Other primary hyperaldosteronism

This code signifies a form of primary hyperaldosteronism not specifically categorized elsewhere, characterized by excessive aldosterone production from the adrenal glands independent of the renin-angiotensin system. This overproduction leads to hypertension, hypokalemia, and metabolic alkalosis.

Assign this code when documentation confirms primary hyperaldosteronism, but the specific etiology (e.g., Conn's syndrome, bilateral adrenal hyperplasia) is not explicitly stated or is atypical. It is appropriate for cases where diagnostic workup points to primary hyperaldosteronism without a more specific sub-type.

• Ensure documentation clearly states "primary hyperaldosteronism" and not secondary hyperaldosteronism.
• Avoid using this code if a more specific type of primary hyperaldosteronism (e.g., Conn's syndrome, bilateral adrenal hyperplasia) is documented; use the appropriate subcategory.
• Always code any associated manifestations, such as hypertension (I10) or hypokalemia (E87.6), as secondary diagnoses.