FY2027 ICD-10-CM reference
I63: Cerebral infarction
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Cerebral infarction. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
More specific FY2027 codes
- I63.0: Cerebral infarction due to thrombosis of precerebral arteriesNonbillable heading
- I63.1: Cerebral infarction due to embolism of precerebral arteriesNonbillable heading
- I63.2: Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteriesNonbillable heading
- I63.3: Cerebral infarction due to thrombosis of cerebral arteriesNonbillable heading
- I63.4: Cerebral infarction due to embolism of cerebral arteriesNonbillable heading
- I63.5: Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteriesNonbillable heading
- I63.6: Cerebral infarction due to cerebral venous thrombosis, nonpyogenicBillable code
- I63.8: Other cerebral infarctionNonbillable heading
- I63.9: Cerebral infarction, unspecifiedBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: I00-I99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: I00-I99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: I00-I99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: I00-I99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: I00-I99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: I00-I99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: I00-I99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: I00-I99 (chapter, inherited).
Excludes2
systemic connective tissue disorders (M30-M36)
Source: I00-I99 (chapter, inherited).
Excludes2
transient cerebral ischemic attacks and related syndromes (G45.-)
Source: I00-I99 (chapter, inherited).
Instructional note
code to identify presence of:
Source: I60-I69 (section, inherited).
Instructional note
alcohol abuse and dependence (F10.-)
Source: I60-I69 (section, inherited).
Instructional note
exposure to environmental tobacco smoke (Z77.22)
Source: I60-I69 (section, inherited).
Instructional note
history of tobacco dependence (Z87.891)
Source: I60-I69 (section, inherited).
Instructional note
hypertension (I10-I1A)
Source: I60-I69 (section, inherited).
Instructional note
occupational exposure to environmental tobacco smoke (Z57.31)
Source: I60-I69 (section, inherited).
Instructional note
tobacco dependence (F17.-)
Source: I60-I69 (section, inherited).
Instructional note
tobacco use (Z72.0)
Source: I60-I69 (section, inherited).
Excludes1
traumatic intracranial hemorrhage (S06.-)
Source: I60-I69 (section, inherited).
Includes
occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction
Source: I63 (category, direct).
Instructional note
code, if applicable, to identify status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
Source: I63 (category, direct).
Instructional note
code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)
Source: I63 (category, direct).
Excludes1
neonatal cerebral infarction (P91.82-)
Source: I63 (category, direct).
Excludes2
chronic, without residual deficits (sequelae) (Z86.73)
Source: I63 (category, direct).
Excludes2
sequelae of cerebral infarction (I69.3-)
Source: I63 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does I63 mean in FY2027?
The official ICD-10-CM descriptor is Cerebral infarction. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is I63 billable in FY2027?
The FY2027 order file marks I63 as a nonbillable heading. Select a complete billable child code.
Does I63 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.
Review the FY2026 April edition