Just for general interest - because we have seen occasional mentions of Diabetes Insipidus over the years.
Diabetes Insipidus (DI) has undergone a terminology change.
Central DI: Arginine Vasopressin Deficiency or AVP-D
Nephrogenic DI: Arginine Vasopressin Resistance or AVP-R
The obvious reason is to reduce the opening for confusion with diabetes mellitus.
(Can't help hoping that Pernicious Anaemia get sensibly renamed - that name causes no end of confusion.)