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  6. 2024 ICD-10-CM Code I63.9

2024 ICD-10-CM Diagnosis Code I63.9

Cerebral infarction, unspecified

ICD-10-CM Code:
I63.9
ICD-10 Code for:
Cerebral infarction, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the circulatory system
    (I00–I99)
    • Cerebrovascular diseases
      (I60-I69)
      • Cerebral infarction
        (I63)

I63.9 is a billable diagnosis code used to specify a medical diagnosis of cerebral infarction, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like I63.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute cerebrovascular insufficiency
  • Autosomal recessive leukoencephalopathy, ischemic stroke, retinitis pigmentosa syndrome
  • Brainstem stroke syndrome
  • Cerebellar infarction
  • Cerebellar stroke
  • Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy
  • Cerebral infarction
  • Cerebrovascular accident
  • Cerebrovascular accident following heart procedure
  • Cerebrovascular accident of basal ganglia
  • Cerebrovascular accident of brainstem
  • Cerebrovascular accident of medulla oblongata
  • Cerebrovascular accident with intracranial hemorrhage
  • Cerebrovascular disorder in the puerperium
  • Completed stroke
  • Cryptogenic stroke
  • CVA during surgery
  • Dementia due to hemorrhagic cerebral infarction due to hypertension
  • Diffuse cerebrovascular disease
  • Diffuse cerebrovascular disease
  • Diffuse cerebrovascular disease
  • Diffuse cerebrovascular disease
  • Diffuse cerebrovascular disease
  • Epilepsy due to cerebrovascular accident
  • Extension of cerebrovascular accident
  • Infarction of visual cortex
  • Ischemic stroke
  • Ischemic stroke without coma
  • Ischemic stroke without residual deficits
  • Left sided cerebral hemisphere cerebrovascular accident
  • Livedo reticularis
  • Multi-infarct dementia
  • Multi-infarct dementia
  • Multi-infarct dementia
  • Multi-infarct dementia with delirium
  • Multi-infarct dementia with delusions
  • Multi-infarct dementia with depression
  • Multi-infarct dementia, uncomplicated
  • Nonatherosclerotic cerbrovascular accident
  • Nonparalytic stroke
  • Occlusive stroke
  • Pediatric arterial ischemic stroke
  • Posterior cerebral circulation infarction
  • Posterior cerebral circulation infarction
  • Posterior inferior cerebellar artery syndrome
  • Progressing stroke
  • R.I.N.D. syndrome
  • Silent cerebral infarct
  • Sneddon syndrome
  • Stroke co-occurrent with migraine
  • Stroke in the puerperium
  • Stroke of uncertain pathology
  • Thrombotic stroke
  • White matter disorder co-occurrent and due to cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy

Clinical Classification

Clinical Information

  • Cerebral Infarction

    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).

  • Infarction, Middle Cerebral Artery

    necrosis occurring in the middle cerebral artery distribution system which brings blood to the entire lateral aspects of each cerebral hemisphere. clinical signs include impaired cognition; aphasia; agraphia; weak and numbness in the face and arms, contralaterally or bilaterally depending on the infarction.

  • Livedo Reticularis

    a condition characterized by a reticular or fishnet pattern on the skin of lower extremities and other parts of the body. this red and blue pattern is due to deoxygenated blood in unstable dermal blood vessels. the condition is intensified by cold exposure and relieved by rewarming.

  • Livedoid Vasculopathy

    a rare cutaneous thrombotic disease due to occlusion of dermal vessels. it is characterized by purpuric maculae and ulcerations especially during summer which form scars called atrophie blanche. it is more associated with other syndromes (e.g., protein c deficiency; hyperhomocysteinemia). livedo reticularis with systemic involvement and stroke is sneddon syndrome.

  • Sneddon Syndrome

    a systemic non-inflammatory arteriopathy primarily of middle-aged females characterized by the association of livedo reticularis, multiple thrombotic cerebral infarction; coronary disease, and hypertension. elevation of antiphospholipid antibody titers (see also antiphospholipid syndrome), cardiac valvulopathy, ischemic attack, transient; seizures; dementia; and chronic ischemia of the extremities may also occur. pathologic examination of affected arteries reveals non-inflammatory adventitial fibrosis, thrombosis, and changes in the media. (from jablonski, dictionary of syndromes & eponymic diseases, 2d ed; adams et al., principles of neurology, 6th ed, p861; arch neurol 1997 jan;54(1):53-60)

  • Thrombotic Stroke

    a type of ischemic stroke resulting from obstruction due to a blood clot formed within in a cerebral artery often associated with atherosclerosis. a stroke due to a blood clot in a cerebral vein is a venous infarction (see venous infarction, brain).

  • Ischemic Stroke

    stroke due to brain ischemia resulting in interruption or reduction of blood flow to a part of the brain. when obstruction is due to a blood clot formed within in a cerebral blood vessel it is a thrombotic stroke. when obstruction is formed elsewhere and moved to block a cerebral blood vessel (see cerebral embolism) it is referred to as embolic stroke. wake-up stroke refers to ischemic stroke occurring during sleep while cryptogenic stroke refers to ischemic stroke of unknown origin.

  • Livedo Reticularis

    a recurrent purple discoloration of the skin that does not blanche and is found in a lacy, network pattern, most often in the lower extremities. it may be aggravated by exposure to cold and is classified as idiopathic or secondary. secondary livedo reticularis may be a cutaneous manifestation of immune system disorders (e.g., lupus erythematosus, rheumatoid arthritis, cryoglobulinemia, lymphoma, etc), and hematologic disorders (polycythemia vera).

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Stroke NOS

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • transient cerebral ischemic attacks and related syndromes G45

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert I63.9 to ICD-9-CM

  • ICD-9-CM Code: 434.91 - Crbl art ocl NOS w infrc
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Ischemic Stroke

A stroke is a medical emergency. There are two types - ischemic and hemorrhagic. Ischemic stroke is the more common type. It is usually caused by a blood clot that blocks or plugs a blood vessel in the brain. This keeps blood from flowing to the brain. Within minutes, brain cells begin to die. Another cause is stenosis, or narrowing of the artery. This can happen because of atherosclerosis, a disease in which plaque builds up inside your arteries. Transient ischemic attacks (TIAs) occur when the blood supply to the brain is interrupted briefly. Having a TIA can mean you are at risk for having a more serious stroke.

Symptoms of stroke are:

  • Sudden numbness or weakness of the face, arm or leg (especially on one side of the body)
  • Sudden confusion, trouble speaking or understanding speech
  • Sudden trouble seeing in one or both eyes
  • Sudden trouble walking, dizziness, loss of balance or coordination
  • Sudden severe headache with no known cause

It is important to treat strokes as quickly as possible. Blood thinners may be used to stop a stroke while it is happening by quickly dissolving the blood clot. Post-stroke rehabilitation can help people overcome disabilities caused by stroke damage.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.