Glaucoma secondary to other eye disorders

**Code also:** - underlying eye disorder

**7th character note:** - One of the following 7th characters is to be assigned to each code in subcategory H40.5 to designate the stage of glaucoma

**7th character:** - 0: stage unspecified - 1: mild stage - 2: moderate stage - 3: severe stage - 4: indeterminate stage