Source:http://linkedlifedata.com/resource/umls/id/C0013578
MSH: Infestations by PARASITES which live on, or burrow into, the surface of their host's EPIDERMIS. Most ectoparasites are ARTHROPODS.,CSP: infestations by parasites which live on the outside of the body of the host such as mange or myiasis, also infestation of ticks, lice or mites.