E23.0 – Hypopituitarism
ICD-10-CM 2027 diagnosis code · Disorders of other endocrine glands
ICD-10-CM code
E23.0
- Code
E23.0(claims format:E230)- Description
- Hypopituitarism
- 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 E23.0
Applicable to:
- Fertile eunuch syndrome
- Hypogonadotropic hypogonadism
- Idiopathic growth hormone deficiency
- Isolated deficiency of gonadotropin
- Isolated deficiency of growth hormone
- Isolated deficiency of pituitary hormone
- Kallmann's syndrome
- Lorain-Levi short stature
- Necrosis of pituitary gland (postpartum)
- Panhypopituitarism
- Pituitary cachexia
- Pituitary insufficiency NOS
- Pituitary short stature
- Sheehan's syndrome
- Simmonds' disease
Use additional code:
- code, if applicable, for associated cachexia (E88.A)
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):
Block E20-E35
Index terms for E23.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Lorain
- Hypopituitarism
- Dwarfism, Lorain
- Panhypopituitarism
- Kallmann's syndrome
- Dwarfism, pituitary
- Hyposecretion, ACTH
- Cachexia, Simmonds'
- Cachexia, pituitary
- Syndrome, infantilism
- Dwarfism, hypophyseal
- Cachexia, hypophyseal
- Hypogonadism, pituitary
- Cachexia, hypopituitary
- Hypofunction, pituitary
- Fertile eunuch syndrome
- Syndrome, fertile eunuch
- Syndrome, hypopituitarism
- Myopathy, in, hypopituitarism
- Necrosis, necrotic, pituitary
- Sheehan's disease or syndrome
- Simmonds' cachexia or disease
- Decrease, function, pituitary
- Ahumada-del Castillo syndrome
- Eunuchoidism, hypogonadotropic
Related codes in E23
Frequently asked questions
What is ICD-10 code E23.0?
E23.0 is the ICD-10-CM code for hypopituitarism, in the block E20-E35 (Disorders of other endocrine glands).
Is E23.0 a billable code?
Yes. E23.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does E23.0 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.