H10.519 ICD-10-CM Code: Ligneous conjunctivitis, unspecified eye
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FY 2026 Apr update / Diseases of the eye and adnexa (H00-H59) / Disorders of conjunctiva (H10-H11)
H10.519
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceLigneous conjunctivitis, unspecified eye
A rare type of eyelid and conjunctival inflammation characterized by woody, fibrous tissue formation with unspecified eye involvement.
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
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for H10.519 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H10.519 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H10.519 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H10.519 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H10.519 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H10.519 in this effective period.
Code Also
Official- underlying condition if known, such as:
- plasminogen deficiency (E88.02)
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 H10.519 an HCC code?
No. H10.519 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
H10.519 is the ICD-10-CM diagnosis code for ligneous conjunctivitis, unspecified eye. A rare type of eyelid and conjunctival inflammation characterized by woody, fibrous tissue formation with unspecified eye involvement. H10.519 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).
H10.519 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.
Use this code only when the affected eye is not documented or cannot be determined.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H10.519 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when the affected eye is not documented or cannot be determined
- •Query the provider if laterality information is available in the medical record