Air embolism in pregnancy, third trimester

This code signifies the presence of an air embolism occurring during the third trimester of a pregnancy. An air embolism involves the entry of air bubbles into the bloodstream, which can obstruct blood flow and lead to serious complications for both the mother and fetus.

Apply this code when documentation clearly indicates a diagnosis of air embolism in a pregnant patient who is specifically in her third trimester. Supporting documentation should include physician notes detailing the diagnosis and the gestational stage.

• Ensure the documentation explicitly states "third trimester" to use this specific code; otherwise, a less specific code for air embolism in pregnancy may be necessary.
• Consider sequencing this code as a principal diagnosis if it is the primary reason for the encounter, or as a secondary diagnosis if it's a co-morbidity.
• Review for any associated complications or causes of the air embolism, such as procedures or trauma, which may require additional coding.