ICD-10-CM · Chapter 7 · H00-H59
H40 Glaucoma
Excludes 1 (cannot be coded together)
- absolute glaucoma (H44.51-)
- congenital glaucoma (Q15.0)
- traumatic glaucoma due to birth injury (P15.3)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| H40..0 | Glaucoma suspect | No |
| H40..00 | Preglaucoma, unspecified | No |
| H40..001 | Preglaucoma, unspecified, right eye | Yes |
| H40..002 | Preglaucoma, unspecified, left eye | Yes |
| H40..003 | Preglaucoma, unspecified, bilateral | Yes |
| H40..009 | Preglaucoma, unspecified, unspecified eye | Yes |
| H40..01 | Open angle with borderline findings, low risk | No |
| H40..011 | Open angle with borderline findings, low risk, right eye | Yes |
| H40..012 | Open angle with borderline findings, low risk, left eye | Yes |
| H40..013 | Open angle with borderline findings, low risk, bilateral | Yes |
| H40..019 | Open angle with borderline findings, low risk, unspecified eye | Yes |
| H40..02 | Open angle with borderline findings, high risk | No |
| H40..021 | Open angle with borderline findings, high risk, right eye | Yes |
| H40..022 | Open angle with borderline findings, high risk, left eye | Yes |
| H40..023 | Open angle with borderline findings, high risk, bilateral | Yes |
| H40..029 | Open angle with borderline findings, high risk, unspecified eye | Yes |
| H40..03 | Anatomical narrow angle | No |
| H40..031 | Anatomical narrow angle, right eye | Yes |
| H40..032 | Anatomical narrow angle, left eye | Yes |
| H40..033 | Anatomical narrow angle, bilateral | Yes |
| H40..039 | Anatomical narrow angle, unspecified eye | Yes |
| H40..04 | Steroid responder | No |
| H40..041 | Steroid responder, right eye | Yes |
| H40..042 | Steroid responder, left eye | Yes |
| H40..043 | Steroid responder, bilateral | Yes |
| H40..049 | Steroid responder, unspecified eye | Yes |
| H40..05 | Ocular hypertension | No |
| H40..051 | Ocular hypertension, right eye | Yes |
| H40..052 | Ocular hypertension, left eye | Yes |
| H40..053 | Ocular hypertension, bilateral | Yes |
| H40..059 | Ocular hypertension, unspecified eye | Yes |
| H40..06 | Primary angle closure without glaucoma damage | No |
| H40..061 | Primary angle closure without glaucoma damage, right eye | Yes |
| H40..062 | Primary angle closure without glaucoma damage, left eye | Yes |
| H40..063 | Primary angle closure without glaucoma damage, bilateral | Yes |
| H40..069 | Primary angle closure without glaucoma damage, unspecified eye | Yes |
| H40..1 | Open-angle glaucoma | No |
| H40..10 | Unspecified open-angle glaucoma | No |
| H40..11 | Primary open-angle glaucoma | No |
| H40..111 | Primary open-angle glaucoma, right eye | No |
| H40..112 | Primary open-angle glaucoma, left eye | No |
| H40..113 | Primary open-angle glaucoma, bilateral | No |
| H40..119 | Primary open-angle glaucoma, unspecified eye | No |
| H40..12 | Low-tension glaucoma | No |
| H40..121 | Low-tension glaucoma, right eye | No |
| H40..122 | Low-tension glaucoma, left eye | No |
| H40..123 | Low-tension glaucoma, bilateral | No |
| H40..129 | Low-tension glaucoma, unspecified eye | No |
| H40..13 | Pigmentary glaucoma | No |
| H40..131 | Pigmentary glaucoma, right eye | No |
| H40..132 | Pigmentary glaucoma, left eye | No |
| H40..133 | Pigmentary glaucoma, bilateral | No |
| H40..139 | Pigmentary glaucoma, unspecified eye | No |
| H40..14 | Capsular glaucoma with pseudoexfoliation of lens | No |
| H40..141 | Capsular glaucoma with pseudoexfoliation of lens, right eye | No |
| H40..142 | Capsular glaucoma with pseudoexfoliation of lens, left eye | No |
| H40..143 | Capsular glaucoma with pseudoexfoliation of lens, bilateral | No |
| H40..149 | Capsular glaucoma with pseudoexfoliation of lens, unspecified eye | No |
| H40..15 | Residual stage of open-angle glaucoma | No |
| H40..151 | Residual stage of open-angle glaucoma, right eye | Yes |
| H40..152 | Residual stage of open-angle glaucoma, left eye | Yes |
| H40..153 | Residual stage of open-angle glaucoma, bilateral | Yes |
| H40..159 | Residual stage of open-angle glaucoma, unspecified eye | Yes |
| H40..2 | Primary angle-closure glaucoma | No |
| H40..20 | Unspecified primary angle-closure glaucoma | No |
| H40..21 | Acute angle-closure glaucoma | No |
| H40..211 | Acute angle-closure glaucoma, right eye | Yes |
| H40..212 | Acute angle-closure glaucoma, left eye | Yes |
| H40..213 | Acute angle-closure glaucoma, bilateral | Yes |
| H40..219 | Acute angle-closure glaucoma, unspecified eye | Yes |
| H40..22 | Chronic angle-closure glaucoma | No |
| H40..221 | Chronic angle-closure glaucoma, right eye | No |
| H40..222 | Chronic angle-closure glaucoma, left eye | No |
| H40..223 | Chronic angle-closure glaucoma, bilateral | No |
| H40..229 | Chronic angle-closure glaucoma, unspecified eye | No |
| H40..23 | Intermittent angle-closure glaucoma | No |
| H40..231 | Intermittent angle-closure glaucoma, right eye | Yes |
| H40..232 | Intermittent angle-closure glaucoma, left eye | Yes |
| H40..233 | Intermittent angle-closure glaucoma, bilateral | Yes |
| H40..239 | Intermittent angle-closure glaucoma, unspecified eye | Yes |
| H40..24 | Residual stage of angle-closure glaucoma | No |
| H40..241 | Residual stage of angle-closure glaucoma, right eye | Yes |
| H40..242 | Residual stage of angle-closure glaucoma, left eye | Yes |
| H40..243 | Residual stage of angle-closure glaucoma, bilateral | Yes |
| H40..249 | Residual stage of angle-closure glaucoma, unspecified eye | Yes |
| H40..3 | Glaucoma secondary to eye trauma | No |
| H40..30 | Glaucoma secondary to eye trauma, unspecified eye | No |
| H40..31 | Glaucoma secondary to eye trauma, right eye | No |
| H40..32 | Glaucoma secondary to eye trauma, left eye | No |
| H40..33 | Glaucoma secondary to eye trauma, bilateral | No |
| H40..4 | Glaucoma secondary to eye inflammation | No |
| H40..40 | Glaucoma secondary to eye inflammation, unspecified eye | No |
| H40..41 | Glaucoma secondary to eye inflammation, right eye | No |
| H40..42 | Glaucoma secondary to eye inflammation, left eye | No |
| H40..43 | Glaucoma secondary to eye inflammation, bilateral | No |
| H40..5 | Glaucoma secondary to other eye disorders | No |
| H40..50 | Glaucoma secondary to other eye disorders, unspecified eye | No |
| H40..51 | Glaucoma secondary to other eye disorders, right eye | No |
| H40..52 | Glaucoma secondary to other eye disorders, left eye | No |
| H40..53 | Glaucoma secondary to other eye disorders, bilateral | No |
| H40..6 | Glaucoma secondary to drugs | No |
| H40..60 | Glaucoma secondary to drugs, unspecified eye | No |
| H40..61 | Glaucoma secondary to drugs, right eye | No |
| H40..62 | Glaucoma secondary to drugs, left eye | No |
| H40..63 | Glaucoma secondary to drugs, bilateral | No |
| H40..8 | Other glaucoma | No |
| H40..81 | Glaucoma with increased episcleral venous pressure | No |
| H40..811 | Glaucoma with increased episcleral venous pressure, right eye | Yes |
| H40..812 | Glaucoma with increased episcleral venous pressure, left eye | Yes |
| H40..813 | Glaucoma with increased episcleral venous pressure, bilateral | Yes |
| H40..819 | Glaucoma with increased episcleral venous pressure, unspecified eye | Yes |
| H40..82 | Hypersecretion glaucoma | No |
| H40..821 | Hypersecretion glaucoma, right eye | Yes |
| H40..822 | Hypersecretion glaucoma, left eye | Yes |
| H40..823 | Hypersecretion glaucoma, bilateral | Yes |
| H40..829 | Hypersecretion glaucoma, unspecified eye | Yes |
| H40..83 | Aqueous misdirection | No |
| H40..831 | Aqueous misdirection, right eye | Yes |
| H40..832 | Aqueous misdirection, left eye | Yes |
| H40..833 | Aqueous misdirection, bilateral | Yes |
| H40..839 | Aqueous misdirection, unspecified eye | Yes |
| H40..84 | Neovascular secondary angle closure glaucoma | No |
| H40..841 | Neovascular secondary angle closure glaucoma, right eye | Yes |
| H40..842 | Neovascular secondary angle closure glaucoma, left eye | Yes |
| H40..843 | Neovascular secondary angle closure glaucoma, bilateral | Yes |
| H40..849 | Neovascular secondary angle closure glaucoma, unspecified eye | Yes |
| H40..89 | Other specified glaucoma | Yes |
| H40..9 | Unspecified glaucoma | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category H40:
- Glaucoma — Glaucoma
Last reviewed: September 2026