5A02 Thyrotoxicosis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

Thyrotoxicosis is defined as an elevated level of free thyroid hormone in serum (from any source) and suppression of thyroid-stimulating hormone (TSH). If it is caused by overproduction and secretion from the thyroid gland, it is called hyperthyroidism.

exclusions

• Transitory neonatal hyperthyroidism  (KB62.0)

code elsewhere

• Dysthyroid exophthalmos  (9A20.00)
• Human chorionic gonadotrophin-induced thyrotoxicosis  (JA65.Y)

sections/codes in this section ()

• Thyrotoxicosis with diffuse goitre  (5A02.0)
• Thyrotoxicosis with toxic single thyroid nodule  (5A02.1)
• Thyrotoxicosis with toxic multinodular goitre  (5A02.2)
• Thyrotoxicosis from ectopic thyroid tissue  (5A02.3)
• Thyrotoxicosis factitia  (5A02.4)
• Thyroid crisis  (5A02.5)
• Secondary hyperthyroidism  (5A02.6)
• Other specified thyrotoxicosis  (5A02.Y)
• Thyrotoxicosis, unspecified  (5A02.Z)

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