nontraumatic subarachnoid hemorrhage from left carotid siphon and bifurcation
BillableChapter 9 - I60.10
Nontraumatic subarachnoid hemorrhage from unspecified middle cerebral artery
BillableChapter 9 - I60.11
Nontraumatic subarachnoid hemorrhage from right middle cerebral artery
BillableChapter 9 - I60.12
Nontraumatic subarachnoid hemorrhage from left middle cerebral artery
BillableChapter 9 - I60.2
Nontraumatic subarachnoid hemorrhage from anterior communicating artery
BillableChapter 9 - I60.30
Nontraumatic subarachnoid hemorrhage from unspecified posterior communicating artery
BillableChapter 9 - I60.31
Nontraumatic subarachnoid hemorrhage from right posterior communicating artery
BillableChapter 9 - I60.32
Nontraumatic subarachnoid hemorrhage from left posterior communicating artery
BillableChapter 9 - I60.4
Nontraumatic subarachnoid hemorrhage from basilar artery
BillableChapter 9 - I60.50
Nontraumatic subarachnoid hemorrhage from unspecified vertebral artery
BillableChapter 9 - I60.51
Nontraumatic subarachnoid hemorrhage from right vertebral artery
BillableChapter 9 - I60.52
Nontraumatic subarachnoid hemorrhage from left vertebral artery
BillableChapter 9 - I60.6
Nontraumatic subarachnoid hemorrhage from other intracranial arteries
BillableChapter 9 - I60.7
Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery
BillableChapter 9 - I60.8
Other nontraumatic subarachnoid hemorrhage
BillableChapter 9 - I60.9
Nontraumatic subarachnoid hemorrhage, unspecified
BillableChapter 9 - I61.0
Nontraumatic intracerebral hemorrhage in hemisphere, subcortical
BillableChapter 9 - I61.1
Nontraumatic intracerebral hemorrhage in hemisphere, cortical
BillableChapter 9 - I61.2
Nontraumatic intracerebral hemorrhage in hemisphere, unspecified
BillableChapter 9 - I61.3
Nontraumatic intracerebral hemorrhage in brain stem
BillableChapter 9 - I61.4
Nontraumatic intracerebral hemorrhage in cerebellum
BillableChapter 9 - I61.5
Nontraumatic intracerebral hemorrhage, intraventricular
BillableChapter 9 - I61.6
Nontraumatic intracerebral hemorrhage, multiple localized
BillableChapter 9 - I61.8
Other nontraumatic intracerebral hemorrhage
BillableChapter 9 - I61.9
Nontraumatic intracerebral hemorrhage, unspecified
BillableChapter 9 - I62.00
Nontraumatic subdural hemorrhage, unspecified
BillableChapter 9 - I62.01
Nontraumatic acute subdural hemorrhage
BillableChapter 9 - I62.02
Nontraumatic subacute subdural hemorrhage
BillableChapter 9 - I62.03
Nontraumatic chronic subdural hemorrhage
BillableChapter 9 - I62.1
Nontraumatic extradural hemorrhage
BillableChapter 9 - I62.9
Nontraumatic intracranial hemorrhage, unspecified
BillableChapter 9 - I63.00
Cerebral infarction due to thrombosis of unspecified precerebral artery
BillableChapter 9 - I63.011
Cerebral infarction due to thrombosis of right vertebral artery
BillableChapter 9 - I63.012
Cerebral infarction due to thrombosis of left vertebral artery
BillableChapter 9 - I63.013
Cerebral infarction due to thrombosis of bilateral vertebral arteries
BillableChapter 9 - I63.019
Cerebral infarction due to thrombosis of unspecified vertebral artery
BillableChapter 9 - I63.02
Cerebral infarction due to thrombosis of basilar artery
BillableChapter 9 - I63.031
Cerebral infarction due to thrombosis of right carotid artery
BillableChapter 9 - I63.032
Cerebral infarction due to thrombosis of left carotid artery
BillableChapter 9 - I63.033
Cerebral infarction due to thrombosis of bilateral carotid arteries
BillableChapter 9 - I63.039
Cerebral infarction due to thrombosis of unspecified carotid artery
BillableChapter 9 - I63.09
Cerebral infarction due to thrombosis of other precerebral artery
BillableChapter 9 - I63.10
Cerebral infarction due to embolism of unspecified precerebral artery
BillableChapter 9 - I63.111
Cerebral infarction due to embolism of right vertebral artery
BillableChapter 9 - I63.112
Cerebral infarction due to embolism of left vertebral artery
BillableChapter 9 - I63.113
Cerebral infarction due to embolism of bilateral vertebral arteries
BillableChapter 9 - I63.119
Cerebral infarction due to embolism of unspecified vertebral artery
BillableChapter 9 - I63.12
Cerebral infarction due to embolism of basilar artery
BillableChapter 9 - I63.131
Cerebral infarction due to embolism of right carotid artery
BillableChapter 9 - I63.132
Cerebral infarction due to embolism of left carotid artery
BillableChapter 9 - I63.133
Cerebral infarction due to embolism of bilateral carotid arteries
BillableChapter 9 - I63.139
Cerebral infarction due to embolism of unspecified carotid artery
BillableChapter 9 - I63.19
Cerebral infarction due to embolism of other precerebral artery
BillableChapter 9 - I63.20
Cerebral infarction due to unspecified occlusion or stenosis of unspecified precerebral arteries
BillableChapter 9 - I63.211
Cerebral infarction due to unspecified occlusion or stenosis of right vertebral artery
BillableChapter 9 - I63.212
Cerebral infarction due to unspecified occlusion or stenosis of left vertebral artery
BillableChapter 9 - I63.213
Cerebral infarction due to unspecified occlusion or stenosis of bilateral vertebral arteries
BillableChapter 9 - I63.219
Cerebral infarction due to unspecified occlusion or stenosis of unspecified vertebral artery
BillableChapter 9 - I63.22
Cerebral infarction due to unspecified occlusion or stenosis of basilar artery
BillableChapter 9 - I63.231
Cerebral infarction due to unspecified occlusion or stenosis of right carotid arteries
BillableChapter 9 - I63.232
Cerebral infarction due to unspecified occlusion or stenosis of left carotid arteries
BillableChapter 9 - I63.233
Cerebral infarction due to unspecified occlusion or stenosis of bilateral carotid arteries
BillableChapter 9 - I63.239
Cerebral infarction due to unspecified occlusion or stenosis of unspecified carotid artery
BillableChapter 9 - I63.29
Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteries
BillableChapter 9 - I63.30
Cerebral infarction due to thrombosis of unspecified cerebral artery
BillableChapter 9 - I63.311
Cerebral infarction due to thrombosis of right middle cerebral artery
BillableChapter 9 - I63.312
Cerebral infarction due to thrombosis of left middle cerebral artery
BillableChapter 9 - I63.313
Cerebral infarction due to thrombosis of bilateral middle cerebral arteries
BillableChapter 9 - I63.319
Cerebral infarction due to thrombosis of unspecified middle cerebral artery
BillableChapter 9 - I63.321
Cerebral infarction due to thrombosis of right anterior cerebral artery
BillableChapter 9 - I63.322
Cerebral infarction due to thrombosis of left anterior cerebral artery
BillableChapter 9 - I63.323
Cerebral infarction due to thrombosis of bilateral anterior cerebral arteries
BillableChapter 9 - I63.329
Cerebral infarction due to thrombosis of unspecified anterior cerebral artery
BillableChapter 9 - I63.331
Cerebral infarction due to thrombosis of right posterior cerebral artery
BillableChapter 9 - I63.332
Cerebral infarction due to thrombosis of left posterior cerebral artery
BillableChapter 9 - I63.333
Cerebral infarction due to thrombosis of bilateral posterior cerebral arteries
BillableChapter 9 - I63.339
Cerebral infarction due to thrombosis of unspecified posterior cerebral artery
BillableChapter 9 - I63.341
Cerebral infarction due to thrombosis of right cerebellar artery
BillableChapter 9 - I63.342
Cerebral infarction due to thrombosis of left cerebellar artery
BillableChapter 9 - I63.343
Cerebral infarction due to thrombosis of bilateral cerebellar arteries
BillableChapter 9 - I63.349
Cerebral infarction due to thrombosis of unspecified cerebellar artery
BillableChapter 9 - I63.39
Cerebral infarction due to thrombosis of other cerebral artery
BillableChapter 9 - I63.40
Cerebral infarction due to embolism of unspecified cerebral artery
BillableChapter 9 - I63.411
Cerebral infarction due to embolism of right middle cerebral artery
BillableChapter 9 - I63.412
Cerebral infarction due to embolism of left middle cerebral artery
BillableChapter 9 - I63.413
Cerebral infarction due to embolism of bilateral middle cerebral arteries
BillableChapter 9 - I63.419
Cerebral infarction due to embolism of unspecified middle cerebral artery
BillableChapter 9 - I63.421
Cerebral infarction due to embolism of right anterior cerebral artery
BillableChapter 9 - I63.422
Cerebral infarction due to embolism of left anterior cerebral artery
BillableChapter 9 - I63.423
Cerebral infarction due to embolism of bilateral anterior cerebral arteries
BillableChapter 9 - I63.429
Cerebral infarction due to embolism of unspecified anterior cerebral artery
BillableChapter 9 - I63.431
Cerebral infarction due to embolism of right posterior cerebral artery
BillableChapter 9 - I63.432
Cerebral infarction due to embolism of left posterior cerebral artery
BillableChapter 9 - I63.433
Cerebral infarction due to embolism of bilateral posterior cerebral arteries
BillableChapter 9 - I63.439
Cerebral infarction due to embolism of unspecified posterior cerebral artery
BillableChapter 9 - I63.441
Cerebral infarction due to embolism of right cerebellar artery
BillableChapter 9 - I63.442
Cerebral infarction due to embolism of left cerebellar artery
BillableChapter 9 - I63.443
Cerebral infarction due to embolism of bilateral cerebellar arteries
BillableChapter 9 - I63.449
Cerebral infarction due to embolism of unspecified cerebellar artery
BillableChapter 9 - I63.49
Cerebral infarction due to embolism of other cerebral artery
BillableChapter 9 - I63.50
Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral artery
BillableChapter 9 - I63.511
Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral artery
BillableChapter 9 - I63.512
Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral artery
BillableChapter 9 - I63.513
Cerebral infarction due to unspecified occlusion or stenosis of bilateral middle cerebral arteries
BillableChapter 9 - I63.519
Cerebral infarction due to unspecified occlusion or stenosis of unspecified middle cerebral artery
BillableChapter 9 - I63.521
Cerebral infarction due to unspecified occlusion or stenosis of right anterior cerebral artery
BillableChapter 9 - I63.522
Cerebral infarction due to unspecified occlusion or stenosis of left anterior cerebral artery
BillableChapter 9 - I63.523
Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteries
BillableChapter 9 - I63.529
Cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral artery
BillableChapter 9 - I63.531
Cerebral infarction due to unspecified occlusion or stenosis of right posterior cerebral artery
BillableChapter 9 - I63.532
Cerebral infarction due to unspecified occlusion or stenosis of left posterior cerebral artery
BillableChapter 9 - I63.533
Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteries
BillableChapter 9 - I63.539
Cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral artery
BillableChapter 9 - I63.541
Cerebral infarction due to unspecified occlusion or stenosis of right cerebellar artery
BillableChapter 9 - I63.542
Cerebral infarction due to unspecified occlusion or stenosis of left cerebellar artery
BillableChapter 9 - I63.543
Cerebral infarction due to unspecified occlusion or stenosis of bilateral cerebellar arteries
BillableChapter 9 - I63.549
Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebellar artery
BillableChapter 9 - I63.59
Cerebral infarction due to unspecified occlusion or stenosis of other cerebral artery
BillableChapter 9 - I63.6
Cerebral infarction due to cerebral venous thrombosis, nonpyogenic
BillableChapter 9 - I63.81
Other cerebral infarction due to occlusion or stenosis of small artery
BillableChapter 9 - I63.89
Other cerebral infarction
BillableChapter 9 - I63.9
Cerebral infarction, unspecified
BillableChapter 9