H11.412 ICD-10-CM Code: Vascular abnormalities of conjunctiva, left eye
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Diseases of the eye and adnexa (H00-H59) / Disorders of conjunctiva (H10-H11)
H11.412
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceVascular abnormalities of conjunctiva, left eye
This code describes abnormal blood vessels in the conjunctiva (the clear membrane covering the white part of the eye) on the left side. These vascular abnormalities may appear as visible blood vessel irregularities or growths on the eye surface.
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
Code Trumping
Basket needed
Code Book Path
Inclusion Terms
Official- Conjunctival aneurysm
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H11.412 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H11.412 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H11.412 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H11.412 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H11.412 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for H11.412 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 H11.412 an HCC code?
No. H11.412 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
Get the V28 RAF + MEAT cheat sheet
One printable page: confirm a code's V28 HCC status, its RAF weight, and the MEAT your note needs to make it stick. Free, no card.
Free PDF. No card. Unsubscribe anytime.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
H11.412 is the ICD-10-CM diagnosis code for vascular abnormalities of conjunctiva, left eye. This code describes abnormal blood vessels in the conjunctiva (the clear membrane covering the white part of the eye) on the left side. These vascular abnormalities may appear as visible blood vessel irregularities or growths on the eye surface. H11.412 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of conjunctiva (h10-h11).
H11.412 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 documentation specifies the left eye; if bilateral, code both H11.412 (left) and H11.411 (right) separately.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H11.412 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Ensure documentation specifies the left eye; if bilateral, code both H11.412 (left) and H11.411 (right) separately
- •Verify the type of vascular abnormality documented (such as telangiectasia, aneurysm, or hemangioma) as some may have more specific codes available