1C21

ICD-11 MMS 2026-01

Chlamydial peritonitis

Description

This is a sexually transmitted infection that causes an inflammation of the peritoneum, the thin tissue that lines the inner wall of the abdomen and covers most of the abdominal organs.

Index terms

  • Chlamydial peritonitis

Exclusions from above levels

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

Sibling codes

  • 1C20 – Chlamydial conjunctivitis
  • 1C22 – Infections due to Chlamydia psittaci
  • 1C23 – Trachoma
  • 1C2Y – Other specified diseases due to chlamydiae
  • 1C2Z – Diseases due to chlamydiae, unspecified

Foundation entity

Chlamydial peritonitis – http://id.who.int/icd/entity/1132542967

Allowed postcoordination axes

Part of: 01: Certain infectious or parasitic diseases