Diagnostically

American Journal of Psychiatry, 165 (5) Most outcome research is carried out using time-limited therapy with diagnostically homogenous groups.

Or lossy compressed images may be 'visually lossless', or in the case of medical images, so-called Diagnostically Acceptable Irreversible Compression (DAIC) citation may have been applied.

The histological slides are then interpreted diagnostically and the resulting pathology report describes the histological findings and the opinion of the pathologist.