CPT Code for Transjugular Liver Biopsy

If you have landed on this page, you are likely staring at a procedure report, a coding manual, or a billing dashboard trying to figure out one specific question: What is the correct CPT code for a transjugular liver biopsy?

You are not alone. This is one of those procedures that sits right at the intersection of interventional radiology and gastroenterology. It is complex, it involves multiple steps, and—if you are not careful—it can lead to denied claims faster than you can say “bundled service.”

The short answer is that the primary code you are looking for is CPT 37200.

But here is the catch: it is rarely that simple. Does the code include the imaging guidance? What about the venography? Is it separate from the biopsy itself? And what happens when the physician also measures the portal pressure?

In this guide, we are going to pull back the curtain on the cpt code for transjugular liver biopsy. We will break down the anatomy of the procedure, the coding rules that govern it, the common pitfalls that trip up even experienced coders, and the alternatives you need to know about. By the end of this article, you will feel confident navigating the complexities of vascular access and hepatic tissue sampling.

Let’s get started.

What Exactly Is a Transjugular Liver Biopsy?

Before we dive into the numbers, we need to understand the “why” and the “how.” Coding is always easier when you understand the clinical picture.

A standard liver biopsy is often performed by inserting a needle through the skin (percutaneously) between the ribs. It is quick, but it has risks. For patients with ascites (fluid in the abdomen), bleeding disorders, or severe obesity, going through the skin is dangerous.

This is where the transjugular approach comes in.

The term “transjugular” literally means “through the jugular vein.” Instead of poking a needle through the abdominal wall, the interventional radiologist accesses the internal jugular vein in the neck. They thread a catheter down through the superior vena cava, into the right atrium, and finally into the hepatic veins within the liver.

Once the catheter is stable in the hepatic vein, a biopsy needle is passed through the catheter to take samples of the liver tissue. Because the path is through the blood vessels, any bleeding that occurs from the liver goes back into the bloodstream rather than into the abdominal cavity. This makes it a much safer option for patients with coagulopathies or ascites.

The Clinical Rationale

Physicians order this procedure when they need a tissue diagnosis but cannot risk a percutaneous stick. Common scenarios include:

• Cirrhosis with coagulopathy: When the liver is failing, it stops producing clotting factors. A standard biopsy could cause fatal bleeding.

• Massive ascites: Fluid pushes the liver away from the abdominal wall, making percutaneous access impossible.

• Acute liver failure: When a quick diagnosis is needed, but the patient is too unstable for a surgical approach.

• Post-transplant patients: To monitor for rejection without disrupting the surgical site.

Understanding this clinical context helps us understand why the coding is bundled the way it is.

The Primary Code: CPT 37200 Explained

Let’s get straight to the point. The dedicated code for this service is CPT 37200.

The official descriptor from the American Medical Association (AMA) for CPT 37200 is:
Transcatheter biopsy, liver, percutaneous

Wait—does it say “percutaneous”? Yes. I know that sounds confusing because the approach is technically “transjugular” (endovascular). However, in the language of CPT, “percutaneous” here refers to the fact that the access site (the skin over the jugular vein) is punctured percutaneously. This is the code designated for the transjugular route.

What Does CPT 37200 Include?

According to the National Correct Coding Initiative (NCCI) and standard interventional radiology coding principles, CPT 37200 is a comprehensive code.

When you report 37200, it typically includes:

• Vascular access: The puncture of the internal jugular vein.

• Catheter placement: Guiding the catheter into the hepatic veins.

• Contrast injection (Venography): Injecting dye to confirm placement and visualize the hepatic vein anatomy.

• Biopsy: The actual passing of the biopsy needle and collection of tissue samples.

• Basic imaging guidance: Typically fluoroscopy (real-time X-ray) to guide the catheter and needle.

The “Bundled” Nature

One of the biggest mistakes new coders make is trying to unbundle this service. You cannot bill for the venography separately (like a standard CPT 36012) alongside 37200. You cannot bill for the catheter placement separately.

The rationale is that the venography is a necessary component of the biopsy. You cannot perform the biopsy without seeing where the catheter is. Therefore, the imaging and the access are considered inherent to the procedure.

However, there is a massive caveat here that we will discuss in the next section: Pressure measurements.

The Great Debate: 37200 vs. 36000 Series

If you look in the CPT manual, you will find a family of codes for “Transcatheter Biopsy” in the 37200 series. But you will also find codes for “Venography” and “Catheter Placement” in the 36000 series.

So, how do you choose?

If the provider performs a diagnostic venogram to look for a clot (thrombosis) and then, based on that finding, decides to do a biopsy, the coding changes. But if the provider does the venogram specifically to perform the biopsy, it is included.

Let me show you a quick comparison table to clarify this.

The Critical Add-On: Portal Pressure Measurements (HVPG)

If you have been coding for a while, you know that a transjugular liver biopsy is often accompanied by a Hepatic Venous Pressure Gradient (HVPG) measurement.

In many patients, especially those with suspected cirrhosis or portal hypertension, the doctor wants to know two things:

1. What does the tissue look like? (Biopsy)

2. How high is the pressure in the portal system? (Hemodynamics)

In the world of coding, pressure measurements are the exception to the bundling rule.

When the physician performs a hemodynamic evaluation (measuring the wedged and free hepatic vein pressures) to calculate the portal pressure gradient, this is considered a separate, distinct, and medically necessary service from the biopsy.

How to Code HVPG with Transjugular Biopsy

There is no single “perfect” code for this that everyone agrees on, but the industry standard is to use CPT 36012 (or sometimes 75835) with a modifier to indicate it is distinct.

Option A: Using 36012

• 37200 (Transjugular liver biopsy)

• 36012 (Selective catheter placement, venous system; hepatic venography) – appended with Modifier 59 (Distinct Procedural Service) or Modifier XU (Unusual non-overlapping service).

Option B: Using 75835

• 75835 (Radiological supervision and interpretation, venous catheterization for pressure measurement, hepatic)

• Some coders prefer this because the descriptor specifically mentions pressure measurement.

Note: Payer policies vary significantly on this. Some commercial payers want 36012. Medicare often prefers 75835 for the pressure study component. Always check your local Medicare Administrative Contractor (MAC) guidelines.

Anatomy of the Coding: A Step-by-Step Breakdown

Let’s walk through a typical operative report and translate it into codes.

The Scenario:
Dr. Lee performs a transjugular liver biopsy on a 58-year-old with ascites and coagulopathy. Using ultrasound guidance, she accesses the right internal jugular vein. She advances a catheter to the hepatic vein. She injects contrast to confirm placement. She then performs a wedged pressure measurement, followed by a free hepatic pressure measurement. Finally, she uses a 19-gauge biopsy needle to obtain four cores of liver tissue. She documents that the venography was performed solely to guide the biopsy.

The Incorrect Coding:

• 36012 (Venography)

• 37200 (Biopsy)

• 77012 (Fluoroscopic guidance)

The Correct Coding (with pressure study):

• 37200 (Biopsy – includes access, catheter navigation, and fluoroscopy)

• 36012 (Hepatic venography for pressure measurement – Modifier 59)
  Alternatively: 75835 (Pressure measurement)

Why?
The ultrasound guidance used to access the vein (the “stick”) is not separately billable with a surgical code like 37200. The fluoroscopy is bundled. The venography is bundled unless it is specifically tied to the pressure measurement.

Understanding the NCCI Edits

To truly master this code, you need to understand the National Correct Coding Initiative (NCCI). The NCCI was created to prevent improper payment for services that should not be billed together.

CPT 37200 has a “comprehensive” status with many other codes. This means that if you try to bill 37200 and, say, a standard diagnostic venography code on the same day, the Medicare system will automatically deny the venography unless you use the correct modifier.

Common NCCI Pairs

Here are codes that are typically bundled into 37200 (meaning you generally cannot bill them separately unless a modifier is justified):

• 36011 – Selective catheter placement, venous system; first order.

• 36012 – Selective catheter placement, venous system; hepatic (when done for biopsy guidance).

• 75726 – Visceral angiography (if done only to map for the biopsy).

• 77001 – Fluoroscopic guidance for central venous access.

When a Modifier is Allowed

A modifier (specifically -59 or the more specific -XU) is allowed only when:

1. The venography is performed to evaluate a distinct problem (e.g., suspected clot) before the decision to biopsy is made.

2. The pressure measurement is performed (as discussed above).

3. The biopsy is performed on a different date of service than the access.

If the provider documents, “We performed venography to confirm the catheter was in the hepatic vein prior to biopsy,” you cannot unbundle it.

Alternatives and Associated Codes

While 37200 is the star of the show, it is essential to know the alternatives. What if the physician chooses a different route? Or what if they don’t do a biopsy at all?

1. Percutaneous Liver Biopsy (CPT 47000)

If the patient is healthy enough to undergo the standard approach, the code changes entirely.

• CPT 47000: Biopsy of liver, needle; percutaneous.

• Key difference: This does not involve vascular access. It is a much simpler code with a lower Relative Value Unit (RVU). Imaging guidance (ultrasound or CT) is not bundled with 47000, so you would typically add 76942 (Ultrasound guidance) or 77012 (CT guidance).

2. Laparoscopic Liver Biopsy

If the surgeon goes in through the abdomen with a scope to visualize the liver directly.

• CPT 49321: Laparoscopy, surgical; biopsy (single or multiple).

• This is used when the patient is already undergoing a laparoscopic procedure or when the surgeon needs direct visualization.

3. Transvenous Biopsy (Non-Liver)

Sometimes, the same technique is used for other organs.

• CPT 37202: Transcatheter biopsy, mediastinum (used for lymph nodes).

• CPT 37204: Transcatheter biopsy, retroperitoneal.

Reimbursement Realities and RVUs

Understanding the financial weight of the code helps justify the complexity of the documentation.

The work relative value unit (wRVU) for CPT 37200 is significantly higher than a standard percutaneous biopsy. This reflects the higher skill level, the risk of vascular access, and the equipment required.

As of 2026 (depending on your geographic practice cost index), a rough comparison looks like this:

Note: These are estimates. Actual reimbursement depends on contracts, location, and payer.

Because the reimbursement is higher, payers scrutinize this code more heavily. They want to see documentation that justifies the transjugular approach. If the documentation doesn’t mention “coagulopathy,” “ascites,” or “failed percutaneous attempt,” you might face an audit risk.

Common Coding Pitfalls (And How to Avoid Them)

Let’s look at the most frequent errors that cause denials for the transjugular liver biopsy.

Pitfall 1: Reporting the Access Code

Some coders see “internal jugular vein access” and think they should bill a central venous access code like 36556 (Insertion of non-tunneled central venous catheter).
The Fix: No. The access is part of the therapeutic/diagnostic procedure (37200). You cannot bill a central line placement unless the line was left in for a separate purpose (e.g., for medication administration) and the documentation explicitly states the line was left for that reason.

Pitfall 2: Forgetting the “Unlisted” Trap

Sometimes, if the physician performs a transjugular biopsy but also performs an extensive angioplasty or stent placement during the same session, you might think to combine codes.
The Fix: Check if the biopsy is incidental to the vascular intervention. If the primary purpose was to treat a vascular issue (like a TIPS revision) and a biopsy was just grabbed on the way out, you may need to use an unlisted code or append modifiers. Always look for the “primary” procedure.

Pitfall 3: Misusing Modifier 59

Modifier 59 is one of the most audited modifiers in medical coding. If you are billing 37200 and 36012-59, your documentation must explicitly state:

• “Pressure measurements were performed.”

• “The pressure measurements were medically necessary to evaluate portal hypertension.”

• The venography (contrast injection) was repeated specifically for the pressure tracing, separate from the contrast used for the biopsy localization.

If the report says, “Contrast was injected to locate the hepatic vein and measure pressure,” you are safe. If it just says, “Contrast was injected to confirm placement,” you are not safe.

Documentation Requirements

For the code to hold up under audit, the physician’s report needs to contain specific elements. As a coder or biller, you should be looking for these in the report before you submit the claim.

Required Elements for 37200:

1. Indication: Why the transjugular approach? (e.g., “Patient has INR 2.5 and large ascites”).

2. Access Site: Confirmation of the right or left internal jugular vein.

3. Catheter Navigation: Description of the path (Jugular > SVC > RA > Hepatic Vein).

4. Contrast Injection: Documentation that contrast was used to confirm the catheter position.

5. Biopsy Action: Number of passes, needle type (e.g., 19-gauge Quick-Core), and confirmation of adequate tissue.

6. Specimen Handling: How the specimen was processed.

Additional Elements for HVPG (to support 36012/75835):

1. Wedged Pressure: Measurement obtained.

2. Free (or Inferior Vena Cava) Pressure: Measurement obtained.

3. Gradient Calculation: A calculation or statement like “The gradient is 12 mmHg, consistent with portal hypertension.”

4. Medical Necessity: Why was the gradient needed? (e.g., “To evaluate the severity of portal hypertension before starting beta-blockers”).

The Role of Imaging Guidance

One of the most confusing aspects of interventional radiology coding is “who supervises and interprets the imaging?”

In the context of CPT 37200:

• Fluoroscopy: The physician who performs the procedure is typically the one interpreting the fluoroscopy in real-time. This is bundled into the surgical code. You do not add 77001.

• Ultrasound for Access: If the physician uses ultrasound to visualize the internal jugular vein before sticking it, this is also generally considered a component of the procedure. You cannot bill a separate “ultrasound guidance for vascular access” code (e.g., 76937) unless the documentation meets strict criteria about real-time documentation and verification of patency. In most transjugular cases, it is bundled.

A Note on Facility vs. Professional Billing

It is crucial to understand the difference between the Professional Component (PC) and the Technical Component (TC) .

• Professional Component (Modifier 26): This is the physician’s work. The interpretation of the imaging, the decision-making, and the performance of the procedure.

• Technical Component (Modifier TC): This is the facility’s cost. The use of the room, the equipment, the nursing staff, and the supplies.

When a hospital bills for this procedure, they split the claim. The facility bills the TC (often on a UB-04 form) to cover overhead. The physician bills the PC (on a CMS-1500) for their professional services.

If you are a physician coder, you are looking at 37200-26.

If you are a facility coder, you are looking at 37200-TC (or the APC assignment).

Frequently Asked Questions (FAQ)

Let’s address some of the most common questions that pop up regarding this specific code.

Q1: Can I bill for the biopsy if the doctor only got “suboptimal” tissue?
A: Generally, yes. If the physician performed the procedure, documented the attempt, and submitted the specimen to pathology, you can bill the code. Reimbursement is for the procedure performed, not the diagnostic outcome. However, if the physician aborted the procedure before obtaining any tissue due to an anatomical issue, you may need to use a modifier (like -52, Reduced Services) or the appropriate radiology supervision code for the work performed.

Q2: What about the specimen handling? Is that separate?
A: No. The handling of the tissue (placing it in formalin, labeling it, sending it to the lab) is included in the surgical code. The pathology department will bill separately for the reading of the slides (e.g., 88305, Level IV – Surgical pathology).

Q3: Is there a difference between “transjugular” and “transvenous”?
A: In common usage, “transjugular” implies the access point is the jugular vein. “Transvenous” implies any venous access (femoral, jugular, etc.). However, for coding purposes, CPT 37200 covers the transvenous approach to the liver. If the doctor goes in through the femoral vein to reach the liver, you still use 37200.

Q4: My doctor performed a TIPS procedure (Transjugular Intrahepatic Portosystemic Shunt) and a biopsy. Can I bill both?
A: This is complex. If the TIPS (CPT 37182 or 37183) is the primary procedure, the biopsy is often considered an incidental part of the procedure. You usually cannot bill 37200 separately because the access, navigation, and venography are all captured in the TIPS code. However, if the biopsy was performed for a distinct reason (e.g., evaluating for hepatocellular carcinoma) and is documented as a separate, significant service, you may append modifier -59 to 37200. This is a high-risk coding scenario; review the NCCI edits carefully.

Q5: What code do I use for the Radiology Supervision and Interpretation if I am a radiologist billing the professional component?
A: If you are the radiologist performing the procedure and interpreting the images, the professional component is included in 37200-26. You do not need to bill a separate imaging code like 75625 (Hepatic venography) because that would be double-dipping for the same work. The only exception is if a second radiologist who is not performing the biopsy interprets the venogram separately—which is rare in this scenario.

The Future of Transjugular Coding

As we move through 2026, the focus in medical coding remains on specificity and reducing administrative burden. The AMA has been working on streamlining codes for vascular procedures.

Currently, there is no indication that the code set for transjugular biopsy will change dramatically in the immediate future. However, the industry is moving toward digital quality measures. Documentation for this code will likely become more automated.

For coders, this means the demand for precise documentation of the medical necessity for the transjugular approach will only increase. If you are documenting or coding these charts, emphasize:

• The bleeding risk (INR, platelet count).

• The anatomical barriers (ascites, obesity).

• The complexity (prior failed attempts, unusual anatomy).

Conclusion

Navigating the cpt code for transjugular liver biopsy is less about memorizing a single number and more about understanding the clinical story behind the procedure.

To summarize:

1. The primary code is CPT 37200. It is comprehensive and bundles the access, navigation, and basic imaging.

2. The exception is hepatic pressure measurement (HVPG) , which is typically billed separately using 36012 or 75835 with a modifier.

3. Always verify the medical necessity for the transjugular approach in the documentation to withstand audits.

4. Avoid unbundling services like venography or fluoroscopy unless the documentation clearly supports a distinct and separate service.

By focusing on accurate documentation and respecting the NCCI bundling rules, you ensure that the provider is reimbursed fairly for the high level of skill required for this complex procedure, while staying compliant with payer requirements.

Additional Resources

For further reading and to stay updated on the latest coding guidelines, I recommend the following trusted resource:

• Society of Interventional Radiology (SIR) Coding Corner: The SIR website offers quarterly updates, webinars, and detailed coding guides specific to interventional procedures, including transjugular biopsies. You can access their coding resources at www.sirweb.org/practice-management/coding/.