H18.442 ICD-10-CM Code: Keratomalacia, left eye

H18.442 is the ICD-10-CM diagnosis code for keratomalacia, left eye. Keratomalacia is a serious eye condition where the cornea (the clear front part of the eye) becomes soft and cloudy, leading to potential vision loss. This code specifically refers to this condition affecting the left eye. H18.442 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of sclera, cornea, iris and ciliary body (h15-h22).

H18.442 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.

Keratomalacia is often associated with severe vitamin A deficiency and is considered a medical emergency; verify documentation supports this diagnosis and check for related vitamin A deficiency codes (E50.x) to code comprehensively.