Version 2024

2024 ICD-10-CM Diagnosis Code O33.5

Maternal care for disproportion due to unusually large fetus

ICD-10-CM Code:
O33.5
ICD-10 Code for:
Maternal care for disproportion due to unusually large fetus
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Pregnancy, childbirth and the puerperium
    (O00-O9A)
    • Maternal care related to the fetus and amniotic cavity and possible delivery problems
      (O30-O48)
      • Maternal care for disproportion
        (O33)

O33.5 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of maternal care for disproportion due to unusually large fetus. The code is not specific and is NOT valid for the year 2024 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.

Specific Coding Applicable to Maternal care for disproportion due to unusually large fetus

Non-specific codes like O33.5 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for maternal care for disproportion due to unusually large fetus:

  • Use O33.5XX0 for not applicable or unspecified - BILLABLE CODE

  • Use O33.5XX1 for fetus 1 - BILLABLE CODE

  • Use O33.5XX2 for fetus 2 - BILLABLE CODE

  • Use O33.5XX3 for fetus 3 - BILLABLE CODE

  • Use O33.5XX4 for fetus 4 - BILLABLE CODE

  • Use O33.5XX5 for fetus 5 - BILLABLE CODE

  • Use O33.5XX9 for other fetus - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Maternal care for disproportion due to disproportion of fetal origin with normally formed fetus
  • Maternal care for disproportion due to fetal disproportion NOS

7th Character Note

7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • 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

7th Character

7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
  • 0 - not applicable or unspecified
  • 1 - fetus 1
  • 2 - fetus 2
  • 3 - fetus 3
  • 4 - fetus 4
  • 5 - fetus 5
  • 9 - other fetus

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Patient Education


Childbirth Problems

Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:

  • Preterm (premature) labor, when your labor starts before 37 completed weeks of pregnancy
  • Premature rupture of membranes (PROM), when your water breaks too early. If labor does not start soon afterwards, this can raise the risk of infection.
  • Problems with the placenta, such as the placenta covering the cervix, separating from the uterus before birth, or being attached too firmly to the uterus
  • Labor that does not progress, meaning that labor is stalled. This can happen when
    • Your contractions weaken
    • Your cervix does not dilate (open) enough or is taking too long to dilate
    • The baby is not in the right position
    • The baby is too big or your pelvis is too small for the baby to move through the birth canal
  • Abnormal heart rate of the baby. Often, an abnormal heart rate is not a problem. But if the heart rate gets very fast or very slow, it can be a sign that your baby is not getting enough oxygen or that there are other problems.
  • Problems with the umbilical cord, such as the cord getting caught on the baby's arm, leg, or neck. It's also a problem if cord comes out before the baby does.
  • Problems with the position of the baby, such as breech, in which the baby is going to come out feet first
  • Shoulder dystocia, when the baby's head comes out, but the shoulder gets stuck
  • Perinatal asphyxia, which happens when the baby does not get enough oxygen in the uterus, during labor or delivery, or just after birth
  • Perineal tears, tearing of your vagina and the surrounding tissues
  • Excessive bleeding, which can happen when the delivery causes tears to the uterus or if you are not able to deliver the placenta after you give birth to the baby
  • Post-term pregnancy, when your pregnancy lasts more than 42 weeks

If you have problems in childbirth, your health care provider may need to give you medicines to induce or speed up labor, use tools to help guide the baby out of the birth canal, or deliver the baby by Cesarean section.

NIH: National Institute of Child Health and Human Development


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.