Convert ICD-10 Code H40.1191 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
H40.1191 Primary open-angle glaucoma, unspecified eye, mild stage		365.11 Prim open angle glaucoma
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
H40.1191 Primary open-angle glaucoma, unspecified eye, mild stage		365.71 Mild stage glaucoma
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.

ICD-10 to ICD-9 crosswalk for code H40.1191 - primary open-angle glaucoma, unspecified eye, mild stage based on the most recent General Equivalence Mappings (GEMS) information.