1. ICD-10-CM Codes
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2. H00-H59 Diseases of the eye and adnexa
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3. H40-H42 Glaucoma
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Glaucoma H40- >

• A condition in which there is a build-up of fluid in the eye, which presses on the retina and the optic nerve. The retina is the layer of nerve tissue inside the eye that senses light and sends images along the optic nerve to the brain. Glaucoma can damage the optic nerve and cause loss of vision or blindness.
• A disorder characterized by an increase in pressure in the eyeball due to obstruction of the aqueous humor outflow.
• An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (dictionary of visual science, 4th ed)
• Glaucoma damages the eye's optic nerve. It is a leading cause of blindness in the United States. It usually happens when the fluid pressure inside the eyes slowly rises, damaging the optic nerve. Often there are no symptoms at first, but a comprehensive eye exam can detect it. People at risk should get eye exams at least every two years. They include
  • african americans over age 40
  • people over age 60, especially mexican americans
  • people with a family history of glaucoma
  early treatment can help protect your eyes against vision loss. Treatments usually include prescription eyedrops and/or surgery. nih: national eye institute
• Group of diseases characterized by increased intraocular pressure resulting in damage to the optic nerve and retinal nerve fibers.
• Increased pressure in the eyeball due to obstruction of the outflow of aqueous humor.

• H40 Glaucoma
  • H40.0 Glaucoma suspect
    • H40.00 Preglaucoma, unspecified
      • H40.001 …… right eye
      • H40.002 …… left eye
      • H40.003 …… bilateral
      • H40.009 …… unspecified eye
    • H40.01 Open angle with borderline findings, low risk
      • H40.011 …… right eye
      • H40.012 …… left eye
      • H40.013 …… bilateral
      • H40.019 …… unspecified eye
    • H40.02 Open angle with borderline findings, high risk
      • H40.021 …… right eye
      • H40.022 …… left eye
      • H40.023 …… bilateral
      • H40.029 …… unspecified eye
    • H40.03 Anatomical narrow angle
      • H40.031 …… right eye
      • H40.032 …… left eye
      • H40.033 …… bilateral
      • H40.039 …… unspecified eye
    • H40.04 Steroid responder
      • H40.041 …… right eye
      • H40.042 …… left eye
      • H40.043 …… bilateral
      • H40.049 …… unspecified eye
    • H40.05 Ocular hypertension
      • H40.051 …… right eye
      • H40.052 …… left eye
      • H40.053 …… bilateral
      • H40.059 …… unspecified eye
    • H40.06 Primary angle closure without glaucoma damage
      • H40.061 …… right eye
      • H40.062 …… left eye
      • H40.063 …… bilateral
      • H40.069 …… unspecified eye
  • H40.1 Open-angle glaucoma
    • H40.10 Unspecified open-angle glaucoma
      • H40.10X0 …… stage unspecified
      • H40.10X1 …… mild stage
      • H40.10X2 …… moderate stage
      • H40.10X3 …… severe stage
      • H40.10X4 …… indeterminate stage
    • H40.11 Primary open-angle glaucoma
      • H40.111 Primary open-angle glaucoma, right eye
        • H40.1110 …… stage unspecified
        • H40.1111 …… mild stage
        • H40.1112 …… moderate stage
        • H40.1113 …… severe stage
        • H40.1114 …… indeterminate stage
      • H40.112 Primary open-angle glaucoma, left eye
        • H40.1120 …… stage unspecified
        • H40.1121 …… mild stage
        • H40.1122 …… moderate stage
        • H40.1123 …… severe stage
        • H40.1124 …… indeterminate stage
      • H40.113 Primary open-angle glaucoma, bilateral
        • H40.1130 …… stage unspecified
        • H40.1131 …… mild stage
        • H40.1132 …… moderate stage
        • H40.1133 …… severe stage
        • H40.1134 …… indeterminate stage
      • H40.119 Primary open-angle glaucoma, unspecified eye
        • H40.1190 …… stage unspecified
        • H40.1191 …… mild stage
        • H40.1192 …… moderate stage
        • H40.1193 …… severe stage
        • H40.1194 …… indeterminate stage
    • H40.12 Low-tension glaucoma
      • H40.121 Low-tension glaucoma, right eye
        • H40.1210 …… stage unspecified
        • H40.1211 …… mild stage
        • H40.1212 …… moderate stage
        • H40.1213 …… severe stage
        • H40.1214 …… indeterminate stage
      • H40.122 Low-tension glaucoma, left eye
        • H40.1220 …… stage unspecified
        • H40.1221 …… mild stage
        • H40.1222 …… moderate stage
        • H40.1223 …… severe stage
        • H40.1224 …… indeterminate stage
      • H40.123 Low-tension glaucoma, bilateral
        • H40.1230 …… stage unspecified
        • H40.1231 …… mild stage
        • H40.1232 …… moderate stage
        • H40.1233 …… severe stage
        • H40.1234 …… indeterminate stage
      • H40.129 Low-tension glaucoma, unspecified eye
        • H40.1290 …… stage unspecified
        • H40.1291 …… mild stage
        • H40.1292 …… moderate stage
        • H40.1293 …… severe stage
        • H40.1294 …… indeterminate stage
    • H40.13 Pigmentary glaucoma
      • H40.131 Pigmentary glaucoma, right eye
        • H40.1310 …… stage unspecified
        • H40.1311 …… mild stage
        • H40.1312 …… moderate stage
        • H40.1313 …… severe stage
        • H40.1314 …… indeterminate stage
      • H40.132 Pigmentary glaucoma, left eye
        • H40.1320 …… stage unspecified
        • H40.1321 …… mild stage
        • H40.1322 …… moderate stage
        • H40.1323 …… severe stage
        • H40.1324 …… indeterminate stage
      • H40.133 Pigmentary glaucoma, bilateral
        • H40.1330 …… stage unspecified
        • H40.1331 …… mild stage
        • H40.1332 …… moderate stage
        • H40.1333 …… severe stage
        • H40.1334 …… indeterminate stage
      • H40.139 Pigmentary glaucoma, unspecified eye
        • H40.1390 …… stage unspecified
        • H40.1391 …… mild stage
        • H40.1392 …… moderate stage
        • H40.1393 …… severe stage
        • H40.1394 …… indeterminate stage
    • H40.14 Capsular glaucoma with pseudoexfoliation of lens
      • H40.141 Capsular glaucoma with pseudoexfoliation of lens, right eye
        • H40.1410 …… stage unspecified
        • H40.1411 …… mild stage
        • H40.1412 …… moderate stage
        • H40.1413 …… severe stage
        • H40.1414 …… indeterminate stage
      • H40.142 Capsular glaucoma with pseudoexfoliation of lens, left eye
        • H40.1420 …… stage unspecified
        • H40.1421 …… mild stage
        • H40.1422 …… moderate stage
        • H40.1423 …… severe stage
        • H40.1424 …… indeterminate stage
      • H40.143 Capsular glaucoma with pseudoexfoliation of lens, bilateral
        • H40.1430 …… stage unspecified
        • H40.1431 …… mild stage
        • H40.1432 …… moderate stage
        • H40.1433 …… severe stage
        • H40.1434 …… indeterminate stage
      • H40.149 Capsular glaucoma with pseudoexfoliation of lens, unspecified eye
        • H40.1490 …… stage unspecified
        • H40.1491 …… mild stage
        • H40.1492 …… moderate stage
        • H40.1493 …… severe stage
        • H40.1494 …… indeterminate stage
    • H40.15 Residual stage of open-angle glaucoma
      • H40.151 …… right eye
      • H40.152 …… left eye
      • H40.153 …… bilateral
      • H40.159 …… unspecified eye
  • H40.2 Primary angle-closure glaucoma
    • H40.20 Unspecified primary angle-closure glaucoma
      • H40.20X0 …… stage unspecified
      • H40.20X1 …… mild stage
      • H40.20X2 …… moderate stage
      • H40.20X3 …… severe stage
      • H40.20X4 …… indeterminate stage
    • H40.21 Acute angle-closure glaucoma
      • H40.211 …… right eye
      • H40.212 …… left eye
      • H40.213 …… bilateral
      • H40.219 …… unspecified eye
    • H40.22 Chronic angle-closure glaucoma
      • H40.221 Chronic angle-closure glaucoma, right eye
        • H40.2210 …… stage unspecified
        • H40.2211 …… mild stage
        • H40.2212 …… moderate stage
        • H40.2213 …… severe stage
        • H40.2214 …… indeterminate stage
      • H40.222 Chronic angle-closure glaucoma, left eye
        • H40.2220 …… stage unspecified
        • H40.2221 …… mild stage
        • H40.2222 …… moderate stage
        • H40.2223 …… severe stage
        • H40.2224 …… indeterminate stage
      • H40.223 Chronic angle-closure glaucoma, bilateral
        • H40.2230 …… stage unspecified
        • H40.2231 …… mild stage
        • H40.2232 …… moderate stage
        • H40.2233 …… severe stage
        • H40.2234 …… indeterminate stage
      • H40.229 Chronic angle-closure glaucoma, unspecified eye
        • H40.2290 …… stage unspecified
        • H40.2291 …… mild stage
        • H40.2292 …… moderate stage
        • H40.2293 …… severe stage
        • H40.2294 …… indeterminate stage
    • H40.23 Intermittent angle-closure glaucoma
      • H40.231 …… right eye
      • H40.232 …… left eye
      • H40.233 …… bilateral
      • H40.239 …… unspecified eye
    • H40.24 Residual stage of angle-closure glaucoma
      • H40.241 …… right eye
      • H40.242 …… left eye
      • H40.243 …… bilateral
      • H40.249 …… unspecified eye
  • H40.3 Glaucoma secondary to eye trauma
    • H40.30 Glaucoma secondary to eye trauma, unspecified eye
      • H40.30X0 …… stage unspecified
      • H40.30X1 …… mild stage
      • H40.30X2 …… moderate stage
      • H40.30X3 …… severe stage
      • H40.30X4 …… indeterminate stage
    • H40.31 Glaucoma secondary to eye trauma, right eye
      • H40.31X0 …… stage unspecified
      • H40.31X1 …… mild stage
      • H40.31X2 …… moderate stage
      • H40.31X3 …… severe stage
      • H40.31X4 …… indeterminate stage
    • H40.32 Glaucoma secondary to eye trauma, left eye
      • H40.32X0 …… stage unspecified
      • H40.32X1 …… mild stage
      • H40.32X2 …… moderate stage
      • H40.32X3 …… severe stage
      • H40.32X4 …… indeterminate stage
    • H40.33 Glaucoma secondary to eye trauma, bilateral
      • H40.33X0 …… stage unspecified
      • H40.33X1 …… mild stage
      • H40.33X2 …… moderate stage
      • H40.33X3 …… severe stage
      • H40.33X4 …… indeterminate stage
  • H40.4 Glaucoma secondary to eye inflammation
    • H40.40 Glaucoma secondary to eye inflammation, unspecified eye
      • H40.40X0 …… stage unspecified
      • H40.40X1 …… mild stage
      • H40.40X2 …… moderate stage
      • H40.40X3 …… severe stage
      • H40.40X4 …… indeterminate stage
    • H40.41 Glaucoma secondary to eye inflammation, right eye
      • H40.41X0 …… stage unspecified
      • H40.41X1 …… mild stage
      • H40.41X2 …… moderate stage
      • H40.41X3 …… severe stage
      • H40.41X4 …… indeterminate stage
    • H40.42 Glaucoma secondary to eye inflammation, left eye
      • H40.42X0 …… stage unspecified
      • H40.42X1 …… mild stage
      • H40.42X2 …… moderate stage
      • H40.42X3 …… severe stage
      • H40.42X4 …… indeterminate stage
    • H40.43 Glaucoma secondary to eye inflammation, bilateral
      • H40.43X0 …… stage unspecified
      • H40.43X1 …… mild stage
      • H40.43X2 …… moderate stage
      • H40.43X3 …… severe stage
      • H40.43X4 …… indeterminate stage
  • H40.5 Glaucoma secondary to other eye disorders
    • H40.50 Glaucoma secondary to other eye disorders, unspecified eye
      • H40.50X0 …… stage unspecified
      • H40.50X1 …… mild stage
      • H40.50X2 …… moderate stage
      • H40.50X3 …… severe stage
      • H40.50X4 …… indeterminate stage
    • H40.51 Glaucoma secondary to other eye disorders, right eye
      • H40.51X0 …… stage unspecified
      • H40.51X1 …… mild stage
      • H40.51X2 …… moderate stage
      • H40.51X3 …… severe stage
      • H40.51X4 …… indeterminate stage
    • H40.52 Glaucoma secondary to other eye disorders, left eye
      • H40.52X0 …… stage unspecified
      • H40.52X1 …… mild stage
      • H40.52X2 …… moderate stage
      • H40.52X3 …… severe stage
      • H40.52X4 …… indeterminate stage
    • H40.53 Glaucoma secondary to other eye disorders, bilateral
      • H40.53X0 …… stage unspecified
      • H40.53X1 …… mild stage
      • H40.53X2 …… moderate stage
      • H40.53X3 …… severe stage
      • H40.53X4 …… indeterminate stage
  • H40.6 Glaucoma secondary to drugs
    • H40.60 Glaucoma secondary to drugs, unspecified eye
      • H40.60X0 …… stage unspecified
      • H40.60X1 …… mild stage
      • H40.60X2 …… moderate stage
      • H40.60X3 …… severe stage
      • H40.60X4 …… indeterminate stage
    • H40.61 Glaucoma secondary to drugs, right eye
      • H40.61X0 …… stage unspecified
      • H40.61X1 …… mild stage
      • H40.61X2 …… moderate stage
      • H40.61X3 …… severe stage
      • H40.61X4 …… indeterminate stage
    • H40.62 Glaucoma secondary to drugs, left eye
      • H40.62X0 …… stage unspecified
      • H40.62X1 …… mild stage
      • H40.62X2 …… moderate stage
      • H40.62X3 …… severe stage
      • H40.62X4 …… indeterminate stage
    • H40.63 Glaucoma secondary to drugs, bilateral
      • H40.63X0 …… stage unspecified
      • H40.63X1 …… mild stage
      • H40.63X2 …… moderate stage
      • H40.63X3 …… severe stage
      • H40.63X4 …… indeterminate stage
  • H40.8 Other glaucoma
    • H40.81 Glaucoma with increased episcleral venous pressure
      • H40.811 …… right eye
      • H40.812 …… left eye
      • H40.813 …… bilateral
      • H40.819 …… unspecified eye
    • H40.82 Hypersecretion glaucoma
      • H40.821 …… right eye
      • H40.822 …… left eye
      • H40.823 …… bilateral
      • H40.829 …… unspecified eye
    • H40.83 Aqueous misdirection
      • H40.831 …… right eye
      • H40.832 …… left eye
      • H40.833 …… bilateral
      • H40.839 …… unspecified eye
    • H40.89 Other specified glaucoma
  • H40.9 Unspecified glaucoma