O99.82 vs Z22.330
O99.82 (Streptococcus B carrier state complicating pregnancy, childbirth and the puerperium) compared with Z22.330 (Carrier of Group B streptococcus), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. O99.82 carries an Excludes1 note covering Z22.330: “Carrier of streptococcus group B (GBS) in a nonpregnant woman (Z22.330)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. Z22.330 carries an Excludes1 note covering O99.82: “Carrier of streptococcus group B (GBS) complicating pregnancy, childbirth and the puerperium (O99.82-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| O99.82Streptococcus B carrier state complicating pregnancy, childbirth and the puerperium | Z22.330Carrier of Group B streptococcus | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Streptococcus B carrier state complicating pregnancy, childbirth and the puerperium is a non-billable ICD-10-CM category code (O99.82). | Carrier of Group B streptococcus is a billable ICD-10-CM diagnosis code (Z22.330). |
| Includes | conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care | colonization status suspected carrier |
| Use additional code | code to identify condition code to identify specific condition | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources