• ICD-10 Diagnosis Code for Neovascular Glaucoma

    Question: Which is the most appropriate code for neovascular glaucoma? I am unsure if it should be: H40.5- Glaucoma secondary to other eye disorders or H40.89 Other specified glaucoma.

    Answer: According to Gordon Johns, MD, author of ICD-10-CM for Ophthalmology, either code is appropriate. If you look at 365.63 Glaucoma associated with vascular disorder in the GEM cross walk it takes you to H40.89. This would be the biggest argument that the H40.89 would be the best code to use. However H40.5- is more specific. Indeed it is a closer match in that the glaucoma is secondary to other things going on in the eye.