416069001: Thygeson superficial punctate keratitis (disorder)

• SNOMED CT Concept\Clinical finding (finding)\...
• \Finding of head and neck region\Head finding (finding)\...
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Corneal finding\Corneal epithelium finding\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Corneal finding\Corneal epithelium finding\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Ocular surface finding\Corneal epithelium finding\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Ocular surface finding\Corneal epithelium finding\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Finding of head region\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disorder of head (disorder)\Inflammatory disorder of head\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Corneal finding\Corneal epithelium finding\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Corneal finding\Corneal epithelium finding\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Corneal finding\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Ocular surface finding\Corneal epithelium finding\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Ocular surface finding\Corneal epithelium finding\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Anterior segment finding (finding)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Globe finding\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Eye / vision finding\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of sensory organ (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Degenerative disorder\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disease\Degenerative disorder\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Inflammation of specific body systems\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of body system\Visual system disorder\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammatory disorder of head\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammation of specific body systems\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Inflammatory disorder\Inflammation of specific body structures or tissue\Inflammation of specific body organs\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Lesion of eye (disorder)\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Anomaly of eye (disorder)\Degenerative disorder of eye\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal epithelial degeneration\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Corneal degeneration\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Lesion of cornea (disorder)\Corneal opacity\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Disorder of eye region (disorder)\Disorder of eye proper (disorder)\Disorder of anterior segment of eye\Disorder of cornea\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)
• \Disease\Disorder of head (disorder)\Inflammatory disorder of head\Inflammatory disorder of the eye (disorder)\Keratitis\Superficial keratitis\Thygeson superficial punctate keratitis (disorder)

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2005. Module: SNOMED CT core

Descriptions:

Id	Description	Lang	Type	Status	Case?	Module
2546192012	Thygeson superficial punctate keratitis (disorder)	en	Fully specified name	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
2548469011	Thygeson superficial punctate keratitis	en	Synonym (core metadata concept)	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
3654662013	Insidious, chronic and recurrent disorder, characterized by small and elevated oval corneal intraepithelial, whitish-gray opacities, extending to the entire anterior surface of the cornea of both eyes. Corneal lesions show a tendency for the central pupillary area distribution with mild or absent conjunctival inflammation and no association to systemic disease.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
3655421018	Insidious, chronic and recurrent disorder, characterised by small and elevated oval corneal intraepithelial, whitish-gray opacities, extending to the entire anterior surface of the cornea of both eyes. Corneal lesions show a tendency for the central pupillary area distribution with mild or absent conjunctival inflammation and no association to systemic disease.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
4443831000172114	oppervlakkige keratitis punctata Thygeson-type	nl	Synonym (core metadata concept)	Active	Only initial character case insensitive (core metadata concept)	Belgian module (core metadata concept)

Expanded Value Set

This concept is not in any reference sets

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