ICD-10 Code H50.05 – Alternating Esotropia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.05 – Alternating esotropia
What it is
Alternating esotropia is an inward turning of either eye, with fixation shifting between the two eyes. It describes a strabismus pattern rather than a cause, so you should code it when the record documents alternating eye deviation.
Clinical signs
Typical findings include intermittent or constant inward deviation that alternates from one eye to the other. Clinical features vary; refer to documentation for laterality, frequency, and any associated amblyopia or binocular vision issues.
When to use this code
Use H50.05 when the provider documents alternating esotropia, alternating inward deviation, or a similar diagnosis. It fits ophthalmology or optometry notes that identify the strabismus pattern without naming another more specific cause. If the chart only says “crossed eyes,” check documentation.
Do not use for
Do not use this code for exotropia, vertical deviations, paralytic strabismus, or unspecified strabismus. If the record describes a different cause or does not clearly confirm alternating esotropia, check documentation.
Coding tip
Code the documented strabismus type exactly; do not assume alternating esotropia from general eye misalignment language.