Pituitary-dependent Cushing's disease

This code represents Cushing's disease, a specific form of Cushing's syndrome caused by excessive cortisol production due to an adrenocorticotropic hormone (ACTH)-secreting pituitary adenoma. The pituitary tumor stimulates the adrenal glands to overproduce cortisol, leading to a characteristic constellation of symptoms.

Use this code when documentation clearly indicates a diagnosis of Cushing's disease, specifically identifying the pituitary gland as the source of ACTH overproduction. Supporting documentation would include imaging reports confirming a pituitary adenoma, elevated ACTH and cortisol levels, and suppression test results consistent with pituitary-dependent hypercortisolism.

• Differentiate from other causes of Cushing's syndrome (e.g., adrenal tumors, ectopic ACTH production), which have distinct codes.
• Ensure documentation specifies "pituitary-dependent" to justify this specific code.
• Consider sequencing with codes for associated manifestations or complications of Cushing's disease, such as diabetes mellitus, hypertension, or osteoporosis.