Addison's diseaseFrom Wikipedia, the free encyclopedia Jump to: navigation, search Addison's diseaseSynonymsAddison disease, chronic adrenal insufficiency, hypocortisolism, hypoadrenalism, primary adrenal insufficiency[1]Classic darkening of the skin due to increased pigment as seen in Addison's diseaseClassification and external resourcesSpecialtyEndocrinologyICD-10E27.1-E27.2..