Bilateral Chronic Primary Angle-Closure Glaucoma, Mild Stage Test your skills with a new coding question from Clinical Coding Workout every Monday. Which is the correct ICD-10-CM code(s) for bilateral chronic primary angle-closure glaucoma, mild stage? H40.2131 H40.2211, H40.2221 H40.2231 H40.2291Source: AHIMA Press. Clinical Coding Workout, 2019. https://my.ahima.org/store/product?id=65592. Leave a comment