Question 1

What is ICD-10 code H43.393?

Accepted Answer

H43.393 is the ICD-10-CM diagnosis code for other vitreous opacities, bilateral. Various types of cloudiness or opaque material in the clear gel of both eyes that are not otherwise specified. H43.393 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of vitreous body and globe (h43-h44).

H43.393 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.

Confirm bilateral involvement is documented; do not assume bilateral if only one eye is mentioned.

Question 2

Is H43.393 an HCC code?

Accepted Answer

No. H43.393 is a billable ICD-10-CM code but does not map to any payment HCC category under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can still be reported on Medicare Advantage encounter data submissions, but it does not contribute to the beneficiary's Risk Adjustment Factor (RAF) score and therefore does not affect the risk-adjusted capitation payment to the plan. V28 reached 100% phase-in for payment year 2026.

Question 3

Is H43.393 billable?

Accepted Answer

Yes. H43.393 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. H43.393 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

Question 4

What is the V28 vs V24 difference for H43.393?

Accepted Answer

H43.393 does not map to a payment HCC under either the CMS-HCC V28 risk adjustment model or the older V24 model. V28 reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition. Because neither model rewards H43.393 with a risk adjustment factor, it contributes zero to a Medicare Advantage beneficiary's RAF score in either version. Coders should check whether provider documentation supports a more specific child code that does map to a payment HCC.

Question 5

What should coders know when reporting H43.393?

Accepted Answer

Confirm bilateral involvement is documented; do not assume bilateral if only one eye is mentioned Bilateral opacities may warrant investigation for systemic disease; document any workup or findings

HCC Buddy Code Card

H43.393

Is H43.393 an HCC code?

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Open H43.393 in the Interactive Encoder

H43.393 ICD-10-CM Code: Other vitreous opacities, bilateral

HCC Buddy Code Card

H43.393

Is H43.393 an HCC code?

What This Code Means

Coding Tips

Child Codes

Code Hierarchy

Open H43.393 in the Interactive Encoder