1C23.1

ICD-11 MMS 2026-01

Active stage of trachoma

Description

This refers to the active stage of an infectious disease caused by the Chlamydia trachomatis bacterium which produces a characteristic roughening of the inner surface of the eyelids.

Index terms

  • Active stage of trachoma
  • Egyptian ophthalmia
  • Trachomatous pannus
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  • marginal corneal pannus
  • trachoma pannus
  • Trachomatous conjunctivitis
  • granular conjunctivitis
  • Trachomatous follicular conjunctivitis
  • Trachomatous granular conjunctivitis
  • Trachomatous keratitis

Exclusions from above levels

  • NE83.1 – Infection arising from device, implant or graft, not elsewhere classified

Sibling codes

  • 1C23.0 – Initial stage of trachoma
  • 1C23.Y – Other specified trachoma
  • 1C23.Z – Trachoma, unspecified

Foundation entity

Active stage of trachoma – http://id.who.int/icd/entity/1309973365

Allowed postcoordination axes

Part of: 1C23: Trachoma › 01: Certain infectious or parasitic diseases