E23.2

Billable

Diabetes insipidus

HCC Category Mapping

V24HCC 23 — Other Significant Endocrine and Metabolic Disorders

0.230

ESRDHCC 23 — Other Significant Endocrine and Metabolic Disorders

0.000

RxHCCHCC 43 — Other Significant Endocrine and Metabolic Disorders

0.000

What This Code Means

A condition where the pituitary gland fails to produce adequate antidiuretic hormone (ADH), causing excessive urination and thirst due to the kidneys' inability to concentrate urine.

Coding Tips

•Distinguish between central diabetes insipidus (pituitary origin) and nephrogenic diabetes insipidus (kidney origin); this code applies to central type
•Document the underlying cause if known (tumor, surgery, trauma, idiopathic) as it may affect treatment and prognosis

Clinical Significance

Diabetes insipidus is characterized by the kidney's inability to concentrate urine, resulting in massive polyuria (up to 20 liters per day) and compensatory polydipsia. Central diabetes insipidus results from deficient antidiuretic hormone production, while nephrogenic forms result from renal resistance to antidiuretic hormone.

Documentation Requirements

✓Document the type (central vs nephrogenic), underlying etiology (tumor, surgery, trauma, genetic, medication-induced), water deprivation test results, urine and serum osmolality, daily urine output, and treatment (desmopressin for central type, thiazides for nephrogenic).

Excludes 1 — Do NOT code together

nephrogenic diabetes insipidus (N25.1)

Commonly Confused Codes

E22.2 (syndrome of inappropriate antidiuretic hormone, the opposite condition with excess antidiuretic hormone), N25.1 (nephrogenic diabetes insipidus which is kidney-based), E10-E13 (diabetes mellitus, a completely different disease despite the similar name).

Code Hierarchy

└E23Hypofunction and other disorders of the pituitary gland └E23.2Diabetes insipidus

└E23.2Diabetes insipidus