ICD-10-CM Billable Code

G35.C0

Secondary progressive multiple sclerosis, unspecified

Clinical Classification Guidelines

Medical Intelligence & Overview

Secondary progressive multiple sclerosis (SPMS) is a stage of multiple sclerosis (MS), a chronic neurological disorder that affects the central nervous system. Characterized by a gradual worsening of neurological function over time, SPMS often follows an initial relapsing-remitting phase. This stage involves steady progression of disability, with fewer distinct attacks or relapses. The ICD-10 code G35.C0 specifically refers to cases where secondary progressive MS is diagnosed but without further specification.

Causes & Symptoms

Clinical Causes: Genetic predisposition: Family history may increase risk. Immune system dysfunction: Abnormal immune responses attack nerve fibers and myelin. Environmental factors: Low vitamin D levels, smoking, and certain infections could contribute. Initial relapsing-remitting phase: Transition from this pattern to progressive decline over time.

Key Symptoms: Gradual worsening of neurological functions Increased weakness or numbness in limbs Trouble with coordination and balance Blurred or double vision Problems with bladder or bowel control Chronic fatigue Cognitive changes such as difficulty concentrating Spasticity or muscle stiffness

Diagnostic & Treatment

Diagnosis Path: Diagnosis of secondary progressive MS involves a combination of neurological examinations, medical history, and imaging tests. Magnetic resonance imaging (MRI) is crucial in detecting lesions in the brain and spinal cord. Neurologists may also perform evoked potentials, cerebrospinal fluid analysis, and other assessments to monitor disease progression. Since SPMS involves a steady decline, tracking symptoms over time is essential for diagnosis. It is important to distinguish it from other forms of MS and neurological diseases.

Treatment Protocols: Disease-modifying therapies (DMTs): Certain medications may help delay progression. Symptom management: Medications, physical therapy, and occupational therapy to reduce spasticity, pain, and fatigue. Rehabilitation: Programs designed to improve mobility, strength, and daily functioning. Lifestyle adjustments: Regular exercise, balanced diet, and avoiding triggers that may exacerbate symptoms. Supportive care: Psychological support, counseling, and community resources to address emotional and social needs.

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 G35.C0 a billable ICD-10 code?
Yes, G35.C0 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report G35.C0?
Clinical documentation must specify the nature of Secondary progressive multiple sclerosis, unspecified and any associated comorbidities for accurate reporting.

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