ICD-11 definition : Multiple Sclerosis is a chronic, inflammatory demyelinating disease of the central
nervous system. Three categories of multiple sclerosis have been outlined: Relapsing/remitting,
secondary progressive and primary progressive multiple sclerosis;
Multiple Sclerosis is a chronic, inflammatory demyelinating disease of the central
nervous system. Three categories of multiple sclerosis have been outlined: Relapsing/remitting,
secondary progressive and primary progressive multiple sclerosis