Syphilis complicating pregnancy, first trimester

This code signifies a diagnosis of syphilis occurring during the first trimester of a pregnancy. It indicates that the syphilitic infection is considered a complication of the current pregnancy, potentially impacting both maternal and fetal health.

Apply this code when a pregnant patient in her first trimester is diagnosed with syphilis. Documentation should clearly state the presence of syphilis and confirm the gestational age or trimester. This code is appropriate for both new diagnoses and active syphilis infections identified early in pregnancy.

• Always sequence this code as a primary diagnosis when the syphilis is the focus of the encounter, or as a secondary diagnosis when another condition is primary but syphilis is a significant co-morbidity.
• Ensure the medical record explicitly states "first trimester" or provides gestational weeks that fall within the first trimester (weeks 0-13).
• Do not confuse this with codes for syphilis in non-pregnant individuals or syphilis complicating pregnancy in other trimesters.