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I63.89
ICD-10-CM
Lacunar Stroke

Understand lacunar stroke diagnosis, clinical features, and ICD-10 codes. Find information on lacunar stroke treatment, management, and prognosis. Learn about lacunar stroke symptoms, risk factors, and prevention. Explore resources for healthcare professionals on documenting lacunar infarcts and related cerebrovascular diseases in medical records. This resource covers small vessel disease, white matter disease, and the impact of lacunar strokes on cognitive function.

Also known as

Lacunar Infarction
Small Vessel Stroke

Diagnosis Snapshot

Key Facts
  • Definition : Small stroke due to blocked small artery deep in the brain.
  • Clinical Signs : Sudden weakness, numbness, or difficulty with speech or balance. Symptoms vary.
  • Common Settings : Emergency room, stroke unit, inpatient rehabilitation.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC I63.89 Coding
I63.0-I63.9

Cerebral infarction

Covers specific types of cerebral infarction, including lacunar strokes.

I60-I69

Cerebrovascular diseases

Encompasses various cerebrovascular conditions, including lacunar stroke.

I61.0-I61.9

Intracerebral hemorrhage

While not lacunar, addresses bleeding within the brain, differentiating stroke types.

G45-G46

Transient cerebral ischemic attacks and related syndromes

Covers temporary blockage of brain blood flow, sometimes preceding lacunar strokes.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the stroke lacunar (small vessel occlusion)?

  • Yes

    Is the lacunar stroke acute?

  • No

    Do NOT code as lacunar stroke. Review documentation for alternative diagnosis.

Code Comparison

Related Codes Comparison

When to use each related code

Description
Small deep brain infarct
Ischemic stroke
Transient ischemic attack (TIA)

Documentation Best Practices

Documentation Checklist
  • Lacunar stroke diagnosis documentation: ICD-10 I65, I63
  • Confirm lacunar syndrome (pure motor, etc.)
  • Document lesion size <15mm on MRI/CT imaging
  • Exclude other stroke causes (e.g., cardioembolism)
  • Specify neurological deficits and onset time

Coding and Audit Risks

Common Risks
  • Unspecified Lacunar Site

    Coding I65.9 lacks specificity, impacting quality reporting and reimbursement. CDI should clarify location for accurate I65.0-I65.8 codes.

  • Miscoded as Ischemic Stroke

    Using I63.9 for lacunar strokes leads to over-reporting of major strokes, skewing stroke metrics and resource allocation.

  • Image Documentation Discrepancy

    Lacunar diagnosis without confirmatory imaging (MRI preferred) raises audit risk. CDI should query physicians for documentation clarity.

Mitigation Tips

Best Practices
  • Document precise lacunar stroke subtype (ICD-10 I63.xx)
  • Detailed neuro exam for accurate deficit assessment (CDI)
  • Timely brain imaging (MRI preferred) for confirmation
  • Control vascular risk factors (HTN, DM) for compliance
  • Accurate medication reconciliation prevents adverse events

Clinical Decision Support

Checklist
  • 1. Pure motor/sensory/ataxic/sensorimotor stroke symptoms (ICD-10 I65.x)
  • 2. Absence of cortical signs (aphasia, agnosia, neglect)
  • 3. Small, deep infarct on MRI (confirm lacunar location)
  • 4. Rule out other stroke mimics (e.g., hypoglycemia, migraine)

Reimbursement and Quality Metrics

Impact Summary
  • Lacunar Stroke Reimbursement: Coding accuracy impacts DRG assignment and payment.
  • Quality Metrics Impact: Lacunar Stroke affects stroke care measures (e.g., tPA administration).
  • Coding ICD-10 I65 impacts hospital reporting on stroke severity and outcomes.
  • Accurate coding improves risk adjustment and value-based care reimbursement.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code I63.xx for lacunar stroke
  • Document specific artery
  • Confirm lacunar syndrome
  • Specify infarct location
  • Rule out other etiologies

Documentation Templates

Patient presents with clinical findings consistent with lacunar stroke syndrome.  Onset of symptoms occurred approximately [time] prior to presentation.  Symptoms include [list specific symptoms e.g., pure motor hemiparesis, ataxic hemiparesis, dysarthria clumsy hand syndrome, pure sensory stroke, mixed sensorimotor stroke].  Neurological examination reveals [detailed neurological exam findings including affected side, muscle strength grading, sensory deficits, presence or absence of reflexes, coordination assessment].  Patient denies [relevant negatives e.g., headache, visual disturbance, loss of consciousness].  Medical history significant for [list relevant medical history e.g., hypertension, diabetes mellitus, hyperlipidemia, atrial fibrillation, smoking]. Current medications include [list current medications].  Brain imaging (MRI brain with DWI and ADC sequences) is recommended to confirm the diagnosis of lacunar infarct and rule out other etiologies.  Initial differential diagnosis includes lacunar stroke, ischemic stroke of other subtypes, transient ischemic attack, and other neurological conditions mimicking stroke.  Blood pressure is [blood pressure reading] and heart rate is [heart rate].  Management plan includes [mention specific treatment plan e.g., blood pressure control, antiplatelet therapy with aspirin or clopidogrel, statin therapy for secondary stroke prevention, assessment for modifiable risk factors, referral to neurology, physical therapy, occupational therapy, speech therapy as needed]. Patient education provided regarding stroke risk factors, symptoms, and importance of medication adherence.  Follow-up scheduled with neurology in [duration] to reassess clinical status and adjust management as necessary.  ICD-10 code I63.8 (Other lacunar infarction) is considered pending imaging confirmation.
Lacunar Stroke - AI-Powered ICD-10 Documentation