ICD-10-CM Section · H40-H42
Glaucoma
130 codes in this section
130
Total Codes
63
Billable
67
Header (Non-Billable)
2
Top-Level Codes
About Section H40-H42
Section H40-H42 (H40-H42) covers glaucoma. It sits within the Diseases of the eye and adnexa chapter (H00-H59). This section contains 130 ICD-10-CM codes, 63 billable diagnoses you can submit on a claim, and 67 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in H40-H42
Grouped by 3-character root code. Click any code for full detail.
H40
Glaucoma
128 subcodes
| H40.0 | Glaucoma suspect | Header |
| H40.00 | Preglaucoma, unspecified | Header |
| H40.001 | Preglaucoma, unspecified, right eye | Billable |
| H40.002 | Preglaucoma, unspecified, left eye | Billable |
| H40.003 | Preglaucoma, unspecified, bilateral | Billable |
| H40.009 | Preglaucoma, unspecified, unspecified eye | Billable |
| H40.01 | Open angle with borderline findings, low risk | Header |
| H40.011 | Open angle with borderline findings, low risk, right eye | Billable |
| H40.012 | Open angle with borderline findings, low risk, left eye | Billable |
| H40.013 | Open angle with borderline findings, low risk, bilateral | Billable |
| H40.019 | Open angle with borderline findings, low risk, unspecified eye | Billable |
| H40.02 | Open angle with borderline findings, high risk | Header |
| H40.021 | Open angle with borderline findings, high risk, right eye | Billable |
| H40.022 | Open angle with borderline findings, high risk, left eye | Billable |
| H40.023 | Open angle with borderline findings, high risk, bilateral | Billable |
| H40.029 | Open angle with borderline findings, high risk, unspecified eye | Billable |
| H40.03 | Anatomical narrow angle | Header |
| H40.031 | Anatomical narrow angle, right eye | Billable |
| H40.032 | Anatomical narrow angle, left eye | Billable |
| H40.033 | Anatomical narrow angle, bilateral | Billable |
| H40.039 | Anatomical narrow angle, unspecified eye | Billable |
| H40.04 | Steroid responder | Header |
| H40.041 | Steroid responder, right eye | Billable |
| H40.042 | Steroid responder, left eye | Billable |
| H40.043 | Steroid responder, bilateral | Billable |
| H40.049 | Steroid responder, unspecified eye | Billable |
| H40.05 | Ocular hypertension | Header |
| H40.051 | Ocular hypertension, right eye | Billable |
| H40.052 | Ocular hypertension, left eye | Billable |
| H40.053 | Ocular hypertension, bilateral | Billable |
| H40.059 | Ocular hypertension, unspecified eye | Billable |
| H40.06 | Primary angle closure without glaucoma damage | Header |
| H40.061 | Primary angle closure without glaucoma damage, right eye | Billable |
| H40.062 | Primary angle closure without glaucoma damage, left eye | Billable |
| H40.063 | Primary angle closure without glaucoma damage, bilateral | Billable |
| H40.069 | Primary angle closure without glaucoma damage, unspecified eye | Billable |
| H40.1 | Open-angle glaucoma | Header |
| H40.10 | Unspecified open-angle glaucoma | Header |
| H40.11 | Primary open-angle glaucoma | Header |
| H40.111 | Primary open-angle glaucoma, right eye | Header |
| H40.112 | Primary open-angle glaucoma, left eye | Header |
| H40.113 | Primary open-angle glaucoma, bilateral | Header |
| H40.119 | Primary open-angle glaucoma, unspecified eye | Header |
| H40.12 | Low-tension glaucoma | Header |
| H40.121 | Low-tension glaucoma, right eye | Header |
| H40.122 | Low-tension glaucoma, left eye | Header |
| H40.123 | Low-tension glaucoma, bilateral | Header |
| H40.129 | Low-tension glaucoma, unspecified eye | Header |
| H40.13 | Pigmentary glaucoma | Header |
| H40.131 | Pigmentary glaucoma, right eye | Header |
| H40.132 | Pigmentary glaucoma, left eye | Header |
| H40.133 | Pigmentary glaucoma, bilateral | Header |
| H40.139 | Pigmentary glaucoma, unspecified eye | Header |
| H40.14 | Capsular glaucoma with pseudoexfoliation of lens | Header |
| H40.141 | Capsular glaucoma with pseudoexfoliation of lens, right eye | Header |
| H40.142 | Capsular glaucoma with pseudoexfoliation of lens, left eye | Header |
| H40.143 | Capsular glaucoma with pseudoexfoliation of lens, bilateral | Header |
| H40.149 | Capsular glaucoma with pseudoexfoliation of lens, unspecified eye | Header |
| H40.15 | Residual stage of open-angle glaucoma | Header |
| H40.151 | Residual stage of open-angle glaucoma, right eye | Billable |
| H40.152 | Residual stage of open-angle glaucoma, left eye | Billable |
| H40.153 | Residual stage of open-angle glaucoma, bilateral | Billable |
| H40.159 | Residual stage of open-angle glaucoma, unspecified eye | Billable |
| H40.2 | Primary angle-closure glaucoma | Header |
| H40.20 | Unspecified primary angle-closure glaucoma | Header |
| H40.21 | Acute angle-closure glaucoma | Header |
| H40.211 | Acute angle-closure glaucoma, right eye | Billable |
| H40.212 | Acute angle-closure glaucoma, left eye | Billable |
| H40.213 | Acute angle-closure glaucoma, bilateral | Billable |
| H40.219 | Acute angle-closure glaucoma, unspecified eye | Billable |
| H40.22 | Chronic angle-closure glaucoma | Header |
| H40.221 | Chronic angle-closure glaucoma, right eye | Header |
| H40.222 | Chronic angle-closure glaucoma, left eye | Header |
| H40.223 | Chronic angle-closure glaucoma, bilateral | Header |
| H40.229 | Chronic angle-closure glaucoma, unspecified eye | Header |
| H40.23 | Intermittent angle-closure glaucoma | Header |
| H40.231 | Intermittent angle-closure glaucoma, right eye | Billable |
| H40.232 | Intermittent angle-closure glaucoma, left eye | Billable |
| H40.233 | Intermittent angle-closure glaucoma, bilateral | Billable |
| H40.239 | Intermittent angle-closure glaucoma, unspecified eye | Billable |
| H40.24 | Residual stage of angle-closure glaucoma | Header |
| H40.241 | Residual stage of angle-closure glaucoma, right eye | Billable |
| H40.242 | Residual stage of angle-closure glaucoma, left eye | Billable |
| H40.243 | Residual stage of angle-closure glaucoma, bilateral | Billable |
| H40.249 | Residual stage of angle-closure glaucoma, unspecified eye | Billable |
| H40.3 | Glaucoma secondary to eye trauma | Header |
| H40.30 | Glaucoma secondary to eye trauma, unspecified eye | Header |
| H40.31 | Glaucoma secondary to eye trauma, right eye | Header |
| H40.32 | Glaucoma secondary to eye trauma, left eye | Header |
| H40.33 | Glaucoma secondary to eye trauma, bilateral | Header |
| H40.4 | Glaucoma secondary to eye inflammation | Header |
| H40.40 | Glaucoma secondary to eye inflammation, unspecified eye | Header |
| H40.41 | Glaucoma secondary to eye inflammation, right eye | Header |
| H40.42 | Glaucoma secondary to eye inflammation, left eye | Header |
| H40.43 | Glaucoma secondary to eye inflammation, bilateral | Header |
| H40.5 | Glaucoma secondary to other eye disorders | Header |
| H40.50 | Glaucoma secondary to other eye disorders, unspecified eye | Header |
| H40.51 | Glaucoma secondary to other eye disorders, right eye | Header |
| H40.52 | Glaucoma secondary to other eye disorders, left eye | Header |
| H40.53 | Glaucoma secondary to other eye disorders, bilateral | Header |
| H40.6 | Glaucoma secondary to drugs | Header |
| H40.60 | Glaucoma secondary to drugs, unspecified eye | Header |
| H40.61 | Glaucoma secondary to drugs, right eye | Header |
| H40.62 | Glaucoma secondary to drugs, left eye | Header |
| H40.63 | Glaucoma secondary to drugs, bilateral | Header |
| H40.8 | Other glaucoma | Header |
| H40.81 | Glaucoma with increased episcleral venous pressure | Header |
| H40.811 | Glaucoma with increased episcleral venous pressure, right eye | Billable |
| H40.812 | Glaucoma with increased episcleral venous pressure, left eye | Billable |
| H40.813 | Glaucoma with increased episcleral venous pressure, bilateral | Billable |
| H40.819 | Glaucoma with increased episcleral venous pressure, unspecified eye | Billable |
| H40.82 | Hypersecretion glaucoma | Header |
| H40.821 | Hypersecretion glaucoma, right eye | Billable |
| H40.822 | Hypersecretion glaucoma, left eye | Billable |
| H40.823 | Hypersecretion glaucoma, bilateral | Billable |
| H40.829 | Hypersecretion glaucoma, unspecified eye | Billable |
| H40.83 | Aqueous misdirection | Header |
| H40.831 | Aqueous misdirection, right eye | Billable |
| H40.832 | Aqueous misdirection, left eye | Billable |
| H40.833 | Aqueous misdirection, bilateral | Billable |
| H40.839 | Aqueous misdirection, unspecified eye | Billable |
| H40.84 | Neovascular secondary angle closure glaucoma | Header |
| H40.841 | Neovascular secondary angle closure glaucoma, right eye | Billable |
| H40.842 | Neovascular secondary angle closure glaucoma, left eye | Billable |
| H40.843 | Neovascular secondary angle closure glaucoma, bilateral | Billable |
| H40.849 | Neovascular secondary angle closure glaucoma, unspecified eye | Billable |
| H40.89 | Other specified glaucoma | Billable |
| H40.9 | Unspecified glaucoma | Billable |
H42
Glaucoma in diseases classified elsewhere
0 subcodes
Did this page help?
Quick signal so we know what to improve.
Thanks!
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Sorry to hear that.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team