H18.9
ICD-10BillableUnspecified disorder of cornea
Official ICD-10-CM descriptor (FY2026)
Unspecified disorder of cornea
H18.9 is valid for submission on a claim — CMS flags it as a billable, specific code.
Related codes in H18
- H18.0Corneal pigmentations and depositscategory
- H18.1Bullous keratopathycategory
- H18.2Other and unspecified corneal edemacategory
- H18.3Changes of corneal membranescategory
- H18.4Corneal degenerationcategory
- H18.5Hereditary corneal dystrophiescategory
- H18.6Keratoconuscategory
- H18.7Other and unspecified corneal deformitiescategory
- H18.8Other specified disorders of corneacategory
Where this code sits
- Parent code
- H18
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.