O66 Other obstructed laborNon-billable header with 9 child codes.
O66.0 Obstructed labor due to shoulder dystociaO66.1 Obstructed labor due to locked twinsO66.2 Obstructed labor due to unusually large fetusO66.3 Obstructed labor due to other abnormalities of fetusO66.4 Failed trial of laborO66.5 Attempted application of vacuum extractor and forcepsO66.6 Obstructed labor due to other multiple fetusesO66.8 Other specified obstructed laborO66.9 Obstructed labor, unspecifiedO33 Maternal care for disproportion ("disproportion with obstructed labor (O65-O66)")O33 Maternal care for disproportion ("disproportion with obstructed labor (O65-O66)")