Sociological diagnosis is discussed in the context of methodological structuring. Diagnostics as a means of social cognition and evaluation arguably reaches its purposes if such conditions as structuration and coherency are realized. In author’s view, levels of sociological diagnostics embrace acceptance of diagnose method and interpretation of end results. Coherency as non-contradiction of sociological diagnosis levels raises probability of adequate description of diagnosed phenomenon (process) while lowering chances for outside ‘disturbing’ factors.