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Chapters ENES DE

09Diseases of the visual system
Impairment of visual functions
Subjective visual experiences

9D55 category

Nonorganic visual loss

Also indexed as

Nonorganic visual loss

Nearby in Subjective visual experiences

9D50Visual discomfort
9D51Transient visual loss
9D52Hemifield losses
9D53Entoptic phenomena
9D54Visual illusions
9D56Visual release hallucinations
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Previous9D54 — Visual illusions Next9D56 — Visual release hallucinations

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
9C60-9C61.ZGlaucoma or glaucoma suspect
9C80-9C8ZStrabismus or ocular motility disorders
9D00-9D0ZDisorders of refraction or accommodation
9D20-9D25Postprocedural disorders of eye or ocular adnexa
9D41-9D7ZImpairment of visual functions
9D90-9D9ZVision impairment
Neoplasms of the eye or ocular adnexa
Reasons for contact with the health care system in relation to eyes or vision
4B4YOther specified diseases of the immune system
6 more
9D41Impairment of visual field
9D42Patterns of visual field impairment
9D43Impairment of contrast vision
9D44Impairment of colour vision
9D45Impairment of light sensitivity
9D46Impairment of binocular functions
9D50-9D5ZSubjective visual experiences
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
9D50Visual discomfort
9D51Transient visual loss
9D52Hemifield losses
9D53Entoptic phenomena
9D54Visual illusions
9D55Nonorganic visual loss
9D56Visual release hallucinations
4B4YOther specified diseases of the immune system
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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