H18.011 ICD-10-CM Code: Anterior corneal pigmentations, right 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)
H18.011
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceAnterior corneal pigmentations, right eye
Pigmented (colored) deposits or staining on the front surface of the right eye's cornea.
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
Official- Staehli's line
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H18.011 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H18.011 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H18.011 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H18.011 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H18.011 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for H18.011 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is H18.011 an HCC code?
No. H18.011 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- H18.011
- Description
- Anterior corneal pigmentations, right eye
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
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
H18.011 is the ICD-10-CM diagnosis code for anterior corneal pigmentations, right eye. Pigmented (colored) deposits or staining on the front surface of the right eye's cornea. H18.011 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).
H18.011 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.
Distinguish from other corneal deposits by confirming pigmentation is documented.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H18.011 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Distinguish from other corneal deposits by confirming pigmentation is documented
- •Note that anterior location is specified; posterior pigmentation would use different codes