Obesity In Pregnancy ICD-10-CM Codes

Read this short guide and learn about obesity in pregnancy ICD codes you can use!

By Patricia Buenaventura on Aug 8, 2025.

What obesity in pregnancy ICD codes can I use?

If you’re handling a pregnant patient and looking for obesity in pregnancy ICD codes, there are only a few that you can select from. Here are four examples that can be used for a pregnant patient who happens to be obese and whose pregnancy is impacted by their obesity.

O99.210 - Obesity complicating pregnancy, unspecified trimester

This ICD-10 code is meant to be used on a pregnant patient who is confirmed to be obese and their obesity is confirmed to be complicating their pregnancy. What is not known is what trimester the patient is in.

O99.211 - Obesity complicating pregnancy, first trimester

This is the same as Item 1, but this time, it’s confirmed that the patient’s pregnancy complications due to their obesity are occurring in the first trimester.

O99.212 - Obesity complicating pregnancy, second trimester

This is the same as Item 1, but this time, it’s confirmed that the patient’s pregnancy complications due to their obesity are occurring in the second trimester.

O99.213 - Obesity complicating pregnancy, third trimester

This is the same as Item 1, but this time, it’s confirmed that the patient’s pregnancy complications due to their obesity are occurring in the third trimester.

These four ICD-10 codes are the only ones that are meant for cases where obesity complicates a pregnancy. These are only for female patients, too.

Are these obesity in pregnancy ICD codes billable?

Yes. All four of these ICD-10 codes are valid and billable.

Clinical information about obesity in pregnancy

Obesity can affect a person’s pregnancy. It can affect the patient and the unborn child. Being obese can inhibit regular ovulation and heighten the risk of unsuccessful in vitro fertilization.

Here are some examples of complications that a patient can have if they’re pregnant and obese:

They can develop heart problems, sleep apnea, and/or gestational diabetes
They can develop the high blood pressure disorder known as Preeclampsia. A patient with Preeclampsia will have high protein in their urine, impair the liver and kidneys, cause fluid build-up in the lungs, and stress out the heart
The pregnancy can result in a miscarriage or a stillbirth. This will also make it more likely that they will have another miscarriage later on

If an obese pregnant female patient successfully gives birth, their obesity might affect the child in the following ways:

They might develop asthma
They might become obese early in their childhood
They might grow up with congenital disorders
They might have growth problems
They might grow up with cognitive problems

Synonyms include

Fetal disorder due to maternal obesity
Fetal disorder due to maternal obesity with adult body mass index 30 or greater but less than 40
Fetal disorder due to maternal obesity with adult body mass index equal to or greater than 40
Maternal obesity complicating pregnancy, childbirth and the puerperium, antepartum
Fetal disorder due to maternal overweight
Severe obesity complicating pregnancy

Commonly asked questions

Yes. There are other ICD-10 codes that can be used to explain a patient’s obesity, but they’re not exactly specific to obesity in pregnancy.

They will closely monitor the unborn child and may conduct tests to screen for gestational diabetes and sleep apnea, and they will also make adjustments to fetal ultrasounds to work around the obesity.

Make dietary changes that promote the avoidance of excessive weight gain, be physically active despite being pregnant (so long as they are safe to do), and avoid smoking and consuming other substances like alcohol and drugs.

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