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Chapters ENES DE

05Endocrine, nutritional or metabolic diseases
Endocrine diseases
Diabetes mellitus
Acute complications of diabetes mellitus

5A20 category

Diabetic hyperosmolar hyperglycaemic state

3 subordinate codes

5A20.0Hyperosmolar hyperglycaemic state without coma
5A20.1Hyperosmolar hyperglycaemic state with coma
4B4ZDiseases of the immune system, unspecified

Nearby in Acute complications of diabetes mellitus

5A21Hypoglycaemia in the context of diabetes mellitus
5A22Diabetic acidosis
5A23Diabetic coma
5A24Uncontrolled or unstable diabetes mellitus
4B4YOther specified diseases of the immune system

Next5A21 — Hypoglycaemia in the context of diabetes mellitus

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
5A10Type 1 diabetes mellitus
5A11Type 2 diabetes mellitus
5A12Malnutrition-related diabetes mellitus
5A13Diabetes mellitus, other specified type
5A14Diabetes mellitus, type unspecified
5A20-5A2YAcute complications of diabetes mellitus
5A20Diabetic hyperosmolar hyperglycaemic state
5A21Hypoglycaemia in the context of diabetes mellitus
5A22Diabetic acidosis
5A23Diabetic coma
5A24Uncontrolled or unstable diabetes mellitus
4B4YOther specified diseases of the immune system
5A20.0Hyperosmolar hyperglycaemic state without coma
5A20.1Hyperosmolar hyperglycaemic state with coma
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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