9A60.02

ICD-11 MMS 2026-01

Allergic conjunctivitis

Description

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).

Index terms

  • Allergic conjunctivitis
  • Allergen-induced conjunctivitis
  • Perennial allergic conjunctivitis
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  • Seasonal allergic conjunctivitis
  • acute allergic conjunctivitis
  • spring conjunctivitis
  • Allergic conjunctivitis due to drugs or medicaments
  • Drug-induced conjunctivitis
  • conjunctivitis medicamentosa
  • medicament-induced conjunctivitis

Exclusions from above levels

  • 9A7Y – keratoconjunctivitis
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes
  • 8A21.0 – Posterior cortical atrophy

Sibling codes

  • 9A60.00 – Giant papillary conjunctivitis
  • 9A60.01 – Acute atopic conjunctivitis
  • 9A60.0Y – Other specified papillary conjunctivitis
  • 9A60.0Z – Papillary conjunctivitis, unspecified

Foundation entity

Allergic conjunctivitis – http://id.who.int/icd/entity/361206059

Allowed postcoordination axes

Part of: 9A60.0: Papillary conjunctivitis › 9A60: Conjunctivitis › 09: Diseases of the visual system