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Chapters ENES DE

XExtension Codes
Substances
XM6S30Medicaments
XM3973Agents primarily affecting the cardiovascular system
Peripheral vasodilators
XM0B82Imidazoline derivatives

XM5NP2 category

Phentolamine

Also indexed as

Phentolamine

Nearby in Imidazoline derivatives

XM3BY1Tolazoline

NextXM3BY1 — Tolazoline

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
Histopathology
Dimensions of injury
Dimensions of external causes
Consciousness
Substances
Diagnosis code descriptors
Capacity or context
Health Devices, Equipment and Supplies
Extension codes of particular relevance to skin diseases
5 more
XM6S30Medicaments
XM9N55Substances, chiefly nonmedicinal
Allergens
XM3KY1Agents affecting genitourinary system, sex or anabolic hormones
XM26S4Hormones and their synthetic substitutes or antagonists, not elsewhere classified
XM9W63Agents affecting bones, joints or other connective tissue, not elsewhere classified
XM4TG8Agents primarily affecting water and nutrition-balance or metabolism
XM3973Agents primarily affecting the cardiovascular system
XM6CH2Drugs primarily affecting the autonomic nervous system
XM7YD4Drugs used in addictive disorders
XM8014Antivertigo and motion sickness preparations
XM1950Agents primarily acting on smooth and skeletal muscles or the respiratory system
14 more
Calcium-channel blockers
Cardiac stimulants
Antiarrhythmics
Other antihypertensive drugs
Vasodilators used in cardiac diseases
Peripheral vasodilators
Other agents primarily affecting the cardiovascular system
Vasoprotectives
Beta blocking agents
2 more
XM3LG1Vinburnine
XM51E4Viquidil
XM0122Xanthinol nicotinate
XM0BT52-amino-1-phenylethanol derivatives
XM0B82Imidazoline derivatives
XM5NF4Purine derivatives
XM9PA9Pinacidil
XM3VH9Vincamine
XM68C7Visnadine
43 more
XM5NP2Phentolamine
XM3BY1Tolazoline

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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