5B55.2 Vitamin A deficiency with conjunctival xerosis and Bitot's spots

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Generalised conjunctival xerosis suggests advanced vitamin A deficiency. The entire conjunctiva appears dry, roughened, and corrugated, sometimes skin-like. In some individuals keratin and saprophytic bacilli accumulate on the xerotic surface, giving it a foamy or cheesy appearance. Such lesions are known as Bitot's spot. With treatment active conjunctival xerosis and Bitot's spot begin to resolve within 2-5 days. Most will disappear within 2 weeks, though a significant proportion of temporal lesions may persist, in shrunken form, for months.

synonyms

• Vitamin A deficiency with conjunctival xerosis and Bitot's spots
• bitot spots
• Bitot spots in the young child
• conjunctival xerosis with bitot's spots

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