ICD-10 · PDGM grouping
I63 Cerebral infarction
All 91 codes in the I63 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
91
Can lead a claim
91
Cannot lead a claim
0
What CMS assigns to I63
All 91 codes group to Neuro Rehabilitation. None of the 91 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in I63
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| I63.0 Cerebral infarction due to thrombosis of precerebral arteries | ||||
| I63.00 | Cerebral infarction due to thrombosis of unspecified precerebral arteryCMS: Cerebral infarction due to thombos unsp precerebral artery | Can lead a claim | B | None |
| I63.01 Cerebral infarction due to thrombosis of vertebral artery | ||||
| I63.011 | Cerebral infarction due to thrombosis of right vertebral arteryCMS: Cerebral infarction due to thrombosis of r verteb art | Can lead a claim | B | None |
| I63.012 | Cerebral infarction due to thrombosis of left vertebral arteryCMS: Cerebral infarction due to thrombosis of l verteb art | Can lead a claim | B | None |
| I63.013 | Cerebral infarction due to thrombosis of bilateral vertebral arteriesCMS: Cerebral infrc due to thrombosis of bilateral verteb art | Can lead a claim | B | None |
| I63.019 | Cerebral infarction due to thrombosis of unspecified vertebral arteryCMS: Cerebral infarction due to thombos unsp vertebral artery | Can lead a claim | B | None |
| I63.02 | Cerebral infarction due to thrombosis of basilar artery | Can lead a claim | B | None |
| I63.03 Cerebral infarction due to thrombosis of carotid artery | ||||
| I63.031 | Cerebral infarction due to thrombosis of right carotid arteryCMS: Cerebral infrc due to thrombosis of right carotid artery | Can lead a claim | B | None |
| I63.032 | Cerebral infarction due to thrombosis of left carotid artery | Can lead a claim | B | None |
| I63.033 | Cerebral infarction due to thrombosis of bilateral carotid arteriesCMS: Cerebral infrc due to thombos of bilateral carotid arteries | Can lead a claim | B | None |
| I63.039 | Cerebral infarction due to thrombosis of unspecified carotid arteryCMS: Cerebral infarction due to thrombosis of unsp carotid artery | Can lead a claim | B | None |
| I63.09 | Cerebral infarction due to thrombosis of other precerebral arteryCMS: Cerebral infarction due to thrombosis of precerebral artery | Can lead a claim | B | None |
| I63.1 Cerebral infarction due to embolism of precerebral arteries | ||||
| I63.10 | Cerebral infarction due to embolism of unspecified precerebral arteryCMS: Cerebral infarction due to embolism of unsp precerb artery | Can lead a claim | B | None |
| I63.11 Cerebral infarction due to embolism of vertebral artery | ||||
| I63.111 | Cerebral infarction due to embolism of right vertebral arteryCMS: Cerebral infarction due to embolism of r verteb art | Can lead a claim | B | None |
| I63.112 | Cerebral infarction due to embolism of left vertebral artery | Can lead a claim | B | None |
| I63.113 | Cerebral infarction due to embolism of bilateral vertebral arteriesCMS: Cerebral infarction due to embolism of bilateral verteb art | Can lead a claim | B | None |
| I63.119 | Cerebral infarction due to embolism of unspecified vertebral arteryCMS: Cerebral infarction due to embolism of unsp vertebral artery | Can lead a claim | B | None |
| I63.12 | Cerebral infarction due to embolism of basilar artery | Can lead a claim | B | None |
| I63.13 Cerebral infarction due to embolism of carotid artery | ||||
| I63.131 | Cerebral infarction due to embolism of right carotid artery | Can lead a claim | B | None |
| I63.132 | Cerebral infarction due to embolism of left carotid artery | Can lead a claim | B | None |
| I63.133 | Cerebral infarction due to embolism of bilateral carotid arteriesCMS: Cerebral infrc due to embolism of bilateral carotid arteries | Can lead a claim | B | None |
| I63.139 | Cerebral infarction due to embolism of unspecified carotid arteryCMS: Cerebral infarction due to embolism of unsp carotid artery | Can lead a claim | B | None |
| I63.19 | Cerebral infarction due to embolism of other precerebral arteryCMS: Cerebral infarction due to embolism of precerebral artery | Can lead a claim | B | None |
| I63.2 Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteries | ||||
| I63.20 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified precerebral arteriesCMS: Cereb infrc due to unsp occls or stenos of unsp precerb art | Can lead a claim | B | None |
| I63.21 Cerebral infarction due to unspecified occlusion or stenosis of vertebral arteries | ||||
| I63.211 | Cerebral infarction due to unspecified occlusion or stenosis of right vertebral arteryCMS: Cerebral infrc due to unsp occls or stenosis of r verteb art | Can lead a claim | B | None |
| I63.212 | Cerebral infarction due to unspecified occlusion or stenosis of left vertebral arteryCMS: Cerebral infrc due to unsp occls or stenosis of l verteb art | Can lead a claim | B | None |
| I63.213 | Cerebral infarction due to unspecified occlusion or stenosis of bilateral vertebral arteriesCMS: Cereb infrc due to unsp occls or stenosis of bi verteb art | Can lead a claim | B | None |
| I63.219 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified vertebral arteryCMS: Cereb infrc due to unsp occls or stenosis of unsp verteb art | Can lead a claim | B | None |
| I63.22 | Cerebral infarction due to unspecified occlusion or stenosis of basilar arteryCMS: Cereb infrc due to unsp occls or stenosis of basilar artery | Can lead a claim | B | None |
| I63.23 Cerebral infarction due to unspecified occlusion or stenosis of carotid arteries | ||||
| I63.231 | Cerebral infarction due to unspecified occlusion or stenosis of right carotid arteriesCMS: Cereb infrc due to unsp occls or stenos of right carotid art | Can lead a claim | B | None |
| I63.232 | Cerebral infarction due to unspecified occlusion or stenosis of left carotid arteriesCMS: Cereb infrc due to unsp occls or stenos of left carotid art | Can lead a claim | B | None |
| I63.233 | Cerebral infarction due to unspecified occlusion or stenosis of bilateral carotid arteriesCMS: Cereb infrc due to unsp occls or stenosis of bi carotid art | Can lead a claim | B | None |
| I63.239 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified carotid arteryCMS: Cereb infrc due to unsp occls or stenos of unsp crtd artery | Can lead a claim | B | None |
| I63.29 | Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteriesCMS: Cerebral infrc due to unsp occls or stenosis of precerb art | Can lead a claim | B | None |
| I63.3 Cerebral infarction due to thrombosis of cerebral arteries | ||||
| I63.30 | Cerebral infarction due to thrombosis of unspecified cerebral arteryCMS: Cerebral infarction due to thombos unsp cerebral artery | Can lead a claim | B | None |
| I63.31 Cerebral infarction due to thrombosis of middle cerebral artery | ||||
| I63.311 | Cerebral infarction due to thrombosis of right middle cerebral arteryCMS: Cereb infrc due to thombos of right middle cerebral artery | Can lead a claim | B | None |
| I63.312 | Cerebral infarction due to thrombosis of left middle cerebral arteryCMS: Cerebral infrc due to thombos of left middle cerebral artery | Can lead a claim | B | None |
| I63.313 | Cerebral infarction due to thrombosis of bilateral middle cerebral arteriesCMS: Cerebral infrc due to thombos of bi middle cerebral arteries | Can lead a claim | B | None |
| I63.319 | Cerebral infarction due to thrombosis of unspecified middle cerebral arteryCMS: Cerebral infrc due to thombos unsp middle cerebral artery | Can lead a claim | B | None |
| I63.32 Cerebral infarction due to thrombosis of anterior cerebral artery | ||||
| I63.321 | Cerebral infarction due to thrombosis of right anterior cerebral arteryCMS: Cerebral infrc due to thombos of right ant cerebral artery | Can lead a claim | B | None |
| I63.322 | Cerebral infarction due to thrombosis of left anterior cerebral arteryCMS: Cerebral infrc due to thombos of left ant cerebral artery | Can lead a claim | B | None |
| I63.323 | Cerebral infarction due to thrombosis of bilateral anterior cerebral arteriesCMS: Cerebral infrc due to thombos of bi ant cerebral arteries | Can lead a claim | B | None |
| I63.329 | Cerebral infarction due to thrombosis of unspecified anterior cerebral arteryCMS: Cerebral infrc due to thombos unsp anterior cerebral artery | Can lead a claim | B | None |
| I63.33 Cerebral infarction due to thrombosis of posterior cerebral artery | ||||
| I63.331 | Cerebral infarction due to thrombosis of right posterior cerebral arteryCMS: Cerebral infrc due to thombos of right post cerebral artery | Can lead a claim | B | None |
| I63.332 | Cerebral infarction due to thrombosis of left posterior cerebral arteryCMS: Cerebral infrc due to thombos of left post cerebral artery | Can lead a claim | B | None |
| I63.333 | Cerebral infarction due to thrombosis of bilateral posterior cerebral arteriesCMS: Cerebral infrc due to thombos of bi post cerebral arteries | Can lead a claim | B | None |
| I63.339 | Cerebral infarction due to thrombosis of unspecified posterior cerebral arteryCMS: Cerebral infrc due to thombos unsp posterior cerebral artery | Can lead a claim | B | None |
| I63.34 Cerebral infarction due to thrombosis of cerebellar artery | ||||
| I63.341 | Cerebral infarction due to thrombosis of right cerebellar arteryCMS: Cerebral infrc due to thrombosis of right cereblr artery | Can lead a claim | B | None |
| I63.342 | Cerebral infarction due to thrombosis of left cerebellar arteryCMS: Cerebral infarction due to thrombosis of left cereblr artery | Can lead a claim | B | None |
| I63.343 | Cerebral infarction due to thrombosis of bilateral cerebellar arteriesCMS: Cerebral infrc due to thombos of bilateral cereblr arteries | Can lead a claim | B | None |
| I63.349 | Cerebral infarction due to thrombosis of unspecified cerebellar arteryCMS: Cerebral infarction due to thombos unsp cerebellar artery | Can lead a claim | B | None |
| I63.39 | Cerebral infarction due to thrombosis of other cerebral arteryCMS: Cerebral infarction due to thrombosis of oth cerebral artery | Can lead a claim | B | None |
| I63.4 Cerebral infarction due to embolism of cerebral arteries | ||||
| I63.40 | Cerebral infarction due to embolism of unspecified cerebral arteryCMS: Cerebral infarction due to embolism of unsp cerebral artery | Can lead a claim | B | None |
| I63.41 Cerebral infarction due to embolism of middle cerebral artery | ||||
| I63.411 | Cerebral infarction due to embolism of right middle cerebral arteryCMS: Cereb infrc due to embolism of right middle cerebral artery | Can lead a claim | B | None |
| I63.412 | Cerebral infarction due to embolism of left middle cerebral arteryCMS: Cereb infrc due to embolism of left middle cerebral artery | Can lead a claim | B | None |
| I63.413 | Cerebral infarction due to embolism of bilateral middle cerebral arteriesCMS: Cerebral infrc due to embolism of bi middle cerebral art | Can lead a claim | B | None |
| I63.419 | Cerebral infarction due to embolism of unspecified middle cerebral arteryCMS: Cereb infrc due to embolism of unsp middle cerebral artery | Can lead a claim | B | None |
| I63.42 Cerebral infarction due to embolism of anterior cerebral artery | ||||
| I63.421 | Cerebral infarction due to embolism of right anterior cerebral arteryCMS: Cerebral infrc due to embolism of right ant cerebral artery | Can lead a claim | B | None |
| I63.422 | Cerebral infarction due to embolism of left anterior cerebral arteryCMS: Cerebral infrc due to embolism of left ant cerebral artery | Can lead a claim | B | None |
| I63.423 | Cerebral infarction due to embolism of bilateral anterior cerebral arteriesCMS: Cerebral infrc due to embolism of bi ant cerebral arteries | Can lead a claim | B | None |
| I63.429 | Cerebral infarction due to embolism of unspecified anterior cerebral arteryCMS: Cerebral infrc due to embolism of unsp ant cerebral artery | Can lead a claim | B | None |
| I63.43 Cerebral infarction due to embolism of posterior cerebral artery | ||||
| I63.431 | Cerebral infarction due to embolism of right posterior cerebral arteryCMS: Cerebral infrc due to embolism of right post cerebral artery | Can lead a claim | B | None |
| I63.432 | Cerebral infarction due to embolism of left posterior cerebral arteryCMS: Cerebral infrc due to embolism of left post cerebral artery | Can lead a claim | B | None |
| I63.433 | Cerebral infarction due to embolism of bilateral posterior cerebral arteriesCMS: Cerebral infrc due to embolism of bi post cerebral arteries | Can lead a claim | B | None |
| I63.439 | Cerebral infarction due to embolism of unspecified posterior cerebral arteryCMS: Cerebral infrc due to embolism of unsp post cerebral artery | Can lead a claim | B | None |
| I63.44 Cerebral infarction due to embolism of cerebellar artery | ||||
| I63.441 | Cerebral infarction due to embolism of right cerebellar arteryCMS: Cerebral infarction due to embolism of right cereblr artery | Can lead a claim | B | None |
| I63.442 | Cerebral infarction due to embolism of left cerebellar arteryCMS: Cerebral infarction due to embolism of left cereblr artery | Can lead a claim | B | None |
| I63.443 | Cerebral infarction due to embolism of bilateral cerebellar arteriesCMS: Cerebral infrc due to embolism of bilateral cereblr arteries | Can lead a claim | B | None |
| I63.449 | Cerebral infarction due to embolism of unspecified cerebellar arteryCMS: Cerebral infarction due to embolism of unsp cereblr artery | Can lead a claim | B | None |
| I63.49 | Cerebral infarction due to embolism of other cerebral artery | Can lead a claim | B | None |
| I63.5 Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries | ||||
| I63.50 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral arteryCMS: Cereb infrc due to unsp occls or stenos of unsp cereb artery | Can lead a claim | B | None |
| I63.51 Cerebral infarction due to unspecified occlusion or stenosis of middle cerebral artery | ||||
| I63.511 | Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of right mid cereb art | Can lead a claim | B | None |
| I63.512 | Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of left mid cereb art | Can lead a claim | B | None |
| I63.513 | Cerebral infarction due to unspecified occlusion or stenosis of bilateral middle cerebral arteriesCMS: Cereb infrc d/t unsp occls or stenos of bi middle cereb art | Can lead a claim | B | None |
| I63.519 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified middle cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of unsp mid cereb art | Can lead a claim | B | None |
| I63.52 Cerebral infarction due to unspecified occlusion or stenosis of anterior cerebral artery | ||||
| I63.521 | Cerebral infarction due to unspecified occlusion or stenosis of right anterior cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of right ant cereb art | Can lead a claim | B | None |
| I63.522 | Cerebral infarction due to unspecified occlusion or stenosis of left anterior cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of left ant cereb art | Can lead a claim | B | None |
| I63.523 | Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteriesCMS: Cereb infrc due to unsp occls or stenos of bi ant cereb art | Can lead a claim | B | None |
| I63.529 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of unsp ant cereb art | Can lead a claim | B | None |
| I63.53 Cerebral infarction due to unspecified occlusion or stenosis of posterior cerebral artery | ||||
| I63.531 | Cerebral infarction due to unspecified occlusion or stenosis of right posterior cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of right post cereb art | Can lead a claim | B | None |
| I63.532 | Cerebral infarction due to unspecified occlusion or stenosis of left posterior cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of left post cereb art | Can lead a claim | B | None |
| I63.533 | Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteriesCMS: Cereb infrc due to unsp occls or stenos of bi post cereb art | Can lead a claim | B | None |
| I63.539 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral arteryCMS: Cereb infrc d/t unsp occls or stenos of unsp post cereb art | Can lead a claim | B | None |
| I63.54 Cerebral infarction due to unspecified occlusion or stenosis of cerebellar artery | ||||
| I63.541 | Cerebral infarction due to unspecified occlusion or stenosis of right cerebellar arteryCMS: Cereb infrc due to unsp occls or stenos of right cereblr art | Can lead a claim | B | None |
| I63.542 | Cerebral infarction due to unspecified occlusion or stenosis of left cerebellar arteryCMS: Cereb infrc due to unsp occls or stenos of left cereblr art | Can lead a claim | B | None |
| I63.543 | Cerebral infarction due to unspecified occlusion or stenosis of bilateral cerebellar arteriesCMS: Cereb infrc due to unsp occls or stenosis of bi cereblr art | Can lead a claim | B | None |
| I63.549 | Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebellar arteryCMS: Cereb infrc due to unsp occls or stenos of unsp cereblr art | Can lead a claim | B | None |
| I63.59 | Cerebral infarction due to unspecified occlusion or stenosis of other cerebral arteryCMS: Cereb infrc due to unsp occls or stenosis of cerebral artery | Can lead a claim | B | None |
| I63.6 | Cerebral infarction due to cerebral venous thrombosis, nonpyogenicCMS: Cerebral infrc due to cerebral venous thombos, nonpyogenic | Can lead a claim | B | None |
| I63.8 Other cerebral infarction | ||||
| I63.81 | Other cerebral infarction due to occlusion or stenosis of small arteryCMS: Other cereb infrc due to occls or stenosis of small artery | Can lead a claim | B | None |
| I63.89 | Other cerebral infarction | Can lead a claim | B | None |
| I63.9 | Cerebral infarction, unspecified | Can lead a claim | B | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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