| Wilson-Mikity syndrome | http://purl.bioontology.org/ontology/ICD10/P27.0 | Wilson-Mikity syndrome | |
| Wiskott-Aldrich syndrome | http://purl.bioontology.org/ontology/ICD10/D82.0 | Wiskott-Aldrich syndrome | |
| Withdrawal symptoms from therapeutic use of drugs in newborn | http://purl.bioontology.org/ontology/ICD10/P96.2 | Withdrawal symptoms from therapeutic use of drugs in newborn | |
| Work-related condition | http://purl.bioontology.org/ontology/ICD10/Y96 | Work-related condition | |
| Wound myiasis | http://purl.bioontology.org/ontology/ICD10/B87.1 | Wound myiasis | |
| Wrist or foot drop (acquired) | http://purl.bioontology.org/ontology/ICD10/M21.3 | Wrist or foot drop (acquired) | |
| Xanthelasma of eyelid | http://purl.bioontology.org/ontology/ICD10/H02.6 | Xanthelasma of eyelid | |
| Xeroderma pigmentosum | http://purl.bioontology.org/ontology/ICD10/Q82.1 | Xeroderma pigmentosum | |
| Xerosis cutis | http://purl.bioontology.org/ontology/ICD10/L85.3 | Xerosis cutis | |
| X-linked ichthyosis | http://purl.bioontology.org/ontology/ICD10/Q80.1 | X-linked ichthyosis | |
| Yaws | http://purl.bioontology.org/ontology/ICD10/A66 | Yaws | |
| Yaws, unspecified | http://purl.bioontology.org/ontology/ICD10/A66.9 | Yaws, unspecified | |
| Yellow fever | http://purl.bioontology.org/ontology/ICD10/A95 | Yellow fever | |
| Yellow fever, unspecified | http://purl.bioontology.org/ontology/ICD10/A95.9 | Yellow fever, unspecified | |
| Yellow nail syndrome | http://purl.bioontology.org/ontology/ICD10/L60.5 | Yellow nail syndrome | |
| Zoonotic bacterial disease, unspecified | http://purl.bioontology.org/ontology/ICD10/A28.9 | Zoonotic bacterial disease, unspecified | |
| Zoster encephalitis | http://purl.bioontology.org/ontology/ICD10/B02.0 | Zoster encephalitis | |
| Zoster [herpes zoster] | http://purl.bioontology.org/ontology/ICD10/B02 | Zoster [herpes zoster] | |
| Zoster meningitis | http://purl.bioontology.org/ontology/ICD10/B02.1 | Zoster meningitis | |
| Zoster ocular disease | http://purl.bioontology.org/ontology/ICD10/B02.3 | Zoster ocular disease | |
| Zoster with other complications | http://purl.bioontology.org/ontology/ICD10/B02.8 | Zoster with other complications | |
| Zoster with other nervous system involvement | http://purl.bioontology.org/ontology/ICD10/B02.2 | Zoster with other nervous system involvement | |
| Zoster without complication | http://purl.bioontology.org/ontology/ICD10/B02.9 | Zoster without complication | |
| Zygomycosis | http://purl.bioontology.org/ontology/ICD10/B46 | Zygomycosis | |
| Zygomycosis, unspecified | http://purl.bioontology.org/ontology/ICD10/B46.9 | Zygomycosis, unspecified | |
