2021 ICD-10-CM Diagnosis Code I63.4

Cerebral infarction due to embolism of cerebral arteries

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • I63.4 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM I63.4 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of I63.4 - other international versions of ICD-10 I63.4 may differ.
The following code(s) above I63.4 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 I63.4:
  • I00-I99
    2021 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
    2021 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
  • I63
    ICD-10-CM Diagnosis Code I63

    Cerebral infarction

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction
    Type 1 Excludes
    • neonatal cerebral infarction (P91.82-)
    Type 2 Excludes
    • sequelae of cerebral infarction (I69.3-)
    Use Additional
    • 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)
    Cerebral 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to I63.4:
  • Disease, diseased - see also Syndrome
    • cerebrovascular I67.9
      ICD-10-CM Diagnosis Code I67.9

      Cerebrovascular disease, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • acute I67.89
        ICD-10-CM Diagnosis Code I67.89

        Other cerebrovascular disease

          2016 2017 2018 2019 2020 2021 Billable/Specific Code
        • embolic I63.4-
  • Hemiplegia G81.9-
    ICD-10-CM Diagnosis Code G81.9-

    Hemiplegia, unspecified

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    • embolic I63.4- (current episode)
  • Infarct, infarction
  • Monoplegia G83.3-
    ICD-10-CM Diagnosis Code G83.3-

    Monoplegia, unspecified

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    • embolic I63.4- (current episode)
  • Occlusion, occluded
    • artery I70.9
      - see also Atherosclerosis, artery
      ICD-10-CM Diagnosis Code I70.9

      Other and unspecified atherosclerosis

        2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
      • brain or cerebral I66.9
        ICD-10-CM Diagnosis Code I66.9

        Occlusion and stenosis of unspecified cerebral artery

          2016 2017 2018 2019 2020 2021 Billable/Specific Code
        • with infarction (due to) I63.5-
          ICD-10-CM Diagnosis Code I63.5-

          Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries

            2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
          • embolism I63.4-
      • cerebral I66.9
        ICD-10-CM Diagnosis Code I66.9

        Occlusion and stenosis of unspecified cerebral artery

          2016 2017 2018 2019 2020 2021 Billable/Specific Code
        • specified NEC I66.8
          ICD-10-CM Diagnosis Code I66.8

          Occlusion and stenosis of other cerebral arteries

            2016 2017 2018 2019 2020 2021 Billable/Specific Code
          Applicable To
          • Occlusion and stenosis of perforating arteries
          • with infarction I63.59
            ICD-10-CM Diagnosis Code I63.59

            Cerebral infarction due to unspecified occlusion or stenosis of other cerebral artery

              2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • Paralysis, paralytic (complete) (incomplete) G83.9
    ICD-10-CM Diagnosis Code G83.9

    Paralytic syndrome, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • embolic I63.4- (current episode)
  • Quadriplegia G82.50
    ICD-10-CM Diagnosis Code G82.50

    Quadriplegia, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • embolic I63.4- (current episode)
  • Softening
    • brain (necrotic) (progressive) G93.89
      ICD-10-CM Diagnosis Code G93.89

      Other specified disorders of brain

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Postradiation encephalopathy
      • embolic I63.4-

ICD-10-CM Codes Adjacent To I63.4
I63.331 Cerebral infarction due to thrombosis of right posterior cerebral artery
I63.332 Cerebral infarction due to thrombosis of left posterior cerebral artery
I63.333 Cerebral infarction due to thrombosis of bilateral posterior cerebral arteries
I63.339 Cerebral infarction due to thrombosis of unspecified posterior cerebral artery
I63.34 Cerebral infarction due to thrombosis of cerebellar artery
I63.341 Cerebral infarction due to thrombosis of right cerebellar artery
I63.342 Cerebral infarction due to thrombosis of left cerebellar artery
I63.343 Cerebral infarction due to thrombosis of bilateral cerebellar arteries
I63.349 Cerebral infarction due to thrombosis of unspecified cerebellar artery
I63.39 Cerebral infarction due to thrombosis of other cerebral artery
I63.4 Cerebral infarction due to embolism of cerebral arteries
I63.40 Cerebral infarction due to embolism of unspecified cerebral artery
I63.41 Cerebral infarction due to embolism of middle cerebral artery
I63.411 Cerebral infarction due to embolism of right middle cerebral artery
I63.412 Cerebral infarction due to embolism of left middle cerebral artery
I63.413 Cerebral infarction due to embolism of bilateral middle cerebral arteries
I63.419 Cerebral infarction due to embolism of unspecified middle cerebral artery
I63.42 Cerebral infarction due to embolism of anterior cerebral artery
I63.421 Cerebral infarction due to embolism of right anterior cerebral artery
I63.422 Cerebral infarction due to embolism of left anterior cerebral artery
I63.423 Cerebral infarction due to embolism of bilateral anterior cerebral arteries

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