E23.2 – Diabetes insipidus

ICD-10-CM 2027 diagnosis code · Disorders of other endocrine glands

Billable code

ICD-10-CM code E23.2

Code: E23.2 (claims format: E232)
Description: Diabetes insipidus
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: E20-E35 Disorders of other endocrine glands
Parent codes: E23

Notes for E23.2

Excludes1 (not coded here):

nephrogenic diabetes insipidus (N25.1)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

E23 – Hypofunction and other disorders of the pituitary gland

Includes:

the listed conditions whether the disorder is in the pituitary or the hypothalamus

Excludes1 (not coded here):

postprocedural hypopituitarism (E89.3)
short stature due to endocrine disorder (E34.3-)

Block E20-E35

Excludes1 (not coded here):

galactorrhea (N64.3)
gynecomastia (N62)

Index terms for E23.2

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in E23

E23.0 – HypopituitarismBillable
E23.1 – Drug-induced hypopituitarismBillable
E23.3 – Hypothalamic dysfunction, not elsewhere classifiedBillable
E23.6 – Other disorders of pituitary glandBillable
E23.7 – Disorder of pituitary gland, unspecifiedBillable

Frequently asked questions

What is ICD-10 code E23.2?

E23.2 is the ICD-10-CM code for diabetes insipidus, in the block E20-E35 (Disorders of other endocrine glands).

Is E23.2 a billable code?

Yes. E23.2 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does E23.2 belong to?

It belongs to category E23 – Hypofunction and other disorders of the pituitary gland.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.