CPT® Code 89235

Deleted

The water load test, designated by CPT® Code 89235, is a diagnostic procedure utilized to assess the body's ability to manage fluid balance. During this test, the patient is required to ingest a specific volume of water, calculated at 20-25 milliliters per kilogram of their body weight. This ingestion of water serves to challenge the kidneys' ability to excrete excess fluid. Following the water intake, urine output is meticulously measured to evaluate how effectively the body is processing and eliminating the ingested fluid. A key focus of this test is to identify conditions such as inappropriate antidiuretic hormone (ADH) syndrome, where the body may retain water excessively, leading to potential complications. The results of the water load test can provide critical insights into the patient's renal function and fluid regulation mechanisms, aiding healthcare professionals in diagnosing and managing various medical conditions related to fluid imbalance.