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Official Description

Ultrasound, pregnant uterus, real time with image documentation, transvaginal

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A real-time transvaginal obstetrical ultrasound, designated by CPT® Code 76817, is a diagnostic imaging procedure specifically designed to assess the fetus, the pregnant uterus, and the surrounding maternal pelvic structures. This procedure utilizes high-frequency sound waves that are beyond the range of human hearing to create images of internal body structures. The ultrasound machine emits these sound waves, which travel through the body and bounce off various tissues, returning to the machine at different speeds based on the density of the tissues they encounter. This variation in speed allows the ultrasound system to generate detailed images that are displayed on a monitor for evaluation. Before the procedure begins, the patient is instructed to empty her bladder to enhance the quality of the images obtained. A protective cover is placed over the transducer to maintain hygiene, and an acoustic coupling gel is applied to the cover to facilitate the transmission of sound waves. The transducer is then carefully inserted into the vagina, allowing the technician or physician to capture images of the fetus, the pregnant uterus, and other relevant maternal structures from multiple angles. Any abnormalities detected during the imaging process are thoroughly evaluated. Following the procedure, the physician reviews the captured images and provides a comprehensive written interpretation, which is essential for further clinical decision-making and patient management.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The transvaginal obstetrical ultrasound (CPT® Code 76817) is indicated for various clinical scenarios during pregnancy. The following conditions or situations may warrant the use of this procedure:

  • Evaluation of Fetal Development This procedure is performed to assess the growth and development of the fetus, ensuring that it is progressing normally throughout the pregnancy.
  • Assessment of Pregnancy Viability It is utilized to confirm the presence of a viable intrauterine pregnancy, particularly in cases of early pregnancy where there may be concerns about potential complications.
  • Investigation of Abnormal Findings The ultrasound is indicated when there are abnormal findings during a routine examination or when the patient presents with symptoms such as vaginal bleeding or pelvic pain.
  • Monitoring of High-Risk Pregnancies This procedure is essential for monitoring pregnancies that are classified as high-risk due to factors such as maternal health issues or previous pregnancy complications.

2. Procedure

The transvaginal obstetrical ultrasound procedure involves several key steps to ensure accurate imaging and assessment. The following outlines the procedural steps:

  • Preparation of the Patient The patient is first instructed to empty her bladder to improve the quality of the ultrasound images. This step is crucial as a full bladder can obscure the view of the pelvic structures.
  • Application of Protective Cover and Gel A protective cover is placed over the transducer to maintain hygiene during the procedure. Acoustic coupling gel is then applied to the cover, which helps facilitate the transmission of sound waves from the transducer into the body.
  • Insertion of the Transducer The transducer is gently inserted into the vagina. This allows for closer proximity to the uterus and fetus, enabling high-resolution imaging of the internal structures.
  • Image Acquisition As the transducer is maneuvered, real-time images of the fetus, pregnant uterus, and surrounding maternal pelvic structures are obtained from various orientations. This comprehensive imaging is essential for a thorough evaluation.
  • Evaluation of Abnormalities Any abnormalities detected during the imaging process are carefully assessed. The technician or physician may take additional images or measurements as needed to ensure a complete evaluation.
  • Review and Interpretation After the imaging is complete, the physician reviews the captured images and provides a written interpretation, summarizing the findings and any necessary recommendations for further care.

3. Post-Procedure

After the transvaginal obstetrical ultrasound, the patient may be advised to resume normal activities unless otherwise instructed by the physician. There are typically no specific post-procedure care requirements, as the procedure is non-invasive and generally well-tolerated. The physician will discuss the findings with the patient, including any abnormalities detected and the implications for ongoing care. Follow-up appointments may be scheduled as necessary based on the results of the ultrasound and the patient's overall pregnancy management plan.

Short Descr TRANSVAGINAL US OBSTETRIC
Medium Descr US PREG UTERUS REAL TIME W/IMAGE DCMTN TRANSVAG
Long Descr Ultrasound, pregnant uterus, real time with image documentation, transvaginal
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 01 - Procedure must be performed under the general supervision of a physician.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator STV-Packaged Codes
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) I3B - Echography/ultrasonography - abdomen/pelvis
MUE 1
CCS Clinical Classification 197 - Other diagnostic ultrasound
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
GC This service has been performed in part by a resident under the direction of a teaching physician
TC Technical component; under certain circumstances, a charge may be made for the technical component alone; under those circumstances the technical component charge is identified by adding modifier 'tc' to the usual procedure number; technical component charges are institutional charges and not billed separately by physicians; however, portable x-ray suppliers only bill for technical component and should utilize modifier tc; the charge data from portable x-ray suppliers will then be used to build customary and prevailing profiles
CR Catastrophe/disaster related
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
GA Waiver of liability statement issued as required by payer policy, individual case
GB Claim being re-submitted for payment because it is no longer covered under a global payment demonstration
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
KX Requirements specified in the medical policy have been met
LT Left side (used to identify procedures performed on the left side of the body)
MC Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of electronic health record or clinical decision support mechanism vendor issues
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
Q5 Service furnished under a reciprocal billing arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
SB Nurse midwife
U6 Medicaid level of care 6, as defined by each state
X1 Continuous/broad services: for reporting services by clinicians, who provide the principal care for a patient, with no planned endpoint of the relationship; services in this category represent comprehensive care, dealing with the entire scope of patient problems, either directly or in a care coordination role; reporting clinician service examples include, but are not limited to: primary care, and clinicians providing comprehensive care to patients in addition to specialty care
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2011-01-01 Changed Short description changed.
2003-01-01 Added First appearance in code book in 2003.
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