9A21

ICD-11 MMS 2026-01

Orbital infection

Exclusions from above levels

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

Child codes

  • 9A21.0 – Orbital cellulitis
  • 9A21.1 – Orbital subperiosteal abscess
  • 9A21.2 – Orbital abscess
  • 9A21.3 – Periostitis of orbit
  • 9A21.Y – Other specified orbital infection
  • 9A21.Z – Orbital infection, unspecified

Sibling codes

  • 9A20 – Displacement of eyeball
  • 9A22 – Orbital inflammation
  • 9A23 – Orbital cyst
  • 9A24 – Bony deformity of orbit
  • 9A25 – Soft tissue deformity of orbit
  • 9A26 – Combined bony and soft tissue deformity of orbit
  • 9A2Y – Other specified disorders of orbit
  • 9A2Z – Disorders of orbit, unspecified

Foundation entity

Orbital infection – http://id.who.int/icd/entity/287258758

Allowed postcoordination axes

Part of: 09: Diseases of the visual system