ICD-10-CM category
H18 Other disorders of cornea
H18 is a category, not a billable code. Report one of the 155 complete codes below.
H18.0…
28 codes
- H18.001Unspecified corneal deposit, right eye
- H18.002Unspecified corneal deposit, left eye
- H18.003Unspecified corneal deposit, bilateral
- H18.009Unspecified corneal deposit, unspecified eye
- H18.011Anterior corneal pigmentations, right eye
- H18.012Anterior corneal pigmentations, left eye
- H18.013Anterior corneal pigmentations, bilateral
- H18.019Anterior corneal pigmentations, unspecified eye
- H18.021Argentous corneal deposits, right eye
- H18.022Argentous corneal deposits, left eye
- H18.023Argentous corneal deposits, bilateral
- H18.029Argentous corneal deposits, unspecified eye
- H18.031Corneal deposits in metabolic disorders, right eye
- H18.032Corneal deposits in metabolic disorders, left eye
- H18.033Corneal deposits in metabolic disorders, bilateral
- H18.039Corneal deposits in metabolic disorders, unspecified eye
- H18.041Kayser-Fleischer ring, right eye
- H18.042Kayser-Fleischer ring, left eye
- H18.043Kayser-Fleischer ring, bilateral
- H18.049Kayser-Fleischer ring, unspecified eye
- H18.051Posterior corneal pigmentations, right eye
- H18.052Posterior corneal pigmentations, left eye
- H18.053Posterior corneal pigmentations, bilateral
- H18.059Posterior corneal pigmentations, unspecified eye
- H18.061Stromal corneal pigmentations, right eye
- H18.062Stromal corneal pigmentations, left eye
- H18.063Stromal corneal pigmentations, bilateral
- H18.069Stromal corneal pigmentations, unspecified eye
H18.1…
4 codes
H18.2…
13 codes
- H18.20Unspecified corneal edema
- H18.211Corneal edema secondary to contact lens, right eye
- H18.212Corneal edema secondary to contact lens, left eye
- H18.213Corneal edema secondary to contact lens, bilateral
- H18.219Corneal edema secondary to contact lens, unspecified eye
- H18.221Idiopathic corneal edema, right eye
- H18.222Idiopathic corneal edema, left eye
- H18.223Idiopathic corneal edema, bilateral
- H18.229Idiopathic corneal edema, unspecified eye
- H18.231Secondary corneal edema, right eye
- H18.232Secondary corneal edema, left eye
- H18.233Secondary corneal edema, bilateral
- H18.239Secondary corneal edema, unspecified eye
H18.3…
13 codes
- H18.30Unspecified corneal membrane change
- H18.311Folds and rupture in Bowman's membrane, right eye
- H18.312Folds and rupture in Bowman's membrane, left eye
- H18.313Folds and rupture in Bowman's membrane, bilateral
- H18.319Folds and rupture in Bowman's membrane, unspecified eye
- H18.321Folds in Descemet's membrane, right eye
- H18.322Folds in Descemet's membrane, left eye
- H18.323Folds in Descemet's membrane, bilateral
- H18.329Folds in Descemet's membrane, unspecified eye
- H18.331Rupture in Descemet's membrane, right eye
- H18.332Rupture in Descemet's membrane, left eye
- H18.333Rupture in Descemet's membrane, bilateral
- H18.339Rupture in Descemet's membrane, unspecified eye
H18.4…
23 codes
- H18.40Unspecified corneal degeneration
- H18.411Arcus senilis, right eye
- H18.412Arcus senilis, left eye
- H18.413Arcus senilis, bilateral
- H18.419Arcus senilis, unspecified eye
- H18.421Band keratopathy, right eye
- H18.422Band keratopathy, left eye
- H18.423Band keratopathy, bilateral
- H18.429Band keratopathy, unspecified eye
- H18.43Other calcerous corneal degeneration
- H18.441Keratomalacia, right eye
- H18.442Keratomalacia, left eye
- H18.443Keratomalacia, bilateral
- H18.449Keratomalacia, unspecified eye
- H18.451Nodular corneal degeneration, right eye
- H18.452Nodular corneal degeneration, left eye
- H18.453Nodular corneal degeneration, bilateral
- H18.459Nodular corneal degeneration, unspecified eye
- H18.461Peripheral corneal degeneration, right eye
- H18.462Peripheral corneal degeneration, left eye
- H18.463Peripheral corneal degeneration, bilateral
- H18.469Peripheral corneal degeneration, unspecified eye
- H18.49Other corneal degeneration
H18.5…
28 codes
- H18.501Unspecified hereditary corneal dystrophies, right eye
- H18.502Unspecified hereditary corneal dystrophies, left eye
- H18.503Unspecified hereditary corneal dystrophies, bilateral
- H18.509Unspecified hereditary corneal dystrophies, unspecified eye
- H18.511Endothelial corneal dystrophy, right eye
- H18.512Endothelial corneal dystrophy, left eye
- H18.513Endothelial corneal dystrophy, bilateral
- H18.519Endothelial corneal dystrophy, unspecified eye
- H18.521Epithelial (juvenile) corneal dystrophy, right eye
- H18.522Epithelial (juvenile) corneal dystrophy, left eye
- H18.523Epithelial (juvenile) corneal dystrophy, bilateral
- H18.529Epithelial (juvenile) corneal dystrophy, unspecified eye
- H18.531Granular corneal dystrophy, right eye
- H18.532Granular corneal dystrophy, left eye
- H18.533Granular corneal dystrophy, bilateral
- H18.539Granular corneal dystrophy, unspecified eye
- H18.541Lattice corneal dystrophy, right eye
- H18.542Lattice corneal dystrophy, left eye
- H18.543Lattice corneal dystrophy, bilateral
- H18.549Lattice corneal dystrophy, unspecified eye
- H18.551Macular corneal dystrophy, right eye
- H18.552Macular corneal dystrophy, left eye
- H18.553Macular corneal dystrophy, bilateral
- H18.559Macular corneal dystrophy, unspecified eye
- H18.591Other hereditary corneal dystrophies, right eye
- H18.592Other hereditary corneal dystrophies, left eye
- H18.593Other hereditary corneal dystrophies, bilateral
- H18.599Other hereditary corneal dystrophies, unspecified eye
H18.6…
12 codes
- H18.601Keratoconus, unspecified, right eye
- H18.602Keratoconus, unspecified, left eye
- H18.603Keratoconus, unspecified, bilateral
- H18.609Keratoconus, unspecified, unspecified eye
- H18.611Keratoconus, stable, right eye
- H18.612Keratoconus, stable, left eye
- H18.613Keratoconus, stable, bilateral
- H18.619Keratoconus, stable, unspecified eye
- H18.621Keratoconus, unstable, right eye
- H18.622Keratoconus, unstable, left eye
- H18.623Keratoconus, unstable, bilateral
- H18.629Keratoconus, unstable, unspecified eye
H18.7…
17 codes
- H18.70Unspecified corneal deformity
- H18.711Corneal ectasia, right eye
- H18.712Corneal ectasia, left eye
- H18.713Corneal ectasia, bilateral
- H18.719Corneal ectasia, unspecified eye
- H18.721Corneal staphyloma, right eye
- H18.722Corneal staphyloma, left eye
- H18.723Corneal staphyloma, bilateral
- H18.729Corneal staphyloma, unspecified eye
- H18.731Descemetocele, right eye
- H18.732Descemetocele, left eye
- H18.733Descemetocele, bilateral
- H18.739Descemetocele, unspecified eye
- H18.791Other corneal deformities, right eye
- H18.792Other corneal deformities, left eye
- H18.793Other corneal deformities, bilateral
- H18.799Other corneal deformities, unspecified eye
H18.8…
16 codes
- H18.811Anesthesia and hypoesthesia of cornea, right eye
- H18.812Anesthesia and hypoesthesia of cornea, left eye
- H18.813Anesthesia and hypoesthesia of cornea, bilateral
- H18.819Anesthesia and hypoesthesia of cornea, unspecified eye
- H18.821Corneal disorder due to contact lens, right eye
- H18.822Corneal disorder due to contact lens, left eye
- H18.823Corneal disorder due to contact lens, bilateral
- H18.829Corneal disorder due to contact lens, unspecified eye
- H18.831Recurrent erosion of cornea, right eye
- H18.832Recurrent erosion of cornea, left eye
- H18.833Recurrent erosion of cornea, bilateral
- H18.839Recurrent erosion of cornea, unspecified eye
- H18.891Other specified disorders of cornea, right eye
- H18.892Other specified disorders of cornea, left eye
- H18.893Other specified disorders of cornea, bilateral
- H18.899Other specified disorders of cornea, unspecified eye
H18.9…
1 code
Outside the US? H18 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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