They are both very vague medical diagnoses that the doctor most likely used in lieu of using symptoms as a diagnosis. The doctors know that the medical coders, who have to code the diagnoses and bill the patient's insurance company, don't like them to use symptoms as the patient's diagnosis. So instead, doctors will put down these vague, kind of bogus diagnoses for lack of something better to use because the billers need a medical diagnosis. (I've been a coder since I left clinical nursing and checked the ICD-9 codes on these. They both code to the same code number which is unusual and it is a very nonspecific medical diagnosis code which means that if the billers end up having to use these as this patient's final diagnoses, the hospital is probably going to have problems getting paid because the insurance company is likely to deny payment.) You are very unlikely to find many, if any, medical resources to list any definitive signs and symptoms of either one of these two conditions. You should be looking at the symptoms from the history and physical and the past medical history to help you figure out exactly what the doctor has based these diagnoses on since all medical diagnoses are based on the signs and symptoms the doctor observed during his assessment process. This should all have been documented. Hope you took the time to read these documents and copy the information down. Then, you can back into them by saying that renal insufficiency is a condition where the patient has XXXXX and list the symptoms the doctor listed.
I know from your previous questions that you like specific answers, but I don't think you're going to be able to get one for this. However, keep looking, but I very much doubt that you're going to find a medical reference that is going to help you here. If you know a physician, you might ask them what their opinion is on this.
You got a bum deal on this patient's medical diagnoses for your care plan, kiddo.