Diabetes insipidus

This code represents diabetes insipidus, a rare disorder characterized by excessive thirst (polydipsia) and excessive urination (polyuria) due to a deficiency of antidiuretic hormone (ADH) or the kidney's inability to respond to ADH. It results in the kidneys passing large volumes of dilute urine, leading to dehydration if fluid intake is not maintained.

Use this code when documentation clearly indicates a diagnosis of diabetes insipidus, whether central (neurogenic) or nephrogenic. This diagnosis is typically supported by clinical symptoms, laboratory findings (e.g., elevated serum osmolality, low urine osmolality), and results from water deprivation tests or ADH stimulation tests.

• Differentiate carefully between diabetes insipidus and diabetes mellitus; they are distinct conditions with different etiologies and treatments.
• Ensure documentation specifies the type of diabetes insipidus (e.g., central, nephrogenic) if known, though this code does not differentiate.
• Do not confuse with psychogenic polydipsia, which is a behavioral condition, not a hormonal disorder.