" The term “myalgic encephalomyelitis” (muscle pain, “myalgic”, with “encephalomyelitis” inflammation of the brain and spinal cord) was first included by the World Health Organization (WHO) in their International Classification of Diseases in 1969. It is ironic that Donald Acheson, who subsequently became the Chief Medical Officer first coined the name in 1956.8

In 1978 the Royal Society of Medicine accepted ME as a nosological organic entity.9 The current version of the International Classification of Diseases—ICD‐10, lists myalgic encephalomyelitis under G.93.3—neurological conditions. It cannot be emphasised too strongly that this recognition emerged from meticulous clinical observation and examination. "

― Malcolm Hooper