H50.312
BillableIntermittent monocular esotropia, left eye
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is H50.312 an HCC code?
No. H50.312 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
H50.312 is the ICD-10-CM diagnosis code for intermittent monocular esotropia, left eye. A condition where the left eye occasionally turns inward toward the nose, while the right eye remains straight. This intermittent eye misalignment typically occurs during certain activities or when the person is tired. H50.312 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of ocular muscles, binocular movement, accommodation and refraction (h49-h52).
H50.312 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Verify documentation specifies 'left eye' and 'intermittent' to distinguish from constant esotropia.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H50.312 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify documentation specifies 'left eye' and 'intermittent' to distinguish from constant esotropia
- •Confirm this is monocular (one eye affected) rather than alternating esotropia