Expanded Disability Status Scale

The Kurtzke Expanded Disability Status Scale (EDSS) is a method of quantifying disability in multiple sclerosis. The scale has been developed by John F. Kurtzke. An online EDSS calculator is available. The EDSS is based on a neurological examination by a clinician, however a number of versions have been developed which enable patient self-administration. The Kurtzke Expanded Disability Status Scale (EDSS) is a method of quantifying disability in multiple sclerosis. The scale has been developed by John F. Kurtzke. An online EDSS calculator is available. The EDSS is based on a neurological examination by a clinician, however a number of versions have been developed which enable patient self-administration.