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

O12.20 can be converted to ICD-9-CM using the following scenario:

Scenario 1

2015 ICD-9-CM 646.10 Edema or excessive weight gain in pregnancy, without mention of hypertension, unspecified as to episode of care or not applicable

With:

2015 ICD-9-CM 646.20 Unspecified renal disease in pregnancy,without mention of hypertension, unspecified as to episode of care or not applicable

Note: approximate conversions between ICD-9-CM codes and ICD-10-CM codes may require clinical interpretation in order to determine the most appropriate conversion code(s) for your specific coding situation.

Source: 2022 ICD-10-CM CMS General Equivalence Mappings.