9C84.21

ICD-11 MMS 2026-01

Upbeat nystagmus

Index terms

  • Upbeat nystagmus

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
Show allHide
  • 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

  • 9C84.20 – Downbeat nystagmus
  • 9C84.22 – Torsional nystagmus
  • 9C84.23 – Perverted nystagmus
  • 9C84.2Y – Other specified vestibular nystagmus
  • 9C84.2Z – Vestibular nystagmus, unspecified

Foundation entity

Upbeat nystagmus – http://id.who.int/icd/entity/732545534

Allowed postcoordination axes

Part of: 9C84.2: Vestibular nystagmus › 9C84: Nystagmus › 09: Diseases of the visual system