Medulloadrenal hyperfunction

This code describes the overactivity of both the adrenal medulla and cortex, leading to excessive production of hormones such as catecholamines (from the medulla) and corticosteroids (from the cortex). This combined hyperfunction can manifest with symptoms related to both Cushing's syndrome and pheochromocytoma, though often in a less distinct or overlapping manner.

Use this code when documentation clearly indicates hyperfunction involving both the adrenal medulla and cortex. This may be supported by laboratory findings showing elevated levels of both cortisol and catecholamines or their metabolites, along with imaging studies confirming adrenal hyperplasia or tumors affecting both regions.

• Ensure documentation specifies involvement of both the medulla and cortex; otherwise, consider separate codes for adrenal cortical hyperfunction (e.g., Cushing's syndrome) or medullary hyperfunction (e.g., pheochromocytoma).
• Review the medical record for specific etiologies (e.g., adenoma, hyperplasia) which may require additional coding.
• Do not use this code if only one part of the adrenal gland is hyperfunctioning.