09Diseases of the visual system Strabismus or ocular motility disorders 9C80Non paralytic strabismus
9C80.4
category
Heterophoria
Definition A temporary deviation of the eyes from normal binocular alignment when there is disruption of the visual input from one eye. The alignment is normal when there is binocular visual input.
Also indexed as
Alternating hyperphoria Cyclophoria Esophoria Excyclophoria Exophoria Heterophoria Hyperphoria Hypophoria Incyclophoria Intermittent esophoria Vertical heterophoria latent strabismus phoria
Nearby in Non paralytic strabismus
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.
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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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