2018 ICD-10-CM Diagnosis Code O48.1

Prolonged pregnancy

ICD-10-CM Coding Rules
Applicable To
  • Pregnancy which has advanced beyond 42 completed weeks gestation
The following code(s) above O48.1 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 O48.1:
  • 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
Approximate Synonyms Clinical Information ICD-10-CM O48.1 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert O48.1 to ICD-9-CM

Code History

Diagnosis Index entries containing back-references to O48.1:

ICD-10-CM Codes Adjacent To O48.1
O46.93 …… third trimester
O47 False labor
O47.0 False labor before 37 completed weeks of gestation
O47.00 …… unspecified trimester
O47.02 …… second trimester
O47.03 …… third trimester
O47.1 False labor at or after 37 completed weeks of gestation
O47.9 False labor, unspecified
O48 Late pregnancy
O48.0 Post-term pregnancy
O48.1 Prolonged pregnancy
O60 Preterm labor
O60.0 Preterm labor without delivery
O60.00 …… unspecified trimester
O60.02 …… second trimester
O60.03 …… third trimester
O60.1 Preterm labor with preterm delivery
O60.10 Preterm labor with preterm delivery, unspecified trimester
O60.10X0 …… not applicable or unspecified
O60.10X1 …… fetus 1
O60.10X2 …… fetus 2

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