In simple words: This code indicates tuberculosis (TB) affecting endocrine glands other than the adrenal or thyroid glands, such as the pituitary and thymus glands.

Tuberculosis (TB) of other endocrine glands is caused by Mycobacterium tuberculosis.The bacteria enter through the respiratory system and migrate to other organs, including endocrine glands, through the lymph system or blood. They form granulomas (inflammatory masses of cells) which can remain dormant for extended periods but may eventually rupture and infect the organ. This code specifies TB involving endocrine glands not classified elsewhere.

Example 1: A patient presents with fatigue, weight loss, and low blood pressure. Tests reveal adrenal insufficiency and the presence of Mycobacterium tuberculosis, indicating tuberculosis of the adrenal gland. However, since the adrenal gland is not included in "other endocrine glands," code A18.82 would not be used, and a more appropriate code like A18.89 (Tuberculosis of other sites) might be considered alongside a code for adrenal insufficiency., A patient with a history of pulmonary tuberculosis complains of headaches and visual disturbances. Imaging reveals a tuberculoma affecting the pituitary gland. Code A18.82 is used to indicate tuberculosis of the pituitary gland., A patient experiences an enlarged thymus gland along with general symptoms of tuberculosis. Biopsy confirms the presence of Mycobacterium tuberculosis in the thymus. A18.82 is applied to signify tuberculosis of the thymus gland.

Documentation should include evidence of Mycobacterium tuberculosis infection in the affected endocrine gland, which may be obtained through laboratory tests, biopsy findings, imaging studies (MRI, CT), and clinical presentation.