diagnosed is a form of:

Diagnose



verb
1.
(វេជ្ជសាស្ត្រ) (TRANSITIVE) ~ something (as something) (to make a diagnosis find out or identify by examining) ធ្វើរោគវិនិច្ឆយ
Example: To diagnose a disease; to diagnose a pupil's emotional troubles; to business conditions.
2.
(វេជ្ជសាស្ត្រ) ពិគ្រោះ, ពិចារណា, ធ្វើរោគវិនិច្ឆ័យ