Section H40-H42Glaucoma
  1. H40 Glaucoma

    Excludes1

    • absolute glaucoma (H44.51-)
    • congenital glaucoma (Q15.0)
    • traumatic glaucoma due to birth injury (P15.3)
    1. H40.0 Glaucoma suspect

      1. H40.00 Preglaucoma, unspecified

        • H40.001 Preglaucoma, unspecified, right eye
        • H40.002 Preglaucoma, unspecified, left eye
        • H40.003 Preglaucoma, unspecified, bilateral
        • H40.009 Preglaucoma, unspecified, unspecified eye
      2. H40.01 Open angle with borderline findings, low risk

        Inclusion term(s):

        • Open angle, low risk
        • H40.011 Open angle with borderline findings, low risk, right eye
        • H40.012 Open angle with borderline findings, low risk, left eye
        • H40.013 Open angle with borderline findings, low risk, bilateral
        • H40.019 Open angle with borderline findings, low risk, unspecified eye
      3. H40.02 Open angle with borderline findings, high risk

        Inclusion term(s):

        • Open angle, high risk
        • H40.021 Open angle with borderline findings, high risk, right eye
        • H40.022 Open angle with borderline findings, high risk, left eye
        • H40.023 Open angle with borderline findings, high risk, bilateral
        • H40.029 Open angle with borderline findings, high risk, unspecified eye
      4. H40.03 Anatomical narrow angle

        Inclusion term(s):

        • Primary angle closure suspect
        • H40.031 Anatomical narrow angle, right eye
        • H40.032 Anatomical narrow angle, left eye
        • H40.033 Anatomical narrow angle, bilateral
        • H40.039 Anatomical narrow angle, unspecified eye
      5. H40.04 Steroid responder

        • H40.041 Steroid responder, right eye
        • H40.042 Steroid responder, left eye
        • H40.043 Steroid responder, bilateral
        • H40.049 Steroid responder, unspecified eye
      6. H40.05 Ocular hypertension

        • H40.051 Ocular hypertension, right eye
        • H40.052 Ocular hypertension, left eye
        • H40.053 Ocular hypertension, bilateral
        • H40.059 Ocular hypertension, unspecified eye
      7. H40.06 Primary angle closure without glaucoma damage

        • H40.061 Primary angle closure without glaucoma damage, right eye
        • H40.062 Primary angle closure without glaucoma damage, left eye
        • H40.063 Primary angle closure without glaucoma damage, bilateral
        • H40.069 Primary angle closure without glaucoma damage, unspecified eye
    2. H40.1 Open-angle glaucoma

      1. H40.10 Unspecified open-angle glaucoma

      2. H40.11 Primary open-angle glaucoma

        Inclusion term(s):

        • Chronic simple glaucoma
        • H40.111 Primary open-angle glaucoma, right eye
        • H40.112 Primary open-angle glaucoma, left eye
        • H40.113 Primary open-angle glaucoma, bilateral
        • H40.119 Primary open-angle glaucoma, unspecified eye
      3. H40.12 Low-tension glaucoma

        • H40.121 Low-tension glaucoma, right eye
        • H40.122 Low-tension glaucoma, left eye
        • H40.123 Low-tension glaucoma, bilateral
        • H40.129 Low-tension glaucoma, unspecified eye
      4. H40.13 Pigmentary glaucoma

        • H40.131 Pigmentary glaucoma, right eye
        • H40.132 Pigmentary glaucoma, left eye
        • H40.133 Pigmentary glaucoma, bilateral
        • H40.139 Pigmentary glaucoma, unspecified eye
      5. H40.14 Capsular glaucoma with pseudoexfoliation of lens

        • H40.141 Capsular glaucoma with pseudoexfoliation of lens, right eye
        • H40.142 Capsular glaucoma with pseudoexfoliation of lens, left eye
        • H40.143 Capsular glaucoma with pseudoexfoliation of lens, bilateral
        • H40.149 Capsular glaucoma with pseudoexfoliation of lens, unspecified eye
      6. H40.15 Residual stage of open-angle glaucoma

        • H40.151 Residual stage of open-angle glaucoma, right eye
        • H40.152 Residual stage of open-angle glaucoma, left eye
        • H40.153 Residual stage of open-angle glaucoma, bilateral
        • H40.159 Residual stage of open-angle glaucoma, unspecified eye
    3. H40.2 Primary angle-closure glaucoma

      1. H40.20 Unspecified primary angle-closure glaucoma

      2. H40.21 Acute angle-closure glaucoma

        Inclusion term(s):

        • Acute angle-closure glaucoma attack
        • Acute angle-closure glaucoma crisis
        • H40.211 Acute angle-closure glaucoma, right eye
        • H40.212 Acute angle-closure glaucoma, left eye
        • H40.213 Acute angle-closure glaucoma, bilateral
        • H40.219 Acute angle-closure glaucoma, unspecified eye
      3. H40.22 Chronic angle-closure glaucoma

        Inclusion term(s):

        • Chronic primary angle closure glaucoma
        • H40.221 Chronic angle-closure glaucoma, right eye
        • H40.222 Chronic angle-closure glaucoma, left eye
        • H40.223 Chronic angle-closure glaucoma, bilateral
        • H40.229 Chronic angle-closure glaucoma, unspecified eye
      4. H40.23 Intermittent angle-closure glaucoma

        • H40.231 Intermittent angle-closure glaucoma, right eye
        • H40.232 Intermittent angle-closure glaucoma, left eye
        • H40.233 Intermittent angle-closure glaucoma, bilateral
        • H40.239 Intermittent angle-closure glaucoma, unspecified eye
      5. H40.24 Residual stage of angle-closure glaucoma

        • H40.241 Residual stage of angle-closure glaucoma, right eye
        • H40.242 Residual stage of angle-closure glaucoma, left eye
        • H40.243 Residual stage of angle-closure glaucoma, bilateral
        • H40.249 Residual stage of angle-closure glaucoma, unspecified eye
    4. H40.3 Glaucoma secondary to eye trauma

      1. H40.30 Glaucoma secondary to eye trauma, unspecified eye

      2. H40.31 Glaucoma secondary to eye trauma, right eye

      3. H40.32 Glaucoma secondary to eye trauma, left eye

      4. H40.33 Glaucoma secondary to eye trauma, bilateral

    5. H40.4 Glaucoma secondary to eye inflammation

      1. H40.40 Glaucoma secondary to eye inflammation, unspecified eye

      2. H40.41 Glaucoma secondary to eye inflammation, right eye

      3. H40.42 Glaucoma secondary to eye inflammation, left eye

      4. H40.43 Glaucoma secondary to eye inflammation, bilateral

    6. H40.5 Glaucoma secondary to other eye disorders

      1. H40.50 Glaucoma secondary to other eye disorders, unspecified eye

      2. H40.51 Glaucoma secondary to other eye disorders, right eye

      3. H40.52 Glaucoma secondary to other eye disorders, left eye

      4. H40.53 Glaucoma secondary to other eye disorders, bilateral

    7. H40.6 Glaucoma secondary to drugs

      1. H40.60 Glaucoma secondary to drugs, unspecified eye

      2. H40.61 Glaucoma secondary to drugs, right eye

      3. H40.62 Glaucoma secondary to drugs, left eye

      4. H40.63 Glaucoma secondary to drugs, bilateral

    8. H40.8 Other glaucoma

      1. H40.81 Glaucoma with increased episcleral venous pressure

        • H40.811 Glaucoma with increased episcleral venous pressure, right eye
        • H40.812 Glaucoma with increased episcleral venous pressure, left eye
        • H40.813 Glaucoma with increased episcleral venous pressure, bilateral
        • H40.819 Glaucoma with increased episcleral venous pressure, unspecified eye
      2. H40.82 Hypersecretion glaucoma

        • H40.821 Hypersecretion glaucoma, right eye
        • H40.822 Hypersecretion glaucoma, left eye
        • H40.823 Hypersecretion glaucoma, bilateral
        • H40.829 Hypersecretion glaucoma, unspecified eye
      3. H40.83 Aqueous misdirection

        Inclusion term(s):

        • Malignant glaucoma
        • H40.831 Aqueous misdirection, right eye
        • H40.832 Aqueous misdirection, left eye
        • H40.833 Aqueous misdirection, bilateral
        • H40.839 Aqueous misdirection, unspecified eye
      4. H40.89 Other specified glaucoma

    9. H40.9 Unspecified glaucoma

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.