Convert ICD-10 Code H40.20X3 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
H40.20X3 Unspecified primary angle-closure glaucoma, severe stage		365.20 Prim angl-clos glauc NOS
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.
H40.20X3 Unspecified primary angle-closure glaucoma, severe stage		365.20 Prim angl-clos glauc NOS
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
H40.20X3 Unspecified primary angle-closure glaucoma, severe stage		365.73 Severe 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 H40.20X3 - unspecified primary angle-closure glaucoma, severe stage based on the most recent General Equivalence Mappings (GEMS) information.