A guide and tutorial for eye care providers in grading the severity of glaucoma for ICD-9 coding and billing.
10 patients are given as examples for grading.

For proper ICD-9 coding:
1. Code for the type of glaucoma diagnosis.
2. Code for the severity of the glaucoma using the Glaucoma Severity Scale definitions, based on the more severe stage of the two eyes.

Joshua D. Stein, MD, MS; Denise S. Kim, MD; Cindie Mattox, MD; Ronald Fellman, MD; Barbara Smit, MD; Adam Reynolds, MD
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