ICD-10 Code H50.312 – Intermittent monocular esotropia, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.312 – Intermittent monocular esotropia, left eye
What it is
Use this code for intermittent inward turning of the left eye that occurs at times rather than constantly. The deviation is monocular, meaning the left eye is the eye affected.
Clinical signs
Typical documentation includes episodic esotropia of the left eye, often noted on exam or reported by the patient or caregiver. Clinical features vary; refer to documentation.
When to use this code
Assign H50.312 when the provider documents intermittent esotropia limited to the left eye. Use it for outpatient or encounter records where the diagnosis is confirmed, suspected, or being followed clinically. Check documentation if laterality or intermittency is unclear.
Do not use for
Do not use this code for constant esotropia, right eye involvement, or unspecified laterality. If the record does not clearly state intermittent monocular left eye involvement, Check documentation.
Coding tip
Confirm both laterality and intermittency in the note before coding H50.312.