Other infection carrier state complicating pregnancy

This code signifies a pregnant patient who is an asymptomatic carrier of an infectious agent, where the carrier state itself is complicating the pregnancy. This means the patient harbors a pathogen without exhibiting active disease symptoms, but its presence poses a risk or requires management during gestation.

Apply this code when documentation clearly indicates a pregnant patient is a known carrier of an infection (e.g., Hepatitis B, HIV, Group B Streptococcus) and this carrier status is specifically noted as complicating the pregnancy. This is often used in conjunction with codes for the specific infectious disease.

• Always sequence this code after the primary obstetric code (e.g., O09.-, O10.-, O11.-, O12.-, O13.-, O14.-, O15.-, O16.-, O20.-, O21.-, O22.-, O23.-, O24.-, O25.-, O26.-, O28.-, O29.-, O30.-, O31.-, O32.-, O33.-, O34.-, O35.-, O36.-, O40.-, O41.-, O42.-, O43.-, O44.-, O45.-, O46.-, O47.-, O48.-).
• A secondary code identifying the specific infectious agent (e.g., B18.1 for chronic viral hepatitis B, B20 for HIV disease) must always be reported in addition to this code.
• Do not use this code if the patient has an active infection with symptoms; instead, use the appropriate code for the active infection complicating pregnancy (e.g., O98.-).