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XExtension Codes
Diagnosis code descriptors
Diagnosis method of confirmation

XY19 category

Diagnosis confirmed by microscopy

Also indexed as

Diagnosis confirmed by microscopy

Nearby in Diagnosis method of confirmation

XY3BDiagnosis confirmed by laboratory examination
XY0EDiagnosis confirmed by serology
XY9QDiagnosis confirmed by histology
XY8KDiagnosis confirmed by genetics
XY9RDiagnosis confirmed by imaging
XY0KDiagnosis confirmed by culture

PreviousXY9R — Diagnosis confirmed by imaging NextXY0K — Diagnosis confirmed by culture

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
Discharge diagnosis types
Diagnosis timing in relation to admission
Diagnosis timing in relation to surgical procedure
Diagnosis method of confirmation
Diagnosis certainty
Obstetrical diagnosis timing
Encounter descriptors
XY3BDiagnosis confirmed by laboratory examination
XY0EDiagnosis confirmed by serology
XY9QDiagnosis confirmed by histology
XY8KDiagnosis confirmed by genetics
XY9RDiagnosis confirmed by imaging
XY19Diagnosis confirmed by microscopy
XY0KDiagnosis confirmed by culture

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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