What ICD-10 codes can be used for pregnancy?
There are several ICD-10 codes that you can use for pregnancy-related medical cases. Here are some of them:
- Z33.1
- This ICD-10 code stands for Pregnant state, incidental. This ICD-10 code is meant to be used only for females and cannot be used for non-female patients. This code is not considered to be acceptable as a principal diagnosis. This is because the ICD-10 code is only meant to be used after a principal code has been used as this code identifies that the patient happens to be pregnant, hence incidental.
- Z33.3
- This ICD-10 code stands for Pregnant state, gestational carrier. This ICD-10 code is similar to the previous one. It’s only meant for female patients, and it is only to be used to identify that a patient happens to be pregnant, and this person is the one carrying the pregnancy. They are the surrogate/carrier, not the parent. The intended parents are the mother and father who will raise the child.
- O00.209
- This ICD-10 code stands for Unspecified ovarian pregnancy without intrauterine pregnancy. This is meant to be used only for female patients confirmed to have an ovarian pregnancy, which is rare. This entails that the patient’s ovum was fertilized and implanted within the ovary.
- The unspecified means it isn’t known yet which ovary the pregnancy is located.
- Without intrauterine pregnancy means that the pregnancy is not located in the uterus, which is where the pregnancy should be. Pregnancies that occur anywhere else, like the ovaries, are considered ectopic pregnancies, which aren’t normal. These will not result in the birth of the child, and it can be life-threatening due to bleeding.
- O00.109
- This ICD-10 code stands for Unspecified tubal pregnancy without intrauterine pregnancy. It’s the same as O00.209, only this time, the pregnancy is in the fallopian tube. This is considered an ectopic pregnancy, which, again, doesn’t result in the birth of the child and can be life-threatening.
- O00.00
- This ICD-10 code stands for Abdominal pregnancy without intrauterine pregnancy. As with O00.209 and O00.109, this is an ectopic pregnancy.

