H18.032 ICD-10-CM Code: Corneal deposits in metabolic disorders, left eye
HCC Buddy Code Card
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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)
H18.032
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceCorneal deposits in metabolic disorders, left eye
Deposits on the front surface of the left cornea caused by metabolic disorders such as diabetes or other systemic conditions affecting mineral or protein metabolism.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for H18.032 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H18.032 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H18.032 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H18.032 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H18.032 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H18.032 in this effective period.
Code Also
Official- associated metabolic disorder
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 H18.032 an HCC code?
No. H18.032 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
H18.032 is the ICD-10-CM diagnosis code for corneal deposits in metabolic disorders, left eye. Deposits on the front surface of the left cornea caused by metabolic disorders such as diabetes or other systemic conditions affecting mineral or protein metabolism. H18.032 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).
H18.032 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.
Always code the associated metabolic disorder separately to show the relationship.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H18.032 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Always code the associated metabolic disorder separately to show the relationship
- •Verify left eye laterality is documented in the medical record