ICD-10-CM Diagnosis Code (2025)
Official Description for O33
Maternal care for disproportion
Coding Notes & Guidelines for O33
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)
obstructed labor due to other fetal deformities (O66.3)
Maternal care for disproportion due to pelvic deformity causing disproportion NOS
Maternal care for disproportion due to contracted pelvis NOS causing disproportion
Maternal care for disproportion due to inlet contraction (pelvis) causing disproportion
- Maternal care for disproportion due to mid-cavity contraction (pelvis)
- Maternal care for disproportion due to outlet contraction (pelvis)
- Maternal care for disproportion due to disproportion of fetal origin with normally formed fetus
- Maternal care for disproportion due to fetal disproportion NOS
- Maternal care for disproportion due to fetal ascites
- Maternal care for disproportion due to fetal hydrops
- Maternal care for disproportion due to fetal meningomyelocele
- Maternal care for disproportion due to fetal sacral teratoma
- Maternal care for disproportion due to fetal tumor
- Maternal care for disproportion due to cephalopelvic disproportion NOS
- Maternal care for disproportion due to fetopelvic disproportion NOS
One of the following 7th characters is to be assigned to code O33.3. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.3 with a 7th character of 1 through 9.
One of the following 7th characters is to be assigned to code O33.4. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.4 with a 7th character of 1 through 9.
One of the following 7th characters is to be assigned to code O33.5. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.5 with a 7th character of 1 through 9.
One of the following 7th characters is to be assigned to code O33.6. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.6 with a 7th character of 1 through 9.
One of the following 7th characters is to be assigned to code O33.7. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.7 with a 7th character of 1 through 9.
Child Codes (More Specific Codes for O33):
About ICD-10-CM Code O33 (Maternal care for disproportion)
ICD-10-CM code O33 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM O33 became effective on October 1, 2024.
This page provides detailed information about O33 - Maternal care for disproportion. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Maternal care for disproportion.