Convert ICD-10-CM O99.820 to ICD-9-CM

O99.820 can be converted to ICD-9-CM using the following scenario:
Scenario 1
  • 2015 ICD-9-CM 648.93 Other current conditions classifiable elsewhere of mother, antepartum condition or complication
  • With:
  • 2015 ICD-9-CM V02.51 Carrier or suspected carrier of group B streptococcus

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.