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ICD-10-CM · FY 2026 APRIL UPDATE

H18.5

Hereditary corneal dystrophies

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
H18.50Unspecified hereditary corneal dystrophiesCategory
H18.501Unspecified hereditary corneal dystrophies, right eyeBillable
H18.502Unspecified hereditary corneal dystrophies, left eyeBillable
H18.503Unspecified hereditary corneal dystrophies, bilateralBillable
H18.509Unspecified hereditary corneal dystrophies, unspecified eyeBillable
H18.51Endothelial corneal dystrophyCategory
H18.511Endothelial corneal dystrophy, right eyeBillable
H18.512Endothelial corneal dystrophy, left eyeBillable
H18.513Endothelial corneal dystrophy, bilateralBillable
H18.519Endothelial corneal dystrophy, unspecified eyeBillable
H18.52Epithelial (juvenile) corneal dystrophyCategory
H18.521Epithelial (juvenile) corneal dystrophy, right eyeBillable
H18.522Epithelial (juvenile) corneal dystrophy, left eyeBillable
H18.523Epithelial (juvenile) corneal dystrophy, bilateralBillable
H18.529Epithelial (juvenile) corneal dystrophy, unspecified eyeBillable
H18.53Granular corneal dystrophyCategory
H18.531Granular corneal dystrophy, right eyeBillable
H18.532Granular corneal dystrophy, left eyeBillable
H18.533Granular corneal dystrophy, bilateralBillable
H18.539Granular corneal dystrophy, unspecified eyeBillable
H18.54Lattice corneal dystrophyCategory
H18.541Lattice corneal dystrophy, right eyeBillable
H18.542Lattice corneal dystrophy, left eyeBillable
H18.543Lattice corneal dystrophy, bilateralBillable
H18.549Lattice corneal dystrophy, unspecified eyeBillable
H18.55Macular corneal dystrophyCategory
H18.551Macular corneal dystrophy, right eyeBillable
H18.552Macular corneal dystrophy, left eyeBillable
H18.553Macular corneal dystrophy, bilateralBillable
H18.559Macular corneal dystrophy, unspecified eyeBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.