2020 ICD-10-CM Diagnosis Code O33

Maternal care for disproportion

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • O33 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM O33 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of O33 - other international versions of ICD-10 O33 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as O33. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • disproportion with obstructed labor (
    ICD-10-CM Diagnosis Code O65

    Obstructed labor due to maternal pelvic abnormality

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    ICD-10-CM Diagnosis Code O66

    Other obstructed labor

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
The following code(s) above O33 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to O33:
  • O00-O9A
    2020 ICD-10-CM Range O00-O9A

    Pregnancy, childbirth and the puerperium

    • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
    • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
    • 1st trimester- less than 14 weeks 0 days
    • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
    • 3rd trimester- 28 weeks 0 days until delivery
    Type 1 Excludes
    • supervision of normal pregnancy (Z34.-)
    Type 2 Excludes
    • mental and behavioral disorders associated with the puerperium (F53.-)
    • obstetrical tetanus (A34)
    • postpartum necrosis of pituitary gland (E23.0)
    • puerperal osteomalacia (M83.0)
    Use Additional
    • code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
    Pregnancy, childbirth and the puerperium
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to O33:
  • Type 1 Excludes: M95.5
    ICD-10-CM Diagnosis Code M95.5

    Acquired deformity of pelvis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 1 Excludes
    • maternal care for known or suspected disproportion (O33.-)
ICD-10-CM Codes Adjacent To O33
O32.8XX5 …… fetus 5
O32.8XX9 …… other fetus
O32.9 Maternal care for malpresentation of fetus, unspecified
O32.9XX0 …… not applicable or unspecified
O32.9XX1 …… fetus 1
O32.9XX2 …… fetus 2
O32.9XX3 …… fetus 3
O32.9XX4 …… fetus 4
O32.9XX5 …… fetus 5
O32.9XX9 …… other fetus
O33 Maternal care for disproportion
O33.0 Maternal care for disproportion due to deformity of maternal pelvic bones
O33.1 Maternal care for disproportion due to generally contracted pelvis
O33.2 Maternal care for disproportion due to inlet contraction of pelvis
O33.3 Maternal care for disproportion due to outlet contraction of pelvis
O33.3XX0 …… not applicable or unspecified
O33.3XX1 …… fetus 1
O33.3XX2 …… fetus 2
O33.3XX3 …… fetus 3
O33.3XX4 …… fetus 4
O33.3XX5 …… fetus 5

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.