QC66

The ICD-11 code for family history of eye or ear disorders is QC66. The full clinical description is "Family history of eye or ear disorders".

ICD-11 code QC66 represents “Family history of eye or ear disorders”. It is classified under Chapter 24: Factors Influencing Health Status or Contact With Health Services.

QC66 is in Chapter 24: Factors Influencing Health Status or Contact With Health Services (codes QA00-QF4Z).

QC66 maps to 3 ICD-10 codes: Z82.1 (Family history of blindness and visual loss), Z82.2 (Family history of deafness and hearing loss), Z83.5 (Family history of eye and ear disorders). ICD-10 and ICD-11 do not always have one-to-one mappings — check the mapping type (equivalent, approximate, narrower, or broader) for each result.

ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.

QC66 maps to 8 SNOMED CT concepts: 275118009, 266893006, 275119001, 430723005, 160353007, and 3 more. SNOMED CT is a clinical terminology used in electronic health records.

QC66 is linked to 5 UMLS Concept Unique Identifiers: C2911227, C0496709, C2911228, C0260538, C0476557. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.