medcodeid,observations,originalreadcode,cleansedreadcode,snomedctconceptid,snomedctdescriptionid,term 25807010,9000,F4811,F481100,15203004,25807010,sudden visual loss 253067011,40000,1B76,1B76.00,162279009,253067011,temporary visual disturbance 298170019,3000,F4814,F481400,36994005,61717016,transient visual loss 3930491000006117,10,^ESCTTR393049,,88032003,507858010,transient monocular blindness 13678421000006117,1,^ESCT1367842,,331921000119103,3770683013,sudden visual loss of right eye 3956480011,1,^ESCT1398843,,337411000119105,3956480011,transient visual loss of left eye 399455016,50000,F49z,F49z.00,240311000000103,390341000000115,visual loss nos 515791000006112,40000,F49,F49..00,397540003,3011990016,blindness and low vision 515811000006111,10000,F490,F490.00,193699007,298251016,blindness - both eyes 1816041000006111,500,F49A,F49A.00,22950006,38553019,"blindness, monocular" 2168181000000116,800,F497,F497.00,813871000000108,2168181000000110,"severe visual impairment, binocular" 2.168191000000119,100,F49B,F49B.00,813881000000105,2168191000000110,"severe visual impairment, monocular" 412105000006114,2,^ESCTBL412105,,105597003,599301000000111,blindness 6026841000006111,8,^ESCTFU602684,,313165001,457021013,functional visual loss 6588751000006112,100,^ESCTSE658875,,397541004,1777163010,severe visual impairment 6969261000006116,9,^ESCTUN696926,,421293001,2618271019,unexplained visual loss 8262581000006110,100,^ESCTSE826258,,813871000000108,2121891000000110,severe binocular visual impairment 8262581000006117,20,^ESCTSE826260,,813881000000105,2121911000000110,severe monocular visual impairment