2021 ICD-10-CM Code O33.0

Maternal care for disproportion due to deformity of maternal pelvic bones

  1. ICD-10-CM Index
  2. Chapter: O00–O99
  3. Section: O30-O48
  4. Block: O33
  5. O33.0 - Matern care for disproprtn d/t deformity of matern pelv bone
Version 2021
Billable Code
Maternity Diagnoses
Diagnoses For Females Only
MS-DRG Mapping

Valid for Submission

O33.0 is a billable diagnosis code used to specify a medical diagnosis of maternal care for disproportion due to deformity of maternal pelvic bones. The code O33.0 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code O33.0 might also be used to specify conditions or terms like disproportion - major pelvic abnormality, disproportion - major pelvic abnormality - delivered, disproportion - major pelvic abnormality with antenatal problem, pelvis not adequate for delivery or problem of pelvis for delivery.

The code O33.0 is applicable to female patients aged 12 through 55 years inclusive. It is clinically and virtually impossible to use this code on a non-female patient outside the stated age range.

ICD-10:O33.0
Short Description:Matern care for disproprtn d/t deformity of matern pelv bone
Long Description:Maternal care for disproportion due to deformity of maternal pelvic bones

Code Classification

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code O33.0:


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.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code O33.0 are found in the index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert O33.0 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code O33.0 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Childbirth Problems

While childbirth usually goes well, complications can happen. They can cause a risk to the mother, baby, or both. Possible complications include

For some of these problems, the baby may need to be delivered surgically by a Cesarean section.


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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)

Previous Code: O33

Related Codes

Next Code: O33.1