Code
Hierarchy
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O00-O9A Pregnancy, childbirth and the puerperium (O00-O9A)
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O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
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O33 Maternal care for disproportion
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O33.0 Maternal care for disproportion due to deformity of maternal pelvic bones
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O33.1 Maternal care for disproportion due to generally contracted pelvis
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O33.2 Maternal care for disproportion due to inlet contraction of pelvis
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O33.3 Maternal care for disproportion due to outlet contraction of pelvis
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O33.4 Maternal care for disproportion of mixed maternal and fetal origin
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O33.5 Maternal care for disproportion due to unusually large fetus
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O33.6 Maternal care for disproportion due to hydrocephalic fetus
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O33.7 Maternal care for disproportion due to other fetal deformities
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O33.8 Maternal care for disproportion of other origin
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O33.9 Maternal care for disproportion, unspecified
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Notes
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CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
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Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
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Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
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1st trimester- less than 14 weeks 0 days
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2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
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3rd trimester- 28 weeks 0 days until delivery
Inclusion Terms
O33.1
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Maternal care for disproportion due to contracted pelvis NOS causing disproportion
Use Additional
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code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Includes
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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