ICD-11 classes
04 Diseases of the immune system
Allergic or hypersensitivity conditions
4A81 — Allergic or hypersensitivity disorders involving the eye
9A60.02 — Allergic conjunctivitis
ICD-11 9A60.02 — Allergic conjunctivitis
Allergic conjunctivitis is an IgE-mediated response due to the exposure of seasonal or perennial allergens in sensitized patients. The allergen-induced inflammatory response of the conjunctiva results in the release of histamine and other mediators. Symptoms consist of redness (mainly due to vasodilation of the peripheral small blood vessels), oedema (swelling) of the conjunctiva, itching, and increased lacrimation (production of tears).
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.
The diagnosis is coded elsewhere:
- Papillary conjunctivitis #9356