Inj/poisn/oth conseq of extrn causes comp preg, second tri

This code signifies a maternal condition where an injury, poisoning, or other adverse effect from an external cause (e.g., trauma, drug overdose, environmental exposure) complicates a pregnancy that is currently in the second trimester. It indicates that the external cause is impacting the pregnancy itself, requiring clinical attention.

Apply this code when a pregnant patient in her second trimester presents with a condition directly resulting from an external cause, and this condition is documented as complicating the pregnancy. Examples include a pregnant patient sustaining a fracture from a fall, experiencing carbon monoxide poisoning, or having an adverse reaction to a medication during the second trimester, where these events are noted to affect the pregnancy.

• Always sequence this code after the primary code identifying the specific injury, poisoning, or external cause.
• Ensure documentation clearly states the external cause is "complicating" the pregnancy and specifies the second trimester.
• Do not use this code if the external cause occurred prior to pregnancy or if the complication is not directly related to the external cause.