Drug use complicating pregnancy, third trimester

This code signifies the presence of drug use, including illicit substances or misuse of prescription medications, that is adversely affecting a pregnancy during the third trimester. It indicates a maternal health issue directly related to substance use during the final stage of gestation.

Apply this code when documentation explicitly states drug use complicating a pregnancy that is currently in the third trimester (typically starting at 28 weeks gestation). This includes conditions such as opioid use disorder, stimulant use, or polysubstance use impacting the mother or fetus during this specific period.

• Always sequence this code as a secondary diagnosis, following the primary obstetric complication or condition.
• Ensure documentation specifies "third trimester" for accurate code assignment; otherwise, consider codes for other trimesters.
• Do not use this code if the drug use is resolved or not actively complicating the current pregnancy.