Inj/poisn/oth conseq of external causes comp preg, first tri

This code signifies a maternal injury, poisoning, or other adverse consequence of an external cause that occurs during the first trimester of pregnancy. It indicates that the external factor is complicating the pregnancy, rather than being an incidental finding. This includes conditions such as fractures, burns, adverse effects of drugs, or toxic effects of substances.

Assign this code when documentation clearly links an external cause (e.g., fall, motor vehicle accident, drug overdose) to a maternal injury or poisoning that is impacting the pregnancy. This code is appropriate when the patient is in her first trimester and the external event is explicitly stated as a complication. Supporting documentation should detail the nature of the injury/poisoning and its relationship to the pregnancy.

• Always sequence this code after the primary code identifying the specific injury or poisoning.
• Requires an additional code from Chapter 20 (External Causes of Morbidity) to fully describe the circumstances of the injury or poisoning.
• Ensure the documentation specifies "first trimester" to justify the use of this specific trimester-specific code.