Obstructed labor due to malpos and malpresent, unsp, fetus 4

This code signifies a complication during labor where the fetus is positioned or presented abnormally, leading to an obstruction that prevents normal vaginal delivery. The specific type of malposition or malpresentation is not documented, and this code is assigned when it affects the fourth fetus in a multiple gestation pregnancy.

Assign this code when documentation indicates obstructed labor due to an unspecified fetal malposition or malpresentation in the fourth fetus. This typically occurs when the obstetrician notes difficulty with labor progression due to the fetal lie, presentation (e.g., transverse, oblique, brow, face), or position (e.g., posterior, asynclitic), but the precise nature of the anomaly is not specified.

• Ensure documentation explicitly states "fetus 4" to justify the 4th character.
• If the specific type of malposition or malpresentation is known, a more specific code (e.g., O64.0-O64.8) should be used.
• Always sequence this code as a principal diagnosis when it is the reason for admission or the primary condition treated.