FIELD: medicine. SUBSTANCE: method involves additionally taking into account age, sex, height of a person. Morphologic characteristics of the tong like length, thickness, vallate papillae availability, their diameter, the number of foliate papillae to its right and left are considered as quantitative values, shape, color, clavate papillae localization and the degree the filiform papillae are pronounced, fur localization are considered as qualitative values. The qualitative values have values from 0 to 3. Their values of 1,0,0,3,1,1,1, duodenal peptic ulcer are diagnosed. The values of 2,0,0,2,2,1, gastric peptic ulcer are diagnosed. The values of 3,2,2,1,1,1, diabetes mellitus are diagnosed. The values of 2,0,0,0,2,3, chronic cholecystopancreatitis are diagnosed. EFFECT: high accuracy and reliability of diagnosis. 1 tbl
