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Chapters ENES DE

XExtension Codes
Substances
XM9N55Substances, chiefly nonmedicinal
XM2EE6Substance eaten as food, nonbacterial, not elsewhere classified
XM3825Animal protein
Fish or seafood

XM55Z4 category

Oyster

Also indexed as

Oyster

Nearby in Fish or seafood

XM95M8Fish
XM5MB3Crab
XM9JT3Lobster
XM7E84Shrimp
XM66P3Octopus

PreviousXM7E84 — Shrimp NextXM66P3 — Octopus

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
XM7EJ0Food additives not elsewhere classified
XM36M0Organic compounds not elsewhere classified
XM3DS3Preservative nonmedicinal, not elsewhere classified
XM6F66Soldering fluid, not elsewhere classified
XM2EE6Substance eaten as food, nonbacterial, not elsewhere classified
XM40U3Synthetic fragrances not elsewhere classified
XM15W5Varnish, not elsewhere classified
XM6MC4Soot, not elsewhere classified
XM4VX8Aromatic amine
41 more
XM44A4Bone meal
XM77G6Fungus eaten in food, not elsewhere classified
XM4L77Noxious meat, non bacterial, not elsewhere classified
XM3825Animal protein
Fowl or egg
Fish or seafood
Insect or arthropod
Milk or dairy
XM95M8Fish
XM5MB3Crab
XM9JT3Lobster
XM7E84Shrimp
XM55Z4Oyster
XM66P3Octopus

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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