Evidence Checklist: Diabetes Insipidus

Endocrinology or neurology evaluation and treatment recordsCritical

Records documenting type (central vs. nephrogenic), cause (TBI, surgery, sarcoidosis), and desmopressin management.

Nexus opinion linking DI to service (e.g., TBI, in-service head injury)Critical

Medical opinion connecting central DI to in-service traumatic brain injury, surgery, or infiltrative disease acquired during service.

Water deprivation test and vasopressin response resultsCritical

The definitive diagnostic test for diabetes insipidus documenting inability to concentrate urine and response (or lack thereof) to desmopressin.

Brain MRI (if central DI) documenting pituitary/hypothalamic pathology

MRI findings relevant to central diabetes insipidus, such as absence of posterior pituitary bright spot.

Buddy statement from spouse, family, or fellow service member

A written statement from someone who can describe observable symptoms and how your condition affects daily life.

Personal statement describing symptoms and functional impact

Your own written account of how this condition affects your daily activities, work, and relationships. Describe your worst days.

Service treatment records (STRs)Critical

Military medical records showing in-service treatment, complaints, or injuries related to this condition.