H16.432 ICD-10-CM Code: Localized vascularization of cornea, left eye
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FY 2026 Apr update / Diseases of the eye and adnexa (H00-H59) / Disorders of sclera, cornea, iris and ciliary body (H15-H22)
H16.432
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceLocalized vascularization of cornea, left eye
This condition involves the growth of new blood vessels in a localized area of the cornea (the clear front part of the eye) in the left eye. This abnormal blood vessel formation can affect vision and may result from injury, infection, or inflammation of the cornea.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
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Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for H16.432 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H16.432 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H16.432 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H16.432 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H16.432 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H16.432 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for H16.432 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is H16.432 an HCC code?
No. H16.432 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
H16.432 is the ICD-10-CM diagnosis code for localized vascularization of cornea, left eye. This condition involves the growth of new blood vessels in a localized area of the cornea (the clear front part of the eye) in the left eye. This abnormal blood vessel formation can affect vision and may result from injury, infection, or inflammation of the cornea. H16.432 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).
H16.432 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.
Ensure laterality is correctly documented as left eye (H16.432); verify the provider has specified 'left eye' rather than right eye (H16.431) or bilateral (H16.43).
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H16.432 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Ensure laterality is correctly documented as left eye (H16.432); verify the provider has specified 'left eye' rather than right eye (H16.431) or bilateral (H16.43)
- •Confirm this code is used only for localized vascularization; if vascularization is diffuse or involves both eyes, different codes may apply