2021 ICD-10-CM Diagnosis Code I63.34

Cerebral infarction due to thrombosis of cerebellar artery

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • I63.34 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 I63.34 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of I63.34 - other international versions of ICD-10 I63.34 may differ.
The following code(s) above I63.34 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 I63.34:
  • 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 I63.34:
  • 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
      • cerebellar (anterior inferior) (posterior inferior) (superior) I66.3
        ICD-10-CM Diagnosis Code I66.3

        Occlusion and stenosis of cerebellar arteries

          2016 2017 2018 2019 2020 2021 Billable/Specific Code
        • with infarction I63.54-
          ICD-10-CM Diagnosis Code I63.54-

          Cerebral infarction due to unspecified occlusion or stenosis of cerebellar artery

            2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

ICD-10-CM Codes Adjacent To I63.34
I63.32 Cerebral infarction due to thrombosis of anterior cerebral artery
I63.321 Cerebral infarction due to thrombosis of right anterior cerebral artery
I63.322 Cerebral infarction due to thrombosis of left anterior cerebral artery
I63.323 Cerebral infarction due to thrombosis of bilateral anterior cerebral arteries
I63.329 Cerebral infarction due to thrombosis of unspecified anterior cerebral artery
I63.33 Cerebral infarction due to thrombosis of posterior cerebral artery
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

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