9C80.2

ICD-11 MMS 2026-01

Vertical or torsional strabismus

Description

An abnormal binocular alignment which may be constant or intermittent, that is not horizontal, but vertical or torsional (rotational) around the pupillary axis.

Index terms

  • Vertical or torsional strabismus
  • Hypertropia
  • Hypotropia
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  • Cyclotropia
  • Excyclotropia
  • Incyclotropia
  • Dissociated vertical deviation
  • DVD - [dissociated vertical deviation]

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

  • 9C80.0 – Esotropia
  • 9C80.1 – Exotropia
  • 9C80.3 – Intermittent strabismus
  • 9C80.4 – Heterophoria
  • 9C80.5 – Mechanical strabismus
  • 9C80.Y – Other specified non paralytic strabismus
  • 9C80.Z – Non paralytic strabismus, unspecified

Foundation entity

Vertical or torsional strabismus – http://id.who.int/icd/entity/1458183689

Allowed postcoordination axes

Part of: 9C80: Non paralytic strabismus › 09: Diseases of the visual system