O33 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Maternal care for disproportion.
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The listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
Disproportion with obstructed labor (O65-O66)
Maternal care for disproportion due to deformity of maternal pelvic bones
Maternal care for disproportion due to generally contracted pelvis
Maternal care for disproportion due to inlet contraction of pelvis
Maternal care for disproportion due to outlet contraction of pelvis
Maternal care for disproportion of mixed maternal and fetal origin
Maternal care for disproportion due to unusually large fetus
Maternal care for disproportion due to hydrocephalic fetus
Maternal care for disproportion due to other fetal deformities
Maternal care for disproportion of other origin
Maternal care for disproportion, unspecified
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