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Official Description

Hepatic venography, wedged or free, without hemodynamic evaluation, radiological supervision and interpretation

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 75891 refers to a specific radiological procedure known as hepatic venography, which can be performed either with wedged or free hepatic venous pressures. This procedure is conducted without hemodynamic evaluation, meaning that it does not include the assessment of blood flow gradients or velocities. During hepatic venography, a physician undertakes the task of supervising and interpreting the radiological aspects of the procedure. This involves the use of a catheter that is inserted into the hepatic vein, allowing for the injection of a radiopaque contrast material. The contrast material is essential for visualizing the hepatic vein and its branches on radiographs. The procedure begins with the placement of the hepatic vein catheter, followed by the injection of the contrast agent. Radiographs are then obtained to observe the blood flow through the hepatic vein and its branches. The physician is responsible for monitoring this flow and ensuring the accuracy of the radiological interpretation. The procedure also includes the measurement of wedged or free hepatic venous pressures. For free hepatic pressure, a balloon-tipped catheter is introduced into a distal branch of the hepatic vein without inflating the balloon. Conversely, wedged hepatic venous pressure is measured by inflating the balloon and wedging it into a distal branch, allowing for the collection of pressure readings. Alternatively, an end-hole catheter may be utilized to obtain free hepatic pressure, which is achieved by wedging the catheter tip in the distal hepatic vein. The physician employs fluoroscopic imaging to confirm the proper positioning of the catheter and to ensure that the injection of contrast material results in parenchymal blushing without any reflux along the catheter. After the procedure, the physician reviews the obtained radiographs and provides a comprehensive written interpretation of the findings. It is important to note that CPT® Code 75889 is related but distinct, as it involves hepatic venography with hemodynamic evaluation, which includes additional measurements of flow gradients and velocities.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 75891 is indicated for various clinical scenarios where assessment of the hepatic venous system is necessary. The following conditions may warrant the performance of hepatic venography:

  • Evaluation of Hepatic Venous Obstruction This procedure is utilized to assess for any blockages or obstructions within the hepatic veins that may affect blood flow.
  • Investigation of Liver Disease Hepatic venography can aid in the diagnosis and evaluation of various liver diseases, including cirrhosis and hepatic tumors.
  • Assessment of Portal Hypertension The procedure may be performed to evaluate conditions related to portal hypertension, which can lead to complications such as varices.
  • Preoperative Planning Hepatic venography may be indicated prior to surgical interventions involving the liver to provide critical anatomical information.

2. Procedure

The procedure for CPT® Code 75891 involves several key steps that ensure accurate imaging and assessment of the hepatic venous system. The following procedural steps are performed:

  • Step 1: Catheter Placement The physician begins by placing a catheter into the hepatic vein. This is a critical step that allows for the subsequent injection of contrast material necessary for imaging.
  • Step 2: Injection of Contrast Material Once the catheter is in place, radiopaque contrast material is injected. This contrast agent enhances the visibility of the hepatic vein and its branches during imaging.
  • Step 3: Radiographic Imaging After the injection, radiographs are obtained to visualize the flow of blood through the hepatic vein and its branches. The physician supervises this imaging process to ensure quality and accuracy.
  • Step 4: Measurement of Hepatic Venous Pressures The physician measures both wedged and free hepatic venous pressures. For free hepatic pressure, a balloon-tipped catheter is introduced into a distal hepatic vein branch without inflating the balloon. For wedged hepatic pressure, the balloon is inflated and wedged in a distal branch to obtain pressure readings.
  • Step 5: Fluoroscopic Guidance The physician uses fluoroscopic imaging to confirm the proper wedging of the catheter and to ensure that the injection of contrast material results in parenchymal blushing without reflux along the catheter.
  • Step 6: Interpretation of Results Finally, the physician reviews the radiographs obtained during the procedure and provides a written interpretation of the findings, which is essential for further clinical decision-making.

3. Post-Procedure

After the completion of the hepatic venography procedure coded under CPT® 75891, the physician may provide specific post-procedure care instructions. Patients are typically monitored for any immediate complications related to the catheter insertion or contrast injection. It is essential to observe for signs of bleeding, infection, or adverse reactions to the contrast material. The physician may also discuss the results of the procedure with the patient, outlining any necessary follow-up actions or additional diagnostic steps based on the findings. Recovery time may vary depending on the individual patient's condition and the complexity of the procedure, but most patients can expect to resume normal activities shortly after the procedure, barring any complications.

Short Descr VEIN X-RAY LIVER
Medium Descr HEPATC VNGRPH WDG/FR W/O HEMODYN EVAL RS&I
Long Descr Hepatic venography, wedged or free, without hemodynamic evaluation, radiological supervision and interpretation
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) 6 - Special payment adjustment rules on the technical component (TC) of multiple diagnostic cardiovascular services apply...
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
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 T-Packaged Codes
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) I4B - Imaging/procedure - other
MUE 1
CCS Clinical Classification 191 - Arterio- or venogram (not heart and head)

This is a primary code that can be used with these additional add-on codes.

37252 Addon Code MPFS Status: Active Code APC N ASC N1 Intravascular ultrasound (noncoronary vessel) during diagnostic evaluation and/or therapeutic intervention, including radiological supervision and interpretation; initial noncoronary vessel (List separately in addition to code for primary procedure)
37253 Addon Code MPFS Status: Active Code APC N ASC N1 Intravascular ultrasound (noncoronary vessel) during diagnostic evaluation and/or therapeutic intervention, including radiological supervision and interpretation; each additional noncoronary vessel (List separately in addition to code for primary procedure)
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.
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.
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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
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
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2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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