ICD-11 definition : Arachnoiditis is a chronic inflammation of the arachnoid layer of the meninges, of
which adhesive arachnoiditis is the most severe form, characterized by debilitating,
intractable neurogenic back and limb pain and a range of other neurological problems.;
Arachnoiditis is a chronic inflammation of the arachnoid layer of the meninges, of
which adhesive arachnoiditis is the most severe form, characterized by debilitating,
intractable neurogenic back and limb pain and a range of other neurological problems.