H40Not billable, use a more specific code below
Glaucoma
In Glaucoma (H40-H42), chapter 7: Diseases of the Eye and Adnexa
252 billable codes under H40: 4 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
- Section I.C.7.a Glaucoma (page 48), covers H40
Assign as many H40 codes as needed for type, eye, and stage, using a bilateral code when both eyes match. Code the highest stage reached during an admission; use 7th character 4 for indeterminate, 0 for undocumented stage.
Other Chapter 7 topics:
- Blindness (page 49)
All codes under H40
H40 can't be used on a claim. Pick a billable code below; grey headings group them.
- H40.0Glaucoma suspect
- H40.00Preglaucoma, unspecified
- H40.001Preglaucoma, unspecified, right eye
- H40.002Preglaucoma, unspecified, left eye
- H40.003Preglaucoma, unspecified, bilateral
- H40.009Preglaucoma, unspecified, unspecified eye
- H40.01Open angle with borderline findings, low risk
- H40.011Open angle with borderline findings, low risk, right eye
- H40.012Open angle with borderline findings, low risk, left eye
- H40.013Open angle with borderline findings, low risk, bilateral
- H40.019Open angle with borderline findings, low risk, unspecified eye
- H40.02Open angle with borderline findings, high risk
- H40.021Open angle with borderline findings, high risk, right eye
- H40.022Open angle with borderline findings, high risk, left eye
- H40.023Open angle with borderline findings, high risk, bilateral
- H40.029Open angle with borderline findings, high risk, unspecified eye
- H40.03Anatomical narrow angle
- H40.031Anatomical narrow angle, right eye
- H40.032Anatomical narrow angle, left eye
- H40.033Anatomical narrow angle, bilateral
- H40.039Anatomical narrow angle, unspecified eye
- H40.04Steroid responder
- H40.041Steroid responder, right eye
- H40.042Steroid responder, left eye
- H40.043Steroid responder, bilateral
- H40.049Steroid responder, unspecified eye
- H40.05Ocular hypertension
- H40.051Ocular hypertension, right eye
- H40.052Ocular hypertension, left eye
- H40.053Ocular hypertension, bilateral
- H40.059Ocular hypertension, unspecified eye
- H40.06Primary angle closure without glaucoma damage
- H40.061Primary angle closure without glaucoma damage, right eye
- H40.062Primary angle closure without glaucoma damage, left eye
- H40.063Primary angle closure without glaucoma damage, bilateral
- H40.069Primary angle closure without glaucoma damage, unspecified eye
- H40.1Open-angle glaucoma
- H40.10Unspecified open-angle glaucoma
- H40.10X0Unspecified open-angle glaucoma, stage unspecified
- H40.10X1Unspecified open-angle glaucoma, mild stage
- H40.10X2Unspecified open-angle glaucoma, moderate stage
- H40.10X3Unspecified open-angle glaucoma, severe stage
- H40.10X4Unspecified open-angle glaucoma, indeterminate stage
- H40.11Primary open-angle glaucoma
- H40.111Primary open-angle glaucoma, right eye
- H40.1110Primary open-angle glaucoma, right eye, stage unspecified
- H40.1111Primary open-angle glaucoma, right eye, mild stage
- H40.1112Primary open-angle glaucoma, right eye, moderate stage
- H40.1113Primary open-angle glaucoma, right eye, severe stage
- H40.1114Primary open-angle glaucoma, right eye, indeterminate stage
- H40.112Primary open-angle glaucoma, left eye
- H40.1120Primary open-angle glaucoma, left eye, stage unspecified
- H40.1121Primary open-angle glaucoma, left eye, mild stage
- H40.1122Primary open-angle glaucoma, left eye, moderate stage
- H40.1123Primary open-angle glaucoma, left eye, severe stage
- H40.1124Primary open-angle glaucoma, left eye, indeterminate stage
- H40.113Primary open-angle glaucoma, bilateral
- H40.1130Primary open-angle glaucoma, bilateral, stage unspecified
- H40.1131Primary open-angle glaucoma, bilateral, mild stage
- H40.1132Primary open-angle glaucoma, bilateral, moderate stage
- H40.1133Primary open-angle glaucoma, bilateral, severe stage
- H40.1134Primary open-angle glaucoma, bilateral, indeterminate stage
- H40.119Primary open-angle glaucoma, unspecified eye
- H40.1190Primary open-angle glaucoma, unspecified eye, stage unspecified
- H40.1191Primary open-angle glaucoma, unspecified eye, mild stage
- H40.1192Primary open-angle glaucoma, unspecified eye, moderate stage
- H40.1193Primary open-angle glaucoma, unspecified eye, severe stage
- H40.1194Primary open-angle glaucoma, unspecified eye, indeterminate stage
- H40.12Low-tension glaucoma
- H40.121Low-tension glaucoma, right eye
- H40.1210Low-tension glaucoma, right eye, stage unspecified
- H40.1211Low-tension glaucoma, right eye, mild stage
- H40.1212Low-tension glaucoma, right eye, moderate stage
- H40.1213Low-tension glaucoma, right eye, severe stage
- H40.1214Low-tension glaucoma, right eye, indeterminate stage
- H40.122Low-tension glaucoma, left eye
- H40.1220Low-tension glaucoma, left eye, stage unspecified
- H40.1221Low-tension glaucoma, left eye, mild stage
- H40.1222Low-tension glaucoma, left eye, moderate stage
- H40.1223Low-tension glaucoma, left eye, severe stage
- H40.1224Low-tension glaucoma, left eye, indeterminate stage
- H40.123Low-tension glaucoma, bilateral
- H40.1230Low-tension glaucoma, bilateral, stage unspecified
- H40.1231Low-tension glaucoma, bilateral, mild stage
- H40.1232Low-tension glaucoma, bilateral, moderate stage
- H40.1233Low-tension glaucoma, bilateral, severe stage
- H40.1234Low-tension glaucoma, bilateral, indeterminate stage
- H40.129Low-tension glaucoma, unspecified eye
- H40.1290Low-tension glaucoma, unspecified eye, stage unspecified
- H40.1291Low-tension glaucoma, unspecified eye, mild stage
- H40.1292Low-tension glaucoma, unspecified eye, moderate stage
- H40.1293Low-tension glaucoma, unspecified eye, severe stage
- H40.1294Low-tension glaucoma, unspecified eye, indeterminate stage
- H40.13Pigmentary glaucoma
- H40.131Pigmentary glaucoma, right eye
- H40.1310Pigmentary glaucoma, right eye, stage unspecified
- H40.1311Pigmentary glaucoma, right eye, mild stage
- H40.1312Pigmentary glaucoma, right eye, moderate stage
- H40.1313Pigmentary glaucoma, right eye, severe stage
- H40.1314Pigmentary glaucoma, right eye, indeterminate stage
- H40.132Pigmentary glaucoma, left eye
- H40.1320Pigmentary glaucoma, left eye, stage unspecified
- H40.1321Pigmentary glaucoma, left eye, mild stage
- H40.1322Pigmentary glaucoma, left eye, moderate stage
- H40.1323Pigmentary glaucoma, left eye, severe stage
- H40.1324Pigmentary glaucoma, left eye, indeterminate stage
- H40.133Pigmentary glaucoma, bilateral
- H40.1330Pigmentary glaucoma, bilateral, stage unspecified
- H40.1331Pigmentary glaucoma, bilateral, mild stage
- H40.1332Pigmentary glaucoma, bilateral, moderate stage
- H40.1333Pigmentary glaucoma, bilateral, severe stage
- H40.1334Pigmentary glaucoma, bilateral, indeterminate stage
- H40.139Pigmentary glaucoma, unspecified eye
- H40.1390Pigmentary glaucoma, unspecified eye, stage unspecified
- H40.1391Pigmentary glaucoma, unspecified eye, mild stage
- H40.1392Pigmentary glaucoma, unspecified eye, moderate stage
- H40.1393Pigmentary glaucoma, unspecified eye, severe stage
- H40.1394Pigmentary glaucoma, unspecified eye, indeterminate stage
- H40.14Capsular glaucoma with pseudoexfoliation of lens
- H40.141Capsular glaucoma with pseudoexfoliation of lens, right eye
- H40.1410Capsular glaucoma with pseudoexfoliation of lens, right eye, stage unspecified
- H40.1411Capsular glaucoma with pseudoexfoliation of lens, right eye, mild stage
- H40.1412Capsular glaucoma with pseudoexfoliation of lens, right eye, moderate stage
- H40.1413Capsular glaucoma with pseudoexfoliation of lens, right eye, severe stage
- H40.1414Capsular glaucoma with pseudoexfoliation of lens, right eye, indeterminate stage
- H40.142Capsular glaucoma with pseudoexfoliation of lens, left eye
- H40.1420Capsular glaucoma with pseudoexfoliation of lens, left eye, stage unspecified
- H40.1421Capsular glaucoma with pseudoexfoliation of lens, left eye, mild stage
- H40.1422Capsular glaucoma with pseudoexfoliation of lens, left eye, moderate stage
- H40.1423Capsular glaucoma with pseudoexfoliation of lens, left eye, severe stage
- H40.1424Capsular glaucoma with pseudoexfoliation of lens, left eye, indeterminate stage
- H40.143Capsular glaucoma with pseudoexfoliation of lens, bilateral
- H40.1430Capsular glaucoma with pseudoexfoliation of lens, bilateral, stage unspecified
- H40.1431Capsular glaucoma with pseudoexfoliation of lens, bilateral, mild stage
- H40.1432Capsular glaucoma with pseudoexfoliation of lens, bilateral, moderate stage
- H40.1433Capsular glaucoma with pseudoexfoliation of lens, bilateral, severe stage
- H40.1434Capsular glaucoma with pseudoexfoliation of lens, bilateral, indeterminate stage
- H40.149Capsular glaucoma with pseudoexfoliation of lens, unspecified eye
- H40.1490Capsular glaucoma with pseudoexfoliation of lens, unspecified eye, stage unspecified
- H40.1491Capsular glaucoma with pseudoexfoliation of lens, unspecified eye, mild stage
- H40.1492Capsular glaucoma with pseudoexfoliation of lens, unspecified eye, moderate stage
- H40.1493Capsular glaucoma with pseudoexfoliation of lens, unspecified eye, severe stage
- H40.1494Capsular glaucoma with pseudoexfoliation of lens, unspecified eye, indeterminate stage
- H40.15Residual stage of open-angle glaucoma
- H40.151Residual stage of open-angle glaucoma, right eye
- H40.152Residual stage of open-angle glaucoma, left eye
- H40.153Residual stage of open-angle glaucoma, bilateral
- H40.159Residual stage of open-angle glaucoma, unspecified eye
- H40.2Primary angle-closure glaucoma
- H40.20Unspecified primary angle-closure glaucoma
- H40.20X0Unspecified primary angle-closure glaucoma, stage unspecified
- H40.20X1Unspecified primary angle-closure glaucoma, mild stage
- H40.20X2Unspecified primary angle-closure glaucoma, moderate stage
- H40.20X3Unspecified primary angle-closure glaucoma, severe stage
- H40.20X4Unspecified primary angle-closure glaucoma, indeterminate stage
- H40.21Acute angle-closure glaucoma
- H40.211Acute angle-closure glaucoma, right eye
- H40.212Acute angle-closure glaucoma, left eye
- H40.213Acute angle-closure glaucoma, bilateral
- H40.219Acute angle-closure glaucoma, unspecified eye
- H40.22Chronic angle-closure glaucoma
- H40.221Chronic angle-closure glaucoma, right eye
- H40.2210Chronic angle-closure glaucoma, right eye, stage unspecified
- H40.2211Chronic angle-closure glaucoma, right eye, mild stage
- H40.2212Chronic angle-closure glaucoma, right eye, moderate stage
- H40.2213Chronic angle-closure glaucoma, right eye, severe stage
- H40.2214Chronic angle-closure glaucoma, right eye, indeterminate stage
- H40.222Chronic angle-closure glaucoma, left eye
- H40.2220Chronic angle-closure glaucoma, left eye, stage unspecified
- H40.2221Chronic angle-closure glaucoma, left eye, mild stage
- H40.2222Chronic angle-closure glaucoma, left eye, moderate stage
- H40.2223Chronic angle-closure glaucoma, left eye, severe stage
- H40.2224Chronic angle-closure glaucoma, left eye, indeterminate stage
- H40.223Chronic angle-closure glaucoma, bilateral
- H40.2230Chronic angle-closure glaucoma, bilateral, stage unspecified
- H40.2231Chronic angle-closure glaucoma, bilateral, mild stage
- H40.2232Chronic angle-closure glaucoma, bilateral, moderate stage
- H40.2233Chronic angle-closure glaucoma, bilateral, severe stage
- H40.2234Chronic angle-closure glaucoma, bilateral, indeterminate stage
- H40.229Chronic angle-closure glaucoma, unspecified eye
- H40.2290Chronic angle-closure glaucoma, unspecified eye, stage unspecified
- H40.2291Chronic angle-closure glaucoma, unspecified eye, mild stage
- H40.2292Chronic angle-closure glaucoma, unspecified eye, moderate stage
- H40.2293Chronic angle-closure glaucoma, unspecified eye, severe stage
- H40.2294Chronic angle-closure glaucoma, unspecified eye, indeterminate stage
- H40.23Intermittent angle-closure glaucoma
- H40.231Intermittent angle-closure glaucoma, right eye
- H40.232Intermittent angle-closure glaucoma, left eye
- H40.233Intermittent angle-closure glaucoma, bilateral
- H40.239Intermittent angle-closure glaucoma, unspecified eye
- H40.24Residual stage of angle-closure glaucoma
- H40.241Residual stage of angle-closure glaucoma, right eye
- H40.242Residual stage of angle-closure glaucoma, left eye
- H40.243Residual stage of angle-closure glaucoma, bilateral
- H40.249Residual stage of angle-closure glaucoma, unspecified eye
- H40.3Glaucoma secondary to eye trauma
- H40.30Glaucoma secondary to eye trauma, unspecified eye
- H40.30X0Glaucoma secondary to eye trauma, unspecified eye, stage unspecified
- H40.30X1Glaucoma secondary to eye trauma, unspecified eye, mild stage
- H40.30X2Glaucoma secondary to eye trauma, unspecified eye, moderate stage
- H40.30X3Glaucoma secondary to eye trauma, unspecified eye, severe stage
- H40.30X4Glaucoma secondary to eye trauma, unspecified eye, indeterminate stage
- H40.31Glaucoma secondary to eye trauma, right eye
- H40.31X0Glaucoma secondary to eye trauma, right eye, stage unspecified
- H40.31X1Glaucoma secondary to eye trauma, right eye, mild stage
- H40.31X2Glaucoma secondary to eye trauma, right eye, moderate stage
- H40.31X3Glaucoma secondary to eye trauma, right eye, severe stage
- H40.31X4Glaucoma secondary to eye trauma, right eye, indeterminate stage
- H40.32Glaucoma secondary to eye trauma, left eye
- H40.32X0Glaucoma secondary to eye trauma, left eye, stage unspecified
- H40.32X1Glaucoma secondary to eye trauma, left eye, mild stage
- H40.32X2Glaucoma secondary to eye trauma, left eye, moderate stage
- H40.32X3Glaucoma secondary to eye trauma, left eye, severe stage
- H40.32X4Glaucoma secondary to eye trauma, left eye, indeterminate stage
- H40.33Glaucoma secondary to eye trauma, bilateral
- H40.33X0Glaucoma secondary to eye trauma, bilateral, stage unspecified
- H40.33X1Glaucoma secondary to eye trauma, bilateral, mild stage
- H40.33X2Glaucoma secondary to eye trauma, bilateral, moderate stage
- H40.33X3Glaucoma secondary to eye trauma, bilateral, severe stage
- H40.33X4Glaucoma secondary to eye trauma, bilateral, indeterminate stage
- H40.4Glaucoma secondary to eye inflammation
- H40.40Glaucoma secondary to eye inflammation, unspecified eye
- H40.40X0Glaucoma secondary to eye inflammation, unspecified eye, stage unspecified
- H40.40X1Glaucoma secondary to eye inflammation, unspecified eye, mild stage
- H40.40X2Glaucoma secondary to eye inflammation, unspecified eye, moderate stage
- H40.40X3Glaucoma secondary to eye inflammation, unspecified eye, severe stage
- H40.40X4Glaucoma secondary to eye inflammation, unspecified eye, indeterminate stage
- H40.41Glaucoma secondary to eye inflammation, right eye
- H40.41X0Glaucoma secondary to eye inflammation, right eye, stage unspecified
- H40.41X1Glaucoma secondary to eye inflammation, right eye, mild stage
- H40.41X2Glaucoma secondary to eye inflammation, right eye, moderate stage
- H40.41X3Glaucoma secondary to eye inflammation, right eye, severe stage
- H40.41X4Glaucoma secondary to eye inflammation, right eye, indeterminate stage
- H40.42Glaucoma secondary to eye inflammation, left eye
- H40.42X0Glaucoma secondary to eye inflammation, left eye, stage unspecified
- H40.42X1Glaucoma secondary to eye inflammation, left eye, mild stage
- H40.42X2Glaucoma secondary to eye inflammation, left eye, moderate stage
- H40.42X3Glaucoma secondary to eye inflammation, left eye, severe stage
- H40.42X4Glaucoma secondary to eye inflammation, left eye, indeterminate stage
- H40.43Glaucoma secondary to eye inflammation, bilateral
- H40.43X0Glaucoma secondary to eye inflammation, bilateral, stage unspecified
- H40.43X1Glaucoma secondary to eye inflammation, bilateral, mild stage
- H40.43X2Glaucoma secondary to eye inflammation, bilateral, moderate stage
- H40.43X3Glaucoma secondary to eye inflammation, bilateral, severe stage
- H40.43X4Glaucoma secondary to eye inflammation, bilateral, indeterminate stage
- H40.5Glaucoma secondary to other eye disorders
- H40.50Glaucoma secondary to other eye disorders, unspecified eye
- H40.50X0Glaucoma secondary to other eye disorders, unspecified eye, stage unspecified
- H40.50X1Glaucoma secondary to other eye disorders, unspecified eye, mild stage
- H40.50X2Glaucoma secondary to other eye disorders, unspecified eye, moderate stage
- H40.50X3Glaucoma secondary to other eye disorders, unspecified eye, severe stage
- H40.50X4Glaucoma secondary to other eye disorders, unspecified eye, indeterminate stage
- H40.51Glaucoma secondary to other eye disorders, right eye
- H40.51X0Glaucoma secondary to other eye disorders, right eye, stage unspecified
- H40.51X1Glaucoma secondary to other eye disorders, right eye, mild stage
- H40.51X2Glaucoma secondary to other eye disorders, right eye, moderate stage
- H40.51X3Glaucoma secondary to other eye disorders, right eye, severe stage
- H40.51X4Glaucoma secondary to other eye disorders, right eye, indeterminate stage
- H40.52Glaucoma secondary to other eye disorders, left eye
- H40.52X0Glaucoma secondary to other eye disorders, left eye, stage unspecified
- H40.52X1Glaucoma secondary to other eye disorders, left eye, mild stage
- H40.52X2Glaucoma secondary to other eye disorders, left eye, moderate stage
- H40.52X3Glaucoma secondary to other eye disorders, left eye, severe stage
- H40.52X4Glaucoma secondary to other eye disorders, left eye, indeterminate stage
- H40.53Glaucoma secondary to other eye disorders, bilateral
- H40.53X0Glaucoma secondary to other eye disorders, bilateral, stage unspecified
- H40.53X1Glaucoma secondary to other eye disorders, bilateral, mild stage
- H40.53X2Glaucoma secondary to other eye disorders, bilateral, moderate stage
- H40.53X3Glaucoma secondary to other eye disorders, bilateral, severe stage
- H40.53X4Glaucoma secondary to other eye disorders, bilateral, indeterminate stage
- H40.6Glaucoma secondary to drugs
- H40.60Glaucoma secondary to drugs, unspecified eye
- H40.60X0Glaucoma secondary to drugs, unspecified eye, stage unspecified
- H40.60X1Glaucoma secondary to drugs, unspecified eye, mild stage
- H40.60X2Glaucoma secondary to drugs, unspecified eye, moderate stage
- H40.60X3Glaucoma secondary to drugs, unspecified eye, severe stage
- H40.60X4Glaucoma secondary to drugs, unspecified eye, indeterminate stage
- H40.61Glaucoma secondary to drugs, right eye
- H40.61X0Glaucoma secondary to drugs, right eye, stage unspecified
- H40.61X1Glaucoma secondary to drugs, right eye, mild stage
- H40.61X2Glaucoma secondary to drugs, right eye, moderate stage
- H40.61X3Glaucoma secondary to drugs, right eye, severe stage
- H40.61X4Glaucoma secondary to drugs, right eye, indeterminate stage
- H40.62Glaucoma secondary to drugs, left eye
- H40.62X0Glaucoma secondary to drugs, left eye, stage unspecified
- H40.62X1Glaucoma secondary to drugs, left eye, mild stage
- H40.62X2Glaucoma secondary to drugs, left eye, moderate stage
- H40.62X3Glaucoma secondary to drugs, left eye, severe stage
- H40.62X4Glaucoma secondary to drugs, left eye, indeterminate stage
- H40.63Glaucoma secondary to drugs, bilateral
- H40.63X0Glaucoma secondary to drugs, bilateral, stage unspecified
- H40.63X1Glaucoma secondary to drugs, bilateral, mild stage
- H40.63X2Glaucoma secondary to drugs, bilateral, moderate stage
- H40.63X3Glaucoma secondary to drugs, bilateral, severe stage
- H40.63X4Glaucoma secondary to drugs, bilateral, indeterminate stage
- H40.8Other glaucoma
- H40.81Glaucoma with increased episcleral venous pressure
- H40.811Glaucoma with increased episcleral venous pressure, right eye
- H40.812Glaucoma with increased episcleral venous pressure, left eye
- H40.813Glaucoma with increased episcleral venous pressure, bilateral
- H40.819Glaucoma with increased episcleral venous pressure, unspecified eye
- H40.82Hypersecretion glaucoma
- H40.821Hypersecretion glaucoma, right eye
- H40.822Hypersecretion glaucoma, left eye
- H40.823Hypersecretion glaucoma, bilateral
- H40.829Hypersecretion glaucoma, unspecified eye
- H40.83Aqueous misdirection
- H40.831Aqueous misdirection, right eye
- H40.832Aqueous misdirection, left eye
- H40.833Aqueous misdirection, bilateral
- H40.839Aqueous misdirection, unspecified eye
- H40.84Neovascular secondary angle closure glaucoma
- H40.841Neovascular secondary angle closure glaucoma, right eye
- H40.842Neovascular secondary angle closure glaucoma, left eye
- H40.843Neovascular secondary angle closure glaucoma, bilateral
- H40.849Neovascular secondary angle closure glaucoma, unspecified eye
- H40.89Other specified glaucoma
- H40.9Unspecified glaucoma
H40 MS-DRGs
As the principal diagnosis, the billable codes under H40 group to MS-DRG 124, 125, or 123 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (232 of 252 codes)
- DRG 125 Other Disorders of the Eye without MCC (232 of 252 codes)
- DRG 123 Neurological Eye Disorders (20 of 252 codes)
Other codes that refer to H40
Notes on these codes point to H40.
- E08.39 Use Additional Code: diabetic glaucoma (H40-H42)
- E09.39 Use Additional Code: diabetic glaucoma (H40-H42)
- E10.39 Use Additional Code: diabetic glaucoma (H40-H42)
- E11.39 Use Additional Code: diabetic glaucoma (H40-H42)
- E13.39 Use Additional Code: diabetic glaucoma (H40-H42)
- H26.23 Code First: underlying glaucoma (H40-H42)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Glaucoma
Glaucoma is a group of diseases that can damage the optic nerve of one, or both, of your eyes. This can result in vision loss. There are different types of glaucoma, but the most common type is open-angle glaucoma. Other less common types include angle-closure glaucoma, and congenital glaucoma.
Read more about glaucoma on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.