Alphabetical Index

Use the alphabetical index for the main term hyperfunction to review the available sub terms and properly select the ICD-10 code with the highest degree of specificity. Instructional notations will guide the coder with information such as "see", "see also", "with", "without", "due to", and "code by site".

  • Hyperfunction
    • adrenal cortex, not associated with Cushing's syndrome - E27.0 Other adrenocortical overactivity
      • medulla - E27.5 Adrenomedullary hyperfunction
        • adrenomedullary - E27.5 Adrenomedullary hyperfunction
      • virilism - E25.9 Adrenogenital disorder, unspecified
        • congenital - E25.0 Congenital adrenogenital disorders associated with enzyme deficiency
    • ovarian - E28.8 Other ovarian dysfunction
    • pancreas - K86.89 Other specified diseases of pancreas
    • parathyroid (gland) - E21.3 Hyperparathyroidism, unspecified
    • pituitary (gland) (anterior) - E22.9 Hyperfunction of pituitary gland, unspecified
      • specified NEC - E22.8 Other hyperfunction of pituitary gland
    • polyglandular - E31.1 Polyglandular hyperfunction
    • testicular - E29.0 Testicular hyperfunction

Clinical Terms

The following are some of the clinical term definitions related or applicable to hyperfunction within the ICD-10 index for Diseases and Injuries.

Pancreas: A nodular organ in the ABDOMEN that contains a mixture of ENDOCRINE GLANDS and EXOCRINE GLANDS. The small endocrine portion consists of the ISLETS OF LANGERHANS secreting a number of hormones into the blood stream. The large exocrine portion (EXOCRINE PANCREAS) is a compound acinar gland that secretes several digestive enzymes into the pancreatic ductal system that empties into the DUODENUM.

Virilism: Development of male secondary SEX CHARACTERISTICS in the FEMALE. It is due to the effects of androgenic metabolites of precursors from endogenous or exogenous sources, such as ADRENAL GLANDS or therapeutic drugs.