Underactive pituitary gland
Also known as: Other specified hypofunction or disorders of pituitary gland
General information only. Anpheros does not diagnose and does not recommend treatment. Talk to a doctor or pharmacist about your situation. In an emergency, call 112 (or your local emergency number).
In short
The pituitary gland is a pea-sized gland at the base of the brain that acts as the "master control gland" by making hormones that affect growth and the functions of other glands in the body. With pituitary disorders, there is often too much or too little of one of these hormones. Injuries can cause pituitary disorders, but the most common cause is a pituitary tumor.
Source: MedlinePlus, National Library of Medicine.
AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.
Codes
Description
Your pituitary gland is a pea-sized gland at the base of your brain. The pituitary is the "master control gland" - it makes hormones that affect growth and the functions of other glands in the body.
With pituitary disorders, you often have too much or too little of one of your hormones. Injuries can cause pituitary disorders, but the most common cause is a pituitary tumor.
Next to it in ICD-10
- E20Hypoparathyroidism, unspecified
- E21Hyperparathyroidism
- E22Overactive pituitary gland
- E24Cushing syndrome, unspecified
- E25Adrenogenital disorders (congenital adrenal hyperplasia)
- E26Hyperaldosteronism, unspecified
Neighbouring codes in the classification, not a medical link.
External resources
Questions
What is the ICD-10 code for Underactive pituitary gland?
E23 (WHO, International Classification of Diseases, 10th Revision).
What is the ICD-11 code for Underactive pituitary gland?
5A61.Y: Other specified hypofunction or disorders of pituitary gland (WHO, ICD-11 for Mortality and Morbidity Statistics).
Sources and attribution
- ICD-11 for Mortality and Morbidity Statistics, © World Health Organization, licensed under CC BY-ND 3.0 IGO.
- Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
- Source: MedlinePlus, National Library of Medicine.
- ICD-10 codes and titles © World Health Organization. Source: WHO, International Classification of Diseases, 10th Revision (2019).
Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →
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