2021 ICD-10-CM Code O34.21

Maternal care for scar from previous cesarean delivery

Version 2021
Replaced Code
Non-Billable Code

Not Valid for Submission

O34.21 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of maternal care for scar from previous cesarean delivery. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:O34.21
Short Description:Maternal care for scar from previous cesarean delivery
Long Description:Maternal care for scar from previous cesarean delivery

Code Classification

Specific Coding for Maternal care for scar from previous cesarean delivery

Header codes like O34.21 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for maternal care for scar from previous cesarean delivery:

  • O34.211 - Maternal care for low transverse scar from previous cesarean delivery
  • O34.212 - Maternal care for vertical scar from previous cesarean delivery
  • O34.218 - Maternal care for other type scar from previous cesarean delivery
  • O34.219 - Maternal care for unspecified type scar from previous cesarean delivery

Replaced Code

This code was replaced in the 2021 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).


  • O34.211 - Matern care for low transverse scar from prev cesarean del
  • O34.211 - Matern care for low transverse scar from prev cesarean del
  • O34.212 - Maternal care for vertical scar from previous cesarean del
  • O34.212 - Maternal care for vertical scar from previous cesarean del
  • O34.219 - Maternal care for unsp type scar from previous cesarean del
  • O34.219 - Maternal care for unsp type scar from previous cesarean del

Information for Patients


Health Problems in Pregnancy

Every pregnancy has some risk of problems. You may have problems because of a health condition you had before you got pregnant. You could also develop a condition during pregnancy. Other causes of problems during pregnancy can include being pregnant with more than one baby, a health problem in a previous pregnancy, substance abuse during pregnancy, or being over age 35. Any of these can affect your health, the health of your baby, or both.

If you have a chronic condition, you should talk to your health care provider about how to minimize your risk before you get pregnant. Once you are pregnant, you may need a health care team to monitor your pregnancy. Some common conditions that can complicate a pregnancy include

Other conditions that can make pregnancy risky can happen while you are pregnant - for example, gestational diabetes and Rh incompatibility. Good prenatal care can help detect and treat them.

Some discomforts, like nausea, back pain, and fatigue, are common during pregnancy. Sometimes it is hard to know what is normal. Call your health care provider if something is bothering or worrying you.


[Learn More]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)