Convert ICD-10 Code O12.20 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O12.20 Gestational edema with proteinuria, unspecified trimester		646.10 Edema in preg-unspec
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
O12.20 Gestational edema with proteinuria, unspecified trimester		646.20 Renal dis preg NOS-unsp
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 O12.20 - gestational edema with proteinuria, unspecified trimester based on the most recent General Equivalence Mappings (GEMS) information.