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    v1.0.30
    OpenPayerBilling CodesMaternal care related to the fetus and amniotic cavity and possible delivery problemsICD-10-CM o48-late-pregnancy
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    ICD-10-CM Code For Late Pregnancy: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group O48 includes diagnoses related to late pregnancy, such as late pregnancy complications and indications for increased surveillance or consideration of delivery timing. These ICD-10-CM diagnosis codes are used to document clinical scenarios involving maternal care related to the fetus and amniotic cavity, capturing factors like gestational age concerns, fetal status, and potential delivery problems. Accurate coding within the ICD-10-CM O48 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM O48: Late Pregnancy Overview

    This code group captures conditions related to the later stages of pregnancy when monitoring for fetal well-being and timing of delivery becomes important. It targets maternal care related to the fetus and amniotic cavity and possible delivery problems in late gestation. Accurate coding matters for clinical continuity and reimbursement because it documents increased surveillance, interventions, and maternal-fetal risk status.

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    When to Use

    Use a code from this group when a pregnant patient in late gestation requires evaluation, monitoring, or management for concerns related to the fetus, amniotic cavity, or potential delivery problems. These codes apply when clinical documentation indicates late pregnancy complications, nonreassuring fetal status, or other conditions influencing delivery planning.

    ICD-10-CM Codes

    2 rows

    ICD-10-CM CodeDescription
    O48.0Post-term pregnancy
    O48.1Prolonged pregnancy

    DRG Codes

    6 rows

    DRG CodeDescription
    817Other Antepartum Diagnoses with O.R. Procedures with MCC
    818Other Antepartum Diagnoses with O.R. Procedures with CC
    819Other Antepartum Diagnoses with O.R. Procedures without CC/MCC
    831Other Antepartum Diagnoses without O.R. Procedures with MCC
    832Other Antepartum Diagnoses without O.R. Procedures with CC
    833Other Antepartum Diagnoses without O.R. Procedures without CC/MCC

    Typical Clinical Scenarios

    • A 39-week gestation obstetric patient presents for routine prenatal assessment noting decreased fetal movements but otherwise stable vital signs; ultrasound shows oligohydramnios with normal fetal growth, and labor is not yet active. A diagnosis from this group is assigned because the concern arises late in pregnancy related to the amniotic fluid environment and timing of delivery decisions. Typical codes: O48.0
    • A 41-week pregnant patient arrives to triage reporting persistent post-term gestational age confirmed by last menstrual period and first trimester ultrasound; she is evaluated for induction planning due to prolonged pregnancy without spontaneous labor. A late-pregnancy care code from this group is used to document maternal management related to prolonged gestation and monitoring of the fetus and amniotic cavity. Typical codes: O48.1
    • A patient at 40 5/7 weeks with hypertension and decreased fetal surveillance is admitted for increased antenatal testing and consideration of delivery after nonreassuring monitoring and oligohydramnios on ultrasound; the care team documents late-pregnancy management as part of the maternal-fetal assessment prior to delivery. Typical codes: O48.0, O48.1

    Related Codes

    O30-MULTIPLE-GESTATION-PREGNANCY

    ICD-10-CM Code For Multiple Gestation: Group Overview

    O31-COMPLICATIONS-SPECIFIC-TO-MULTIPLE-GESTATION

    ICD-10-CM Code For Complications Specific To Multiple Gestation: Group Overview

    O32-MALPRESENTATION-OF-FETUS

    ICD-10-CM Code For Maternal Care For Malpresentation Of Fetus: Group Overview

    O33-MATERNAL-CARE-FOR-DISPROPORTION

    ICD-10-CM Code For Maternal Care For Disproportion: Group Overview

    O34-ABNORMALITY-OF-PELVIC-ORGANS

    ICD-10-CM Code For Maternal Care For Abnormality Of Pelvic Organs: Group Overview

    O35-MATERNAL-CARE-FOR-FETAL-ABNORMALITY

    ICD-10-CM Code For Maternal Care For Known Or Suspected Fetal Abnormality And Damage: Group Overview

    O36-MATERNAL-CARE-OTHER-FETAL-PROBLEMS

    ICD-10-CM Code For Maternal Care For Other Fetal Problems: Group Overview

    O40-POLYHYDRAMNIOS

    ICD-10-CM Code For Polyhydramnios: Group Overview

    O41-OTHER-DISORDERS-OF-AMNIOTIC-FLUID

    ICD-10-CM Code For Other Disorders Of Amniotic Fluid And Membranes: Group Overview

    O42-PREMATURE-RUPTURE-OF-MEMBRANES

    ICD-10-CM Code For Premature Rupture Of Membranes: Group Overview

    Showing 1–10 of 15

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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