ICD-10 Diagnosis Code E22

Hyperfunction of pituitary gland

Diagnosis Code E22

ICD-10: E22
Short Description: Hyperfunction of pituitary gland
Long Description: Hyperfunction of pituitary gland
This is the 2018 version of the ICD-10-CM diagnosis code E22

Not Valid for Submission
The code E22 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Endocrine, nutritional and metabolic diseases (E00–E90)
    • Disorders of other endocrine glands (E20-E35)
      • Hyperfunction of pituitary gland (E22)

Information for Patients


Pituitary Disorders

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.

  • ACTH (cosyntropin) stimulation test (Medical Encyclopedia)
  • ACTH blood test (Medical Encyclopedia)
  • Empty sella syndrome (Medical Encyclopedia)
  • Follicle-stimulating hormone (FSH) blood test (Medical Encyclopedia)
  • Gigantism (Medical Encyclopedia)
  • Growth hormone stimulation test (Medical Encyclopedia)
  • Hypopituitarism (Medical Encyclopedia)
  • Luteinizing hormone (LH) blood test (Medical Encyclopedia)
  • Pituitary infarction (Medical Encyclopedia)


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