ICD-10 Code H50.012 – Monocular esotropia, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.012 – Monocular esotropia, left eye
What it is
Monocular esotropia, left eye means the left eye turns inward toward the nose. The deviation is present in one eye and is documented as a specific strabismus diagnosis.
Clinical signs
You may see inward deviation of the left eye, often with misalignment on cover testing. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents esotropia limited to the left eye. It fits ophthalmology or pediatric eye evaluations that identify a unilateral inward turn. Do not assume laterality if the note is unclear; check documentation.
Do not use for
Do not use it for unspecified esotropia, alternating esotropia, or right-eye monocular esotropia. If the record does not clearly identify the left eye, check documentation.
Coding tip
Confirm both laterality and monocular status in the assessment before assigning H50.012.