ICD-10-CM Billable Code

R29.718

NIHSS score 18

Clinical Classification Guidelines

Medical Intelligence & Overview

An NIHSS score of 18 is a measurement used by healthcare professionals to evaluate the severity of a stroke or neurological impairment. The NIHSS, or National Institutes of Health Stroke Scale, is a standardized tool that helps determine the extent of neurological deficits caused by strokes or other brain injuries. An intermediate score like 18 indicates a moderate to severe level of impairment, which requires prompt medical attention and comprehensive management.

Causes & Symptoms

Clinical Causes: Ischemic stroke due to blood clots blocking arteries in the brain. Hemorrhagic stroke caused by bleeding in the brain. Transient ischemic attack (TIA) with persistent neurological symptoms. Brain trauma or injury resulting in neurological deficits. Brain tumors or lesions affecting neural pathways. Infections affecting the central nervous system.

Key Symptoms: Weakness or paralysis on one side of the body (hemiparesis or hemiplegia). Difficulty speaking or understanding speech (aphasia). Sudden weakness or numbness in face, arm, or leg. Problems with coordination or balance. Visual disturbances such as loss of vision or double vision. Altered level of consciousness or alertness. Difficulty swallowing or drooping facial features. Sudden severe headache, especially in hemorrhagic stroke cases.

Diagnostic & Treatment

Diagnosis Path: Neurological examination using the NIHSS to quantify impairment. Imaging studies such as CT scans or MRI to identify the type and location of stroke or brain injury. Blood tests to assess clotting factors, blood sugar levels, and underlying conditions. Additional tests as needed to evaluate cardiac sources of emboli or other risk factors.

Treatment Protocols: Emergency interventions such as thrombolytic therapy for ischemic stroke if within treatment window. Surgical procedures like hematoma evacuation for hemorrhagic stroke. Medical management of blood pressure, blood sugar, and other vital parameters. Rehabilitation therapies including physical, occupational, and speech therapy. Medication to prevent clot formation or reduce bleeding risk. Supportive care such as nutritional support and prevention of complications like pneumonia or deep vein thrombosis.

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

Clinical Advice & FAQs

Billing Guidance

Is R29.718 a billable ICD-10 code?
Yes, R29.718 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report R29.718?
Clinical documentation must specify the nature of NIHSS score 18 and any associated comorbidities for accurate reporting.

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