E23
ICD-10Non-billable categoryHypofunction and other disorders of the pituitary gland
Official ICD-10-CM descriptor (FY2026)
Hypofunction and other disorders of the pituitary gland
E23 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- the listed conditions whether the disorder is in the pituitary or the hypothalamus
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- postprocedural hypopituitarism (E89.3)
- short stature due to endocrine disorder (E34.3-)
More specific codes under E23
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.