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XExtension Codes
Anatomy and topography
Functional anatomy
Endocrine system

XA8RK3 category

Thyroid gland

4 subordinate codes

XA8LV3Left lobe of thyroid gland
XA9L72Right lobe of thyroid gland
XA4NE5Isthmus of thyroid gland
XA5109Pyramidal lobe of thyroid gland

Also indexed as

Thyroid, NOSThyroid gland

Nearby in Endocrine system

XA1CN1Hypothalamus
XA1EU3Pineal gland
XA8J35Pituitary gland
XA1342Parathyroid gland
XA45E6Pancreatic islets
XA0NE9Adrenal gland

PreviousXA8J35 — Pituitary gland NextXA1342 — Parathyroid gland

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01Certain infectious or parasitic diseases
02Neoplasms
03Diseases of the blood or blood-forming organs
04Diseases of the immune system
05Endocrine, nutritional or metabolic diseases
06Mental, behavioural or neurodevelopmental disorders
07Sleep-wake disorders
08Diseases of the nervous system
09Diseases of the visual system
10Diseases of the ear or mastoid process
11Diseases of the circulatory system
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14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
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19Certain conditions originating in the perinatal period
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VSupplementary section for functioning assessment
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XA1CN1Hypothalamus
XA1EU3Pineal gland
XA8J35Pituitary gland
XA8RK3Thyroid gland
XA1342Parathyroid gland
XA45E6Pancreatic islets
XA0NE9Adrenal gland
XA8LV3Left lobe of thyroid gland
XA9L72Right lobe of thyroid gland
XA4NE5Isthmus of thyroid gland
XA5109Pyramidal lobe of thyroid gland

International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).

Release 2026-01. View this entity in the official WHO ICD-11 browser.

This page reproduces WHO classification content for reference. It is not medical advice and must not be used to diagnose or treat. For coding decisions, consult the official release and your national coding guidelines.

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