9C40.10

ICD-11 MMS 2026-01

Retrobulbar neuritis

Index terms

  • Retrobulbar neuritis
  • posterior demyelinating optic neuropathy
  • posterior optic neuritis
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  • retrobulbar optic neuritis
  • Secondary retrobulbar neuritis
  • Retrobulbar neuritis in multiple sclerosis

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

Sibling codes

  • 9C40.1Y – Other specified optic neuritis
  • 9C40.1Z – Optic neuritis, unspecified

Foundation entity

Retrobulbar neuritis – http://id.who.int/icd/entity/63567539

Allowed postcoordination axes

Part of: 9C40.1: Optic neuritis › 9C40: Disorder of the optic nerve › 09: Diseases of the visual system