2020 ICD-10-CM Diagnosis Code I63

Cerebral infarction

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • I63 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM I63 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I63 - other international versions of ICD-10 I63 may differ.
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • 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 (
    ICD-10-CM Diagnosis Code Z92.82

    Status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Code First
    • condition requiring tPA administration, such as:
    • acute cerebral infarction (I63.-)
    • acute myocardial infarction (I21.-, I22.-)
    Z92.82
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (I63) and the excluded code together.
  • sequelae of cerebral infarction (
    ICD-10-CM Diagnosis Code I69.3

    Sequelae of cerebral infarction

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Sequelae of stroke NOS
    I69.3-
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction
The following code(s) above I63 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I63:
  • I00-I99
    2020 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
  • I60-I69
    2020 ICD-10-CM Range I60-I69

    Cerebrovascular diseases

    Type 1 Excludes
    • traumatic intracranial hemorrhage (S06.-)
    Use Additional
    • code to identify presence of:
    • alcohol abuse and dependence (F10.-)
    • exposure to environmental tobacco smoke (Z77.22)
    • history of tobacco dependence (Z87.891)
    • hypertension (I10-I16)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)
    Cerebrovascular diseases
Clinical Information
  • An ischemic condition of the brain, producing a persistent focal neurological deficit in the area of distribution of the cerebral arteries.
  • The formation of an area of necrosis in the cerebrum caused by an insufficiency of arterial or venous blood flow. Infarcts of the cerebrum are generally classified by hemisphere (i.e., left vs. Right), lobe (e.g., frontal lobe infarction), arterial distribution (e.g., infarction, anterior cerebral artery), and etiology (e.g., embolic infarction).
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to I63:
  • Code Also: G43.6
    , D81.32
    , I67.850
    ICD-10-CM Diagnosis Code G43.6

    Persistent migraine aura with cerebral infarction

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Code Also
    • the type of cerebral infarction (I63.-)
    ICD-10-CM Diagnosis Code D81.32

    Adenosine deaminase 2 deficiency

      2020 - New Code Billable/Specific Code
    Applicable To
    • ADA2 deficiency
    • Adenosine deaminase deficiency type 2
    Code Also
    • , if applicable, any associated manifestations, such as:
    • polyarteritis nodosa (M30.0)
    • stroke (I63.-)
    ICD-10-CM Diagnosis Code I67.850

    Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy

      2019 - New Code 2020 Billable/Specific Code
    Applicable To
    • CADASIL
    Code Also
    • any associated diagnoses, such as:
    • epilepsy (G40.-)
    • stroke (I63.-)
    • vascular dementia (F01.-)
  • Code First: Z92.82
    , R29.7
    ICD-10-CM Diagnosis Code Z92.82

    Status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Code First
    • condition requiring tPA administration, such as:
    • acute cerebral infarction (I63.-)
    • acute myocardial infarction (I21.-, I22.-)
    ICD-10-CM Diagnosis Code R29.7

    National Institutes of Health Stroke Scale (NIHSS) score

      2017 - New Code 2018 2019 2020 Non-Billable/Non-Specific Code
    Code First
    • the type of cerebral infarction (I63-)
ICD-10-CM Codes Adjacent To I63
I61.8 Other nontraumatic intracerebral hemorrhage
I61.9 Nontraumatic intracerebral hemorrhage, unspecified
I62 Other and unspecified nontraumatic intracranial hemorrhage
I62.0 Nontraumatic subdural hemorrhage
I62.00 …… unspecified
I62.01 Nontraumatic acute subdural hemorrhage
I62.02 Nontraumatic subacute subdural hemorrhage
I62.03 Nontraumatic chronic subdural hemorrhage
I62.1 Nontraumatic extradural hemorrhage
I62.9 Nontraumatic intracranial hemorrhage, unspecified
I63 Cerebral infarction
I63.0 Cerebral infarction due to thrombosis of precerebral arteries
I63.00 Cerebral infarction due to thrombosis of unspecified precerebral artery
I63.01 Cerebral infarction due to thrombosis of vertebral artery
I63.011 Cerebral infarction due to thrombosis of right vertebral artery
I63.012 Cerebral infarction due to thrombosis of left vertebral artery
I63.013 Cerebral infarction due to thrombosis of bilateral vertebral arteries
I63.019 Cerebral infarction due to thrombosis of unspecified vertebral artery
I63.02 Cerebral infarction due to thrombosis of basilar artery
I63.03 Cerebral infarction due to thrombosis of carotid artery
I63.031 Cerebral infarction due to thrombosis of right carotid artery

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.