|  H40 |  | Glaucoma   | 
	
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		| Excludes1 | absolute glaucoma (H44.51-) congenital glaucoma (Q15.0)
 traumatic glaucoma due to birth injury (P15.3)
 
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		|  H40.0 |  | Glaucoma suspect |  |  |  | 
	
		|  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 |  |  |  |  |  | 
	
		|  H40.01 |  | Open angle with borderline findings, low risk |  
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		|  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 |  |  |  |  |  | 
	
		|  H40.02 |  | Open angle with borderline findings, high risk |  
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		|  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 |  |  |  |  |  | 
	
		|  H40.03 |  | Anatomical narrow angle |  
		|  |  | 
| 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 |  |  |  |  |  | 
	
		|  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 |  |  |  |  |  | 
	
		|  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 |  |  |  |  |  | 
	
		|  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 |  |  |  | 
|  |  | 
	
		|  H40.1 |  | Open-angle glaucoma |  |  |  | 
	
		|  H40.10 |  | Unspecified open-angle glaucoma |  
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		| char7Note | One of the following 7th characters is to be assigned to code H40.10 to designate the stage of glaucoma 
 |  
		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  H40.11 |  | Primary open-angle glaucoma |  
		|  |  | 
| Chronic simple glaucoma |  
		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.11 to designate the stage of glaucoma 
 |  
		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  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 |  |  |  |  |  | 
	
		|  H40.12 |  | Low-tension glaucoma |  
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		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.12 to designate the stage of glaucoma 
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		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  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 |  |  |  |  |  | 
	
		|  H40.13 |  | Pigmentary glaucoma |  
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		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.13 to designate the stage of glaucoma 
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		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  H40.131 |  | Pigmentary glaucoma, right eye |  |  |  |  | 
	
		|  H40.132 |  | Pigmentary glaucoma, left eye |  |  |  |  | 
	
		|  H40.133 |  | Pigmentary glaucoma, bilateral |  |  |  |  | 
	
		|  H40.139 |  | Pigmentary glaucoma, unspecified eye |  |  |  |  |  | 
	
		|  H40.14 |  | Capsular glaucoma with pseudoexfoliation of lens |  
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		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.14 to designate the stage of glaucoma 
 |  
		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  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 |  |  |  |  |  | 
	
		|  H40.15 |  | Residual stage of open-angle glaucoma |  |  |  | 
	
		|  H40.151 |  | Residual stage of open-angle glaucoma, right eye |  
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		|  H40.152 |  | Residual stage of open-angle glaucoma, left eye |  
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		|  H40.153 |  | Residual stage of open-angle glaucoma, bilateral |  
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		|  H40.159 |  | Residual stage of open-angle glaucoma, unspecified eye |  
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		|  H40.2 |  | Primary angle-closure glaucoma |  
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		|  H40.20 |  | Unspecified primary angle-closure glaucoma |  
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		| char7Note | One of the following 7th characters is to be assigned to code H40.20 to designate the stage of glaucoma 
 |  
		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  H40.21 |  | Acute angle-closure glaucoma |  
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| 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 |  |  |  |  |  | 
	
		|  H40.22 |  | Chronic angle-closure glaucoma |  
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| Chronic primary angle closure glaucoma |  
		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.22 to designate the stage of glaucoma 
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		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  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 |  |  |  |  |  | 
	
		|  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 |  |  |  |  |  | 
	
		|  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 |  |  |  | 
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		|  H40.3 |  | Glaucoma secondary to eye trauma |  
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		| CodeAlso | underlying condition 
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		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.3 to designate the stage of glaucoma 
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		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  H40.30 |  | Glaucoma secondary to eye trauma, unspecified eye |  |  |  |  | 
	
		|  H40.31 |  | Glaucoma secondary to eye trauma, right eye |  |  |  |  | 
	
		|  H40.32 |  | Glaucoma secondary to eye trauma, left eye |  |  |  |  | 
	
		|  H40.33 |  | Glaucoma secondary to eye trauma, bilateral |  |  | 
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		|  H40.4 |  | Glaucoma secondary to eye inflammation |  
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		| CodeAlso | underlying condition 
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		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.4 to designate the stage of glaucoma 
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		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  H40.40 |  | Glaucoma secondary to eye inflammation, unspecified eye |  |  |  |  | 
	
		|  H40.41 |  | Glaucoma secondary to eye inflammation, right eye |  |  |  |  | 
	
		|  H40.42 |  | Glaucoma secondary to eye inflammation, left eye |  |  |  |  | 
	
		|  H40.43 |  | Glaucoma secondary to eye inflammation, bilateral |  |  | 
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		|  H40.5 |  | Glaucoma secondary to other eye disorders |  
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		| CodeAlso | underlying eye disorder 
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		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.5 to designate the stage of glaucoma 
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		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  H40.50 |  | Glaucoma secondary to other eye disorders, unspecified eye |  |  |  |  | 
	
		|  H40.51 |  | Glaucoma secondary to other eye disorders, right eye |  |  |  |  | 
	
		|  H40.52 |  | Glaucoma secondary to other eye disorders, left eye |  |  |  |  | 
	
		|  H40.53 |  | Glaucoma secondary to other eye disorders, bilateral |  |  | 
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		|  H40.6 |  | Glaucoma secondary to drugs |  
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		| UseAdditionalCode | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) 
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		| char7Note | One of the following 7th characters is to be assigned to each code in subcategory H40.6 to designate the stage of glaucoma 
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		| char7Def | 0: stage unspecified 1: mild stage
 2: moderate stage
 3: severe stage
 4: indeterminate stage
 
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		|  H40.60 |  | Glaucoma secondary to drugs, unspecified eye |  |  |  |  | 
	
		|  H40.61 |  | Glaucoma secondary to drugs, right eye |  |  |  |  | 
	
		|  H40.62 |  | Glaucoma secondary to drugs, left eye |  |  |  |  | 
	
		|  H40.63 |  | Glaucoma secondary to drugs, bilateral |  |  | 
|  |  | 
	
		|  H40.8 |  | Other glaucoma |  |  |  | 
	
		|  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 |  |  |  |  |  | 
	
		|  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 |  |  |  |  |  | 
	
		|  H40.83 |  | Aqueous misdirection |  
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		|  H40.831 |  | Aqueous misdirection, right eye |  |  |  |  | 
	
		|  H40.832 |  | Aqueous misdirection, left eye |  |  |  |  | 
	
		|  H40.833 |  | Aqueous misdirection, bilateral |  |  |  |  | 
	
		|  H40.839 |  | Aqueous misdirection, unspecified eye |  |  |  |  |  | 
	
		|  H40.84 |  | Neovascular secondary angle closure glaucoma |  
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		|  H40.841 |  | Neovascular secondary angle closure glaucoma, right eye |  |  |  |  | 
	
		|  H40.842 |  | Neovascular secondary angle closure glaucoma, left eye |  |  |  |  | 
	
		|  H40.843 |  | Neovascular secondary angle closure glaucoma, bilateral |  |  |  |  | 
	
		|  H40.849 |  | Neovascular secondary angle closure glaucoma, unspecified eye |  |  |  |  |  | 
	
		|  H40.89 |  | Other specified glaucoma |  |  | 
|  |  | 
	
		|  H40.9 |  | Unspecified glaucoma |  |