disease has basis in dysfunction of CFH hereditary nephritis complement factor H deficiency CFHD Cfh deficiency ICD9:279.8 MESH:C562875 MONDO:0012350 OMIM:609814 SCTID:234622003 complement factor H deficiency factor H deficiency atypical hemolytic-uremic syndrome non-immunoglobulin-mediated membranoproliferative glomerulonephritis