ICD-10-CM > Z00-Z99 > Z20-Z29 > Z22 > Z22.3 > Z22.33 > Z22.330 Z22.330 Carrier of Group B streptococcus Billable/Specific Copy Code Copy Description Type 1 Excludes Carrier of streptococcus group B (GBS) complicating pregnancy, childbirth and the puerperium (O99.82-)