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Chapters ENES DE

XExtension Codes
Substances
XM9N55Substances, chiefly nonmedicinal
XM5R77Substance of plant origin
XM8A62Plant protein

XM2044 category

English walnut pollen

Also indexed as

English walnut pollen

Nearby in Plant protein

XM7A46American beech wood dust
XM4M03Oak wood dust
XM6VG6European ash wood dust
XM1K52Apple
XM07U6Banana
XM77D3Grape
XM4TY6Kiwifruit
XM6AW1Mango

PreviousXM9JG2 — Cottonwood NextXM2EQ3 — Cashew nut

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
XM7U05Paratertiary butylphenol formaldehyde resin
XM5B21Phthalate
XM74S8Poisonous mushroom
XM9KE6Silicone
XM5R77Substance of plant origin
XM6UT9Substance of human origin
XM7FG4Toluidine
XM5NA2Triorthocresyl phosphate
XM90U0Triphenyl phosphate
41 more
XM6LL5Poisonous plant fruits, not elsewhere classified
XM2BH3Poisonous plant leaves, not elsewhere classified
XM0GB3Poisonous plant roots, not elsewhere classified
XM2CE0Poisonous plant sap, not elsewhere classified
XM7JK8Poisonous plant seeds, not elsewhere classified
XM7KY1Poisonous plant stem, not elsewhere classified
XM56V2Poisonous plant thorns, not elsewhere classified
XM5NH2Substance of marine plant origin, not elsewhere classified
XM8A62Plant protein
108 more
XM1304American beech
XM5TH6Arizona cypress
XM3ES3Brazil nut
XM9GG3Cedar elm
XM36B2Coastal maple
XM6MF9Coconut
XM9JG2Cottonwood
XM2044English walnut pollen
XM2EQ3Cashew nut
XM7QD6Grey alder
XM7L19Hazelnut
XM4WW3Italian cypress
XM3940Japanese cedar
XM8QG1Japanese cypress
XM9AZ7Macadamia
94 more

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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