Disclosed is a method of providing diagnostic related information for medical data, performed by one or more processors of a computing device. The method may include: calculating first diagnosis information on input medical data by using a first diagnosis network trained to output diagnosis information based on the medical data; calculating second diagnosis information on the input medical data by using a second diagnosis network trained to output diagnosis information based on a feature vector for the medical data calculated in the first diagnosis network, wherein the feature vector is calculated based on a feature map derived from a calculation process of the first diagnosis network; and generating correlation information comprising the first diagnosis information and the second diagnosis information calculated on the input medical data, based on a part of a calculation process of the first diagnosis network or a calculation process of the second diagnosis network.