Question 1

What is ICD-10 code H02.22A?

Accepted Answer

H02.22A is the ICD-10-CM diagnosis code for mechanical lagophthalmos right eye, upper and lower eyelids. Inability of both the upper and lower eyelids of the right eye to close completely due to mechanical causes. H02.22A sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of eyelid, lacrimal system and orbit (h00-h05).

H02.22A 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.

This code indicates bilateral eyelid involvement (both upper and lower) of the right eye only.

Question 2

Is H02.22A an HCC code?

Accepted Answer

No. H02.22A 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 H02.22A billable?

Accepted Answer

Yes. H02.22A 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. H02.22A 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 H02.22A?

Accepted Answer

H02.22A 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 H02.22A 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 H02.22A?

Accepted Answer

This code indicates bilateral eyelid involvement (both upper and lower) of the right eye only Do not use this code if only one eyelid of the right eye is affected; use the more specific single-eyelid codes instead

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H02.22A

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H02.22A ICD-10-CM Code: Mechanical lagophthalmos right eye, upper and lower eyelids

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H02.22A

Is H02.22A an HCC code?

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