Prem separtn of placenta w oth coag defect, unsp trimester

This code signifies an abruptio placentae, where the placenta detaches from the uterine wall before the baby's birth, complicated by a coagulation defect other than disseminated intravascular coagulation (DIC). The specific trimester of pregnancy is not documented or is unknown. This condition can lead to significant maternal hemorrhage and fetal distress.

Use this code when documentation clearly indicates premature placental separation in conjunction with an identified coagulation disorder, such as von Willebrand disease, hemophilia, or other inherited or acquired clotting factor deficiencies, excluding DIC. This code is appropriate when the trimester is not specified in the medical record.

• Ensure the documentation explicitly states "other coagulation defect" and not DIC, which has a separate code.
• If the trimester is known, a more specific code from the O45.0- series should be used.
• Always sequence this code as a principal diagnosis when it is the primary reason for the encounter, followed by codes for the specific coagulation defect.