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    v1.0.30
    OpenPayerBilling CodesDiagnostic Ultrasound Procedures of the Pelvis ObstetricalCPT cpt-76812-add-on-transabdominal-ultrasound-additional-fetus-detailed-exam
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    CPT 76812: Transabdominal Detailed Examination of Additional Fetus

    Medicare pays $135 on average nationally for this procedure.

    CPT code 76812 is an add-on transabdominal ultrasound procedure used to perform a detailed sonographic examination of an additional fetus separate from the routine fetal and maternal survey; the service type is diagnostic obstetrical ultrasound (add-on) and the typical site of service is an outpatient imaging suite or hospital radiology/obstetrics department where prenatal ultrasound evaluations are performed.

    For related coverage guidance, see recent payer policy updates: Abortion Services, Prolonged Services for Labor Management, Prolonged Services for Labor Management.

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is a pregnant individual undergoing ultrasound evaluation of a multifetal pregnancy (twins or higher-order) during the second-trimester anatomic survey or when a specific concern arises for one fetus. The primary ultrasound (routine fetal and maternal examination) is performed first, including fetal biometry, placenta, amniotic fluid assessment, and maternal uterus and adnexa. When one fetus requires more detailed transabdominal imaging — for example, suspected structural anomaly, abnormal growth pattern, discordant anatomy, or targeted cardiac evaluation — the provider performs an additional detailed transabdominal ultrasound of that specific fetus under add-on code 76812 in the same encounter. Typical workflow: scheduling for obstetric ultrasound, patient arrival and consent, baseline maternal and fetal assessment (billing primary obstetric ultrasound code such as fetal anatomic survey), identification of an indication to image an additional fetus in detail, acquisition of additional targeted images of the separate fetus, documentation of findings and measurements, and final report. Typical site of service is an outpatient radiology or obstetrics/gynecology imaging suite, ambulatory surgery center when related to maternal procedures, or inpatient maternal-fetal medicine unit for high-risk patients. A realistic scenario: a patient with dichorionic diamniotic twins undergoes a routine anatomic survey; one twin shows ventricular size discrepancy prompting the provider to perform a focused detailed transabdominal ultrasound of that affected twin and report using 76812 as the add-on procedure.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    76805Fetal and maternal ultrasound, first trimester (less than 14 weeks), transabdominalPerformed when initial trimester assessment is required; not additive to 76812 but may precede it in care timeline
    76811Fetal and maternal ultrasound, transabdominal; limited or follow-upA limited scan that may prompt need for the additional detailed examination billed with 76812
    76816Fetal and maternal ultrasound, transabdominal; in a multiple gestation, first fetusUsed for detailed imaging of one fetus in a multiple gestation; 76812 is an add-on for an additional fetus
    76817Fetal and maternal ultrasound, transabdominal; in a multiple gestation, each additional fetus (add-on)Related add-on code used in multiple gestation imaging workflows; complements 76812 when imaging multiple fetuses
    93306Echocardiography, transthoracic, real-time with image documentation, fetal or pediatric

    Related Modifiers

    8 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    77Modifier 77 indicates that a previously performed procedure or service was legitimately repeated by a different physician or other qualified health care professional. The AMA’s CPT definition…- Use modifier 77 when a basic procedure or service already performed is repeated by a different physician or other qualified health care professional (for example, a second provider independently…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207RH0000X
    207RE0101X
    2080P0207X
    363L00000X
    207K00000X
    332BD1200X
    163WD0400X
    342000000X

    Related Payer Policy Updates

    Specialty: Obstetrics/Gynecology1 / 3

    10 rows

    PolicyPayerEffective Date
    Abortion ServicesNew Mexico Health Care Authority2027-01-01
    Prolonged Services for Labor ManagementPremera Bluecross2027-01-01
    Prolonged Services for Labor ManagementPremera Bluecross2027-01-01
    Maternal Serum Testing for Prediction of Adverse Obstetric OutcomesPremera Bluecross2026-10-01
    Maternal Serum Testing for Prediction of Adverse Obstetric OutcomesPremera Bluecross2026-10-01
    Maternal Serum Testing for Prediction of Adverse Obstetric OutcomesBlue Cross Blue Shield - Massachusetts2026-10-01
    Cervical Cancer ScreeningOscar Health2026-10-01
    Prenatal Testing for Fetal AneuploidyOscar Health2026-10-01
    Diagnosis of VaginitisOscar Health2026-10-01
    Prenatal Screening (Nongenetic)Oscar Health2026-10-01

    Related Codes

    CPT-76801-FIRST-TRIMESTER-TRANSABDOMINAL-OBSTETRIC-ULTRASOUND

    CPT 76801: First-Trimester Transabdominal Obstetric Ultrasound

    CPT-76802-ADD-ON-TRANSABDOMINAL-ULTRASOUND-ADDITIONAL-GESTATIONAL-SAC

    CPT 76802: Transabdominal Ultrasound for Additional Gestational Sac

    CPT-76805-TRANSABDOMINAL-OBSTETRIC-ULTRASOUND-SECOND-TRIMESTER

    CPT 76805: Transabdominal Obstetric Ultrasound, >14 Weeks

    CPT-76810-ADD-ON-TRANSABDOMINAL-ULTRASOUND-ADDITIONAL-GESTATION

    CPT 76810: Transabdominal Ultrasound for Additional Gestation Sacs

    CPT-76811-OBSTETRIC-TRANSABDOMINAL-ULTRASOUND-FETAL-ANATOMY-SURVEY

    CPT 76811: Transabdominal Obstetric Ultrasound with Detailed Fetal Anatomy

    CPT-76813-FIRST-TRIMESTER-NUCHAL-TRANSLUCENCY-ULTRASOUND

    CPT 76813: First-Trimester Fetal Nuchal Translucency Ultrasound

    CPT-76814-FIRST-TRIMESTER-NUCHAL-TRANSLUCENCY-ADD-ON

    CPT 76814: First‑Trimester Fetal Nuchal Translucency Measurement

    CPT-76815-LIMITED-FETAL-ULTRASOUND

    CPT 76815: Limited Fetal Ultrasound Examination

    CPT-76816-FOLLOW-UP-FETAL-ULTRASOUND-REEXAMINATION

    CPT 76816: Fetal Reexamination After Abnormal Transabdominal Ultrasound

    CPT-76817-TRANSVAGINAL-OBSTETRIC-ULTRASOUND

    CPT 76817: Transvaginal Ultrasound of Pregnant Uterus

    Showing 1–10 of 18

    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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    Used when dedicated fetal echocardiography is required; may be performed alongside 76812 when cardiac detail is needed