Multiple sclerosis

This code represents multiple sclerosis (MS), a chronic, progressive, autoimmune disease affecting the central nervous system. It is characterized by demyelination and axonal damage, leading to a wide range of neurological symptoms.

Use this code when documentation clearly indicates a diagnosis of multiple sclerosis. This diagnosis is typically established through neurological examination, MRI findings, and cerebrospinal fluid analysis. It applies to all forms of MS, including relapsing-remitting, primary progressive, secondary progressive, and progressive-relapsing.

• Do not use this code for suspected MS or symptoms that could be indicative of MS without a definitive diagnosis.
• Be sure to code any associated neurological manifestations or complications separately, such as ataxia, spasticity, or visual disturbances.
• Consider sequencing this code as the primary diagnosis when MS is the reason for the encounter or hospitalization.