Tuberculosis of thyroid gland

This code signifies a rare manifestation of tuberculosis specifically affecting the thyroid gland. It describes the presence of Mycobacterium tuberculosis infection within the thyroid tissue, leading to inflammation and potential dysfunction of the gland.

Apply this code when documentation confirms a diagnosis of tuberculosis localized to the thyroid gland. This typically requires histological confirmation of mycobacterial infection in thyroid biopsy specimens or strong clinical and imaging evidence in conjunction with positive microbiological tests for tuberculosis.

• Ensure documentation clearly specifies the thyroid as the site of tuberculosis infection, differentiating it from other endocrine or disseminated forms.
• Code also for the specific type of tuberculosis (e.g., active, latent) if documented, using an additional code from category A15-A19.
• Do not confuse with non-tuberculous thyroiditis or other infectious causes of thyroid inflammation.