1C1B

ICD-11 MMS 2026-01

Nocardiosis

Description

A disease caused by an infection with the gram-positive bacteria Nocardia. This disease presents with symptoms depending on the site of infection (commonly lung, brain, or skin). Transmission is by inhalation of Nocardia from soil or water, or by direct cutaneous contact. Confirmation is by identification of Nocardia in samples from affected sites.

Exclusions from above levels

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

Child codes

  • 1C1B.0 – Pulmonary nocardiosis
  • 1C1B.1 – Cutaneous nocardiosis
  • 1C1B.Y – Other specified forms of nocardiosis
  • 1C1B.Z – Nocardiosis, 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
  • 1C1C – Meningococcal disease
  • 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

Nocardiosis – http://id.who.int/icd/entity/6555116

Allowed postcoordination axes

Part of: 01: Certain infectious or parasitic diseases