Unspecified placental disorder, third trimester

This code signifies a placental abnormality identified during the third trimester of pregnancy where the specific nature of the disorder is not documented. It indicates a general issue with the placenta's structure or function late in gestation, without further diagnostic clarity.

Use this code when the medical record explicitly states a placental disorder in the third trimester but lacks specific details regarding the type of disorder (e.g., "placental abnormality, third trimester, unspecified"). Documentation supporting its use would include physician notes indicating a placental issue without a definitive diagnosis like placenta previa or abruption.

• Avoid using this code if a more specific placental disorder (e.g., O43.1- for malformation, O43.2- for accreta) is documented.
• Always query the provider for further specificity if "unspecified placental disorder" is noted to allow for more precise coding.
• This code should be sequenced as a secondary diagnosis when the placental disorder is complicating the pregnancy.