1. H18 Other disorders of cornea

    1. H18.0 Corneal pigmentations and deposits

      1. H18.00 Unspecified corneal deposit

        • H18.001 Unspecified corneal deposit, right eye
        • H18.002 Unspecified corneal deposit, left eye
        • H18.003 Unspecified corneal deposit, bilateral
        • H18.009 Unspecified corneal deposit, unspecified eye
      2. H18.01 Anterior corneal pigmentations

        Inclusion term(s):

        • Staehli's line
        • H18.011 Anterior corneal pigmentations, right eye
        • H18.012 Anterior corneal pigmentations, left eye
        • H18.013 Anterior corneal pigmentations, bilateral
        • H18.019 Anterior corneal pigmentations, unspecified eye
      3. H18.02 Argentous corneal deposits

        • H18.021 Argentous corneal deposits, right eye
        • H18.022 Argentous corneal deposits, left eye
        • H18.023 Argentous corneal deposits, bilateral
        • H18.029 Argentous corneal deposits, unspecified eye
      4. H18.03 Corneal deposits in metabolic disorders

        • H18.031 Corneal deposits in metabolic disorders, right eye
        • H18.032 Corneal deposits in metabolic disorders, left eye
        • H18.033 Corneal deposits in metabolic disorders, bilateral
        • H18.039 Corneal deposits in metabolic disorders, unspecified eye
      5. H18.04 Kayser-Fleischer ring

        • H18.041 Kayser-Fleischer ring, right eye
        • H18.042 Kayser-Fleischer ring, left eye
        • H18.043 Kayser-Fleischer ring, bilateral
        • H18.049 Kayser-Fleischer ring, unspecified eye
      6. H18.05 Posterior corneal pigmentations

        Inclusion term(s):

        • Krukenberg's spindle
        • H18.051 Posterior corneal pigmentations, right eye
        • H18.052 Posterior corneal pigmentations, left eye
        • H18.053 Posterior corneal pigmentations, bilateral
        • H18.059 Posterior corneal pigmentations, unspecified eye
      7. H18.06 Stromal corneal pigmentations

        Inclusion term(s):

        • Hematocornea
        • H18.061 Stromal corneal pigmentations, right eye
        • H18.062 Stromal corneal pigmentations, left eye
        • H18.063 Stromal corneal pigmentations, bilateral
        • H18.069 Stromal corneal pigmentations, unspecified eye
    2. H18.1 Bullous keratopathy

      1. H18.10 Bullous keratopathy, unspecified eye

      2. H18.11 Bullous keratopathy, right eye

      3. H18.12 Bullous keratopathy, left eye

      4. H18.13 Bullous keratopathy, bilateral

    3. H18.2 Other and unspecified corneal edema

      1. H18.20 Unspecified corneal edema

      2. H18.21 Corneal edema secondary to contact lens

        • H18.211 Corneal edema secondary to contact lens, right eye
        • H18.212 Corneal edema secondary to contact lens, left eye
        • H18.213 Corneal edema secondary to contact lens, bilateral
        • H18.219 Corneal edema secondary to contact lens, unspecified eye
      3. H18.22 Idiopathic corneal edema

        • H18.221 Idiopathic corneal edema, right eye
        • H18.222 Idiopathic corneal edema, left eye
        • H18.223 Idiopathic corneal edema, bilateral
        • H18.229 Idiopathic corneal edema, unspecified eye
      4. H18.23 Secondary corneal edema

        • H18.231 Secondary corneal edema, right eye
        • H18.232 Secondary corneal edema, left eye
        • H18.233 Secondary corneal edema, bilateral
        • H18.239 Secondary corneal edema, unspecified eye
    4. H18.3 Changes of corneal membranes

      1. H18.30 Unspecified corneal membrane change

      2. H18.31 Folds and rupture in Bowman's membrane

        • H18.311 Folds and rupture in Bowman's membrane, right eye
        • H18.312 Folds and rupture in Bowman's membrane, left eye
        • H18.313 Folds and rupture in Bowman's membrane, bilateral
        • H18.319 Folds and rupture in Bowman's membrane, unspecified eye
      3. H18.32 Folds in Descemet's membrane

        • H18.321 Folds in Descemet's membrane, right eye
        • H18.322 Folds in Descemet's membrane, left eye
        • H18.323 Folds in Descemet's membrane, bilateral
        • H18.329 Folds in Descemet's membrane, unspecified eye
      4. H18.33 Rupture in Descemet's membrane

        • H18.331 Rupture in Descemet's membrane, right eye
        • H18.332 Rupture in Descemet's membrane, left eye
        • H18.333 Rupture in Descemet's membrane, bilateral
        • H18.339 Rupture in Descemet's membrane, unspecified eye
    5. H18.4 Corneal degeneration

      1. H18.40 Unspecified corneal degeneration

      2. H18.41 Arcus senilis

        Inclusion term(s):

        • Senile corneal changes
      3. H18.42 Band keratopathy

        • H18.421 Band keratopathy, right eye
        • H18.422 Band keratopathy, left eye
        • H18.423 Band keratopathy, bilateral
        • H18.429 Band keratopathy, unspecified eye
      4. H18.43 Other calcerous corneal degeneration

      5. H18.44 Keratomalacia

      6. H18.45 Nodular corneal degeneration

        • H18.451 Nodular corneal degeneration, right eye
        • H18.452 Nodular corneal degeneration, left eye
        • H18.453 Nodular corneal degeneration, bilateral
        • H18.459 Nodular corneal degeneration, unspecified eye
      7. H18.46 Peripheral corneal degeneration

        • H18.461 Peripheral corneal degeneration, right eye
        • H18.462 Peripheral corneal degeneration, left eye
        • H18.463 Peripheral corneal degeneration, bilateral
        • H18.469 Peripheral corneal degeneration, unspecified eye
      8. H18.49 Other corneal degeneration

    6. H18.5 Hereditary corneal dystrophies

      1. H18.50 Unspecified hereditary corneal dystrophies

        • H18.501 Unspecified hereditary corneal dystrophies, right eye
        • H18.502 Unspecified hereditary corneal dystrophies, left eye
        • H18.503 Unspecified hereditary corneal dystrophies, bilateral
        • H18.509 Unspecified hereditary corneal dystrophies, unspecified eye
      2. H18.51 Endothelial corneal dystrophy

        Inclusion term(s):

        • Fuchs' dystrophy
        • H18.511 Endothelial corneal dystrophy, right eye
        • H18.512 Endothelial corneal dystrophy, left eye
        • H18.513 Endothelial corneal dystrophy, bilateral
        • H18.519 Endothelial corneal dystrophy, unspecified eye
      3. H18.52 Epithelial (juvenile) corneal dystrophy

        • H18.521 Epithelial (juvenile) corneal dystrophy, right eye
        • H18.522 Epithelial (juvenile) corneal dystrophy, left eye
        • H18.523 Epithelial (juvenile) corneal dystrophy, bilateral
        • H18.529 Epithelial (juvenile) corneal dystrophy, unspecified eye
      4. H18.53 Granular corneal dystrophy

        • H18.531 Granular corneal dystrophy, right eye
        • H18.532 Granular corneal dystrophy, left eye
        • H18.533 Granular corneal dystrophy, bilateral
        • H18.539 Granular corneal dystrophy, unspecified eye
      5. H18.54 Lattice corneal dystrophy

        • H18.541 Lattice corneal dystrophy, right eye
        • H18.542 Lattice corneal dystrophy, left eye
        • H18.543 Lattice corneal dystrophy, bilateral
        • H18.549 Lattice corneal dystrophy, unspecified eye
      6. H18.55 Macular corneal dystrophy

        • H18.551 Macular corneal dystrophy, right eye
        • H18.552 Macular corneal dystrophy, left eye
        • H18.553 Macular corneal dystrophy, bilateral
        • H18.559 Macular corneal dystrophy, unspecified eye
      7. H18.59 Other hereditary corneal dystrophies

        • H18.591 Other hereditary corneal dystrophies, right eye
        • H18.592 Other hereditary corneal dystrophies, left eye
        • H18.593 Other hereditary corneal dystrophies, bilateral
        • H18.599 Other hereditary corneal dystrophies, unspecified eye
    7. H18.6 Keratoconus

      1. H18.60 Keratoconus, unspecified

        • H18.601 Keratoconus, unspecified, right eye
        • H18.602 Keratoconus, unspecified, left eye
        • H18.603 Keratoconus, unspecified, bilateral
        • H18.609 Keratoconus, unspecified, unspecified eye
      2. H18.61 Keratoconus, stable

        • H18.611 Keratoconus, stable, right eye
        • H18.612 Keratoconus, stable, left eye
        • H18.613 Keratoconus, stable, bilateral
        • H18.619 Keratoconus, stable, unspecified eye
      3. H18.62 Keratoconus, unstable

        Inclusion term(s):

        • Acute hydrops
        • H18.621 Keratoconus, unstable, right eye
        • H18.622 Keratoconus, unstable, left eye
        • H18.623 Keratoconus, unstable, bilateral
        • H18.629 Keratoconus, unstable, unspecified eye
    8. H18.7 Other and unspecified corneal deformities

      1. H18.70 Unspecified corneal deformity

      2. H18.71 Corneal ectasia

        • H18.711 Corneal ectasia, right eye
        • H18.712 Corneal ectasia, left eye
        • H18.713 Corneal ectasia, bilateral
        • H18.719 Corneal ectasia, unspecified eye
      3. H18.72 Corneal staphyloma

        • H18.721 Corneal staphyloma, right eye
        • H18.722 Corneal staphyloma, left eye
        • H18.723 Corneal staphyloma, bilateral
        • H18.729 Corneal staphyloma, unspecified eye
      4. H18.73 Descemetocele

      5. H18.79 Other corneal deformities

        • H18.791 Other corneal deformities, right eye
        • H18.792 Other corneal deformities, left eye
        • H18.793 Other corneal deformities, bilateral
        • H18.799 Other corneal deformities, unspecified eye
    9. H18.8 Other specified disorders of cornea

      1. H18.81 Anesthesia and hypoesthesia of cornea

        • H18.811 Anesthesia and hypoesthesia of cornea, right eye
        • H18.812 Anesthesia and hypoesthesia of cornea, left eye
        • H18.813 Anesthesia and hypoesthesia of cornea, bilateral
        • H18.819 Anesthesia and hypoesthesia of cornea, unspecified eye
      2. H18.82 Corneal disorder due to contact lens

        • H18.821 Corneal disorder due to contact lens, right eye
        • H18.822 Corneal disorder due to contact lens, left eye
        • H18.823 Corneal disorder due to contact lens, bilateral
        • H18.829 Corneal disorder due to contact lens, unspecified eye
      3. H18.83 Recurrent erosion of cornea

        • H18.831 Recurrent erosion of cornea, right eye
        • H18.832 Recurrent erosion of cornea, left eye
        • H18.833 Recurrent erosion of cornea, bilateral
        • H18.839 Recurrent erosion of cornea, unspecified eye
      4. H18.89 Other specified disorders of cornea

        • H18.891 Other specified disorders of cornea, right eye
        • H18.892 Other specified disorders of cornea, left eye
        • H18.893 Other specified disorders of cornea, bilateral
        • H18.899 Other specified disorders of cornea, unspecified eye
    10. H18.9 Unspecified disorder of cornea

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.