9C40.41

ICD-11 MMS 2026-01

Posterior ischemic optic neuropathy

Description

This refers to posterior ischemic damage to the optic nerve due to any cause. Damage and death of these nerve cells, or neurons, leads to characteristic features of optic neuropathy.

Index terms

  • Posterior ischemic optic neuropathy
  • Arteritic posterior ischemic optic neuropathy
  • Non-arteritic posterior ischemic optic neuropathy
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  • Idiopathic non-arteritic posterior ischemic optic neuropathy
  • Secondary non-arteritic posterior ischemic optic neuropathy

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

  • 9C40.40 – Anterior ischemic optic neuropathy
  • 9C40.4Y – Other specified ischaemic optic neuropathy
  • 9C40.4Z – Ischaemic optic neuropathy, unspecified

Foundation entity

Posterior ischemic optic neuropathy – http://id.who.int/icd/entity/1590032669

Allowed postcoordination axes

Part of: 9C40.4: Ischaemic optic neuropathy › 9C40: Disorder of the optic nerve › 09: Diseases of the visual system