ICD-10 Code H50.17 – Alternating exotropia with V pattern (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.17 – Alternating exotropia with V pattern
What it is
H50.17 identifies alternating exotropia with a V pattern, a strabismus in which either eye may deviate outward and the misalignment changes with upgaze and downgaze. Use it when documentation specifically states this pattern.
Clinical signs
Typical findings include outward eye deviation that alternates between eyes and a larger horizontal deviation in one vertical gaze position than the other. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents alternating exotropia with a V pattern on examination, assessment, or operative note. It also fits when the record clearly describes a V-pattern exotropia and alternating fixation. Check documentation if the pattern or laterality is unclear.
Do not use for
Do not use H50.17 for exotropia without a documented V pattern, or for constant unilateral exotropia. If the note only says “strabismus” or gives a different pattern, select the more specific documented code.
Coding tip
Code from the provider’s exact wording, and confirm both “alternating” and “V pattern” are documented before assigning H50.17.