ICD-11 MMS 2026-01
Non paralytic strabismus
Description
Non-paralytic strabismus is an abnormal binocular alignment in which one of the eyes is deviated. There are full ocular movements in each eye. The condition can alternate between eyes or only involve one eye. Strabismus may be intermittent or constant. The abnormal alignment may be present at distance fixation, near fixation or both.
Exclusions from above levels
01 – Certain infectious or parasitic diseases05 – Endocrine, nutritional or metabolic diseases18 – Complications of pregnancy, childbirth and the puerperium
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19 – Certain conditions originating in the perinatal period22 – Injury, poisoning or certain other consequences of external causes8A21.0 – Posterior cortical atrophy
Child codes
9C80.0 – Esotropia9C80.1 – Exotropia9C80.2 – Vertical or torsional strabismus9C80.3 – Intermittent strabismus9C80.4 – Heterophoria9C80.5 – Mechanical strabismus9C80.Y – Other specified non paralytic strabismus9C80.Z – Non paralytic strabismus, unspecified
Sibling codes
9C81 – Ocular motor nerve palsies9C82 – Disorders of extraocular muscles9C83 – Disorders of binocular movement9C84 – Nystagmus9C85 – Certain specified irregular eye movements9C8Y – Other specified strabismus or ocular motility disorders9C8Z – Strabismus or ocular motility disorders, unspecified
Allowed postcoordination axes
Part of: 09: Diseases of the visual system
