Is H40.1 a billable code?
No. H40.1 is a header code that groups 84 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
H40.1: Open-angle glaucoma
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
H40.1 groups related diagnoses under open-angle glaucoma. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under H40.1
- 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
- H40.1120Primary 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
- H40.1130Primary 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
- H40.1190Primary 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
- H40.1210Low-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
- H40.1220Low-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
- H40.1230Low-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
- H40.1290Low-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
- H40.1310Pigmentary 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
- H40.1320Pigmentary 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
- H40.1330Pigmentary 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
- H40.1390Pigmentary 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
- H40.1410Capsular 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
- H40.1420Capsular 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
- H40.1430Capsular 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
- H40.1490Capsular 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
- H40.151Residual 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
Other codes in H40 Glaucoma
- H40.0Glaucoma suspectheader
- H40.2Primary angle-closure glaucomaheader
- H40.3Glaucoma secondary to eye traumaheader
- H40.4Glaucoma secondary to eye inflammationheader
- H40.5Glaucoma secondary to other eye disordersheader
- H40.6Glaucoma secondary to drugsheader
- H40.8Other glaucomaheader
- H40.9Unspecified glaucoma
H40.1 questions
What does H40.1 mean?
H40.1 is the ICD-10-CM code for Open-angle glaucoma. It is in chapter 7, Diseases of the eye and adnexa (H00-H59).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.