O33.7
ICD-10Non-billable categoryMaternal care for disproportion due to oth fetal deformities
Official ICD-10-CM descriptor (FY2026)
Maternal care for disproportion due to other fetal deformities
O33.7 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- 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
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- obstructed labor due to other fetal deformities (O66.3)
7th character
- 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.
Permitted 7th characters
| 0 | not applicable or unspecified |
| 1 | fetus 1 |
| 2 | fetus 2 |
| 3 | fetus 3 |
| 4 | fetus 4 |
| 5 | fetus 5 |
| 9 | other fetus |
Related codes in O33
- O33.0Matern care for disproprtn d/t deformity of matern pelv bone
- O33.1Matern care for disproprtn d/t generally contracted pelvis
- O33.2Maternal care for disproprtn due to inlet contrctn of pelvis
- O33.3Matern care for disproprtn due to outlet contrctn of pelviscategory
- O33.4Matern care for disproprtn of mixed matern and fetal origincategory
- O33.5Maternal care for disproportion due to unusually large fetuscategory
- O33.6Maternal care for disproportion due to hydrocephalic fetuscategory
- O33.8Maternal care for disproportion of other origin
- O33.9Maternal care for disproportion, unspecified
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.