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    OpenPayerBilling CodesMaternal care related to the fetus and amniotic cavity and possible delivery problemsICD-10-CM o41-other-disorders-of-amniotic-fluid
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    ICD-10-CM Code For Other Disorders Of Amniotic Fluid And Membranes: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group O41 includes disorders of the amniotic fluid and fetal membranes such as oligohydramnios, polyhydramnios, and other membrane abnormalities that affect the intrauterine environment. These ICD-10-CM diagnosis codes are used to document clinical scenarios involving abnormal amniotic fluid volume, membrane rupture issues, or complications that may influence fetal development and delivery decisions. Accurate coding within the ICD-10-CM O41 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM O41: Other Disorders Of Amniotic Fluid And Membranes Overview

    The ICD-10-CM O41 group encompasses conditions affecting the amniotic fluid and fetal membranes during pregnancy, such as oligohydramnios, polyhydramnios, and complications of membranes. These diagnoses target the fetal environment and gestational support structures and can impact fetal growth and delivery planning. Accurate coding is important for reflecting clinical complexity and supporting appropriate reimbursement for maternal-fetal care.

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    When to Use

    Use codes from this group when documentation indicates abnormal amniotic fluid volume, membrane rupture issues, or other specified membrane disorders during prenatal care. Assign the most specific code available based on clinical findings, gestational age, and documented complications.

    ICD-10-CM Codes

    168 rows

    ICD-10-CM CodeDescription
    O41.00X0Oligohydramnios, unspecified trimester, not applicable or unspecified
    O41.00X1Oligohydramnios, unspecified trimester, fetus 1
    O41.00X2Oligohydramnios, unspecified trimester, fetus 2
    O41.00X3Oligohydramnios, unspecified trimester, fetus 3
    O41.00X4Oligohydramnios, unspecified trimester, fetus 4
    O41.00X5Oligohydramnios, unspecified trimester, fetus 5
    O41.00X9Oligohydramnios, unspecified trimester, other fetus
    O41.01X0Oligohydramnios, first trimester, not applicable or unspecified
    O41.01X1Oligohydramnios, first trimester, fetus 1
    O41.01X2Oligohydramnios, first trimester, fetus 2
    O41.01X3Oligohydramnios, first trimester, fetus 3
    O41.01X4Oligohydramnios, first trimester, fetus 4
    O41.01X5Oligohydramnios, first trimester, fetus 5
    O41.01X9Oligohydramnios, first trimester, other fetus
    O41.02X0Oligohydramnios, second trimester, not applicable or unspecified
    O41.02X1Oligohydramnios, second trimester, fetus 1
    O41.02X2Oligohydramnios, second trimester, fetus 2
    O41.02X3Oligohydramnios, second trimester, fetus 3
    O41.02X4Oligohydramnios, second trimester, fetus 4
    O41.02X5Oligohydramnios, second trimester, fetus 5

    Showing 1–20 of 168

    • More pages

    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 32-year-old pregnant woman at 28 weeks’ gestation presents to the obstetric triage unit with sudden onset of decreased fetal movements and a complaint of markedly reduced abdominal girth. Ultrasound demonstrates oligohydramnios with an amniotic fluid index well below expected for gestational age without evidence of ruptured membranes; fetal growth restriction is also noted, prompting increased surveillance and possible early delivery planning. A code from this group is assigned to capture the amniotic fluid disorder contributing to fetal compromise. Typical codes: O41.02X3, O41.02X4
    • A 38-year-old woman at 37 weeks arrives to labor and delivery reporting a gush of fluid followed by persistent leakage; sterile speculum exam confirms premature rupture of membranes with thick, meconium-stained fluid and signs of maternal fever. This acute intrapartum event requires maternal-fetal monitoring and classification of abnormal amniotic fluid or membrane condition as a complicating factor in delivery. Typical codes: O41.00X1, O41.00X3
    • A 26-year-old multiparous patient in routine prenatal clinic at 20 weeks is found to have polyhydramnios on screening ultrasound with complaints of increasing dyspnea and abdominal discomfort; workup is undertaken to identify underlying fetal anomalies or maternal conditions and to plan follow-up. The diagnosis is recorded to indicate excessive amniotic fluid as an ongoing pregnancy complication requiring monitoring and potential intervention. Typical codes: O41.12X3, O41.13X3

    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

    O42-PREMATURE-RUPTURE-OF-MEMBRANES

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

    O43-PLACENTAL-DISORDERS

    ICD-10-CM Code For Placental Disorders: 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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