1C1C

ICD-11 MMS 2026-01

Meningococcal disease

Description

This illness is severe and includes infections of the lining of the brain and spinal cord (meningitis) and generalised bloodstream infections (bacteraemia with or without sepsis). Meningococcus bacteria (Neisseria meningitidis) are spread through the exchange of respiratory and throat secretions like spit (e.g., by living in close quarters, kissing). Meningococcal disease can be treated with antibiotics, but quick medical attention is extremely important. Keeping up to date with recommended vaccines is the best defence against meningococcal disease.

Inclusions

  • Meningococcal infection

Exclusions from above levels

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

Child codes

  • 1C1C.0 – Meningococcal meningitis
  • 1C1C.1 – Waterhouse-Friderichsen syndrome
  • 1C1C.2 – Meningococcaemia
  • 1C1C.Y – Other specified meningococcal disease
  • 1C1C.Z – Meningococcal disease, unspecified

Sibling codes

  • 1C10 – Actinomycosis
  • 1C11 – Bartonellosis
  • 1C12 – Whooping cough
  • 1C13 – Tetanus
  • 1C14 – Obstetrical tetanus
  • 1C15 – Tetanus neonatorum
  • 1C16 – Gas gangrene
  • 1C17 – Diphtheria
  • 1C18 – Brazilian purpuric fever
  • 1C19 – Legionellosis
  • 1C1A – Listeriosis
  • 1C1B – Nocardiosis
  • 1C1D – Yaws
  • 1C1E – Pinta
  • 1C1F – Endemic non-venereal syphilis
  • 1C1G – Lyme borreliosis
  • 1C1H – Necrotising ulcerative gingivitis
  • 1C1J – Relapsing fever
  • 1C40 – Campylobacteriosis
  • 1C41 – Bacterial infection of unspecified site
  • 1C42 – Melioidosis
  • 1C43 – Actinomycetoma
  • 1C44 – Non-pyogenic bacterial infections of the skin
  • 1C45 – Toxic shock syndrome
  • 1C4Y – Other specified bacterial diseases
  • 1C4Z – Unspecified bacterial disease

Foundation entity

Meningococcal disease – http://id.who.int/icd/entity/1664016479

Allowed postcoordination axes

Part of: 01: Certain infectious or parasitic diseases