ICD10BillableValid for clinical use

ICD-10 Code E23.2: Diabetes insipidus

E23.2 is a billable ICD-10 diagnosis code used to classify Diabetes insipidus in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

When is it used?

  • May be used when a clinician documents diabetes insipidus in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E20-E35Disorders of other endocrine glands
category
E23Hypofunction and other disorders of the pituitary gland
currentE23

Official coding notes

Excludes1 (do not code together)
  • nephrogenic diabetes insipidus (N25.1)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

EndocrinologistGeneral Physician

Coverage-related procedures and services

CPT 70460high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITH CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70450high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITHOUT CONTRAST MATERIAL
Source: CMS coverage guidance
CPT 70470high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITHOUT CONTRAST MATERIAL, FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SECTIONS
Source: CMS coverage guidance
CPT 36222high
SELECTIVE CATHETER PLACEMENT, COMMON CAROTID OR INNOMINATE ARTERY, UNILATERAL, ANY APPROACH, WITH ANGIOGRAPHY OF THE IPSILATERAL EXTRACRANIAL CAROTID CIRCULATION AND ALL ASSOCIATED RADIOLOGICAL SUPERVISION AND INTERPRETATION, INCLUDES ANGIOGRAPHY OF THE CERVICOCEREBRAL ARCH, WHEN PERFORMED
Source: CMS coverage guidance
CPT 36223high
SELECTIVE CATHETER PLACEMENT, COMMON CAROTID OR INNOMINATE ARTERY, UNILATERAL, ANY APPROACH, WITH ANGIOGRAPHY OF THE IPSILATERAL INTRACRANIAL CAROTID CIRCULATION AND ALL ASSOCIATED RADIOLOGICAL SUPERVISION AND INTERPRETATION, INCLUDES ANGIOGRAPHY OF THE EXTRACRANIAL CAROTID AND CERVICOCEREBRAL ARCH, WHEN PERFORMED
Source: CMS coverage guidance
CPT 36228high
SELECTIVE CATHETER PLACEMENT, EACH INTRACRANIAL BRANCH OF THE INTERNAL CAROTID OR VERTEBRAL ARTERIES, UNILATERAL, WITH ANGIOGRAPHY OF THE SELECTED VESSEL CIRCULATION AND ALL ASSOCIATED RADIOLOGICAL SUPERVISION AND INTERPRETATION (EG, MIDDLE CEREBRAL ARTERY, POSTERIOR INFERIOR CEREBELLAR ARTERY) (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
E23.2

Common synonyms

Diabetes insipidus

Frequently asked questions

Code details

CodeE23.2
SystemICD10
Display nameDiabetes insipidus
ChapterEndocrine, nutritional and metabolic diseases (E00-E89)
BlockDisorders of other endocrine glands

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Deficiency, deficientDeficiency, deficientDiabetes, diabetic(mellitus) (sugar)Diabetes, diabetic(mellitus) (sugar)HyposecretionHyposecretionInappropriatePerversion, perverted

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code E23.2 for Diabetes insipidus | HealthAssure