2018 ICD-10-CM Diagnosis Code O26.21

Pregnancy care for patient with recurrent pregnancy loss, first trimester

ICD-10-CM Coding Rules
The following code(s) above O26.21 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 O26.21:
  • O00-O9A
    2018 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
  • O20-O29
    2018 ICD-10-CM Range O20-O29

    Other maternal disorders predominantly related to pregnancy

    Type 2 Excludes
    • maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
    • maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
    Other maternal disorders predominantly related to pregnancy
ICD-10-CM O26.21 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert O26.21 to ICD-9-CM

Code History
ICD-10-CM Codes Adjacent To O26.21
O26.01 …… first trimester
O26.02 …… second trimester
O26.03 …… third trimester
O26.1 Low weight gain in pregnancy
O26.10 …… unspecified trimester
O26.11 …… first trimester
O26.12 …… second trimester
O26.13 …… third trimester
O26.2 Pregnancy care for patient with recurrent pregnancy loss
O26.20 …… unspecified trimester
O26.21 …… first trimester
O26.22 …… second trimester
O26.23 …… third trimester
O26.3 Retained intrauterine contraceptive device in pregnancy
O26.30 …… unspecified trimester
O26.31 …… first trimester
O26.32 …… second trimester
O26.33 …… third trimester
O26.4 Herpes gestationis
O26.40 …… unspecified trimester
O26.41 …… first trimester

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