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Chapters ENES DE

05Endocrine, nutritional or metabolic diseases
Endocrine diseases
Disorders of the thyroid gland or thyroid hormones system

5A00 category

Hypothyroidism

4 subordinate codes

5A00.0Congenital hypothyroidism
5A00.1Iodine-deficiency-related thyroid disorders or allied conditions
5A00.2Acquired hypothyroidism
4B4ZDiseases of the immune system, unspecified

Nearby in Disorders of the thyroid gland or thyroid hormones system

5A01Nontoxic goitre
5A02Thyrotoxicosis
5A03Thyroiditis
5A04Hypersecretion of calcitonin
5A05Generalised resistance to thyroid hormone
5A06Sick-euthyroid syndrome
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Next5A01 — Nontoxic goitre

Browse ICD-11

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
12Diseases of the respiratory system
13Diseases of the digestive system
14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
17Conditions related to sexual health
18Pregnancy, childbirth or the puerperium
19Certain conditions originating in the perinatal period
20Developmental anomalies
21Symptoms, signs or clinical findings, not elsewhere classified
22Injury, poisoning or certain other consequences of external causes
23External causes of morbidity or mortality
24Factors influencing health status or contact with health services
25Codes for special purposes
26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
5A00-5B3ZEndocrine diseases
5B50-5C3ZNutritional disorders
5C50-5D2ZMetabolic disorders
5D40-5D46Postprocedural endocrine or metabolic disorders
5A00-5A0ZDisorders of the thyroid gland or thyroid hormones system
5A10-5A2YDiabetes mellitus
5A40-5A4ZOther disorders of glucose regulation or pancreatic internal secretion
5A50-5A5ZDisorders of the parathyroids or parathyroid hormone system
5A60-5A6ZDisorders of the pituitary hormone system
5A70-5A7ZDisorders of the adrenal glands or adrenal hormone system
5A80-5A8ZDisorders of the gonadal hormone system
5A90-5A9ZCertain disorders of puberty
5B00-5B0ZPolyglandular dysfunction
5 more
5A00Hypothyroidism
5A01Nontoxic goitre
5A02Thyrotoxicosis
5A03Thyroiditis
5A04Hypersecretion of calcitonin
5A05Generalised resistance to thyroid hormone
5A06Sick-euthyroid syndrome
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
5A00.0Congenital hypothyroidism
5A00.1Iodine-deficiency-related thyroid disorders or allied conditions
5A00.2Acquired hypothyroidism
4B4ZDiseases of the immune system, unspecified

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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