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Official Description

Hepatobiliary system imaging, including gallbladder when present;

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 78226 refers to a diagnostic imaging procedure known as hepatobiliary system imaging, which includes the evaluation of the gallbladder when it is present. This imaging technique utilizes nuclear medicine to track the production and flow of bile from the liver to the small intestine. The procedure employs a radioactive tracer that is injected into the patient's bloodstream, allowing for the visualization of the liver, bile ducts, and gallbladder, provided the gallbladder has not been surgically removed. Commonly referred to as a HIDA scan, which stands for hepatobiliary iminodiacetic acid scan, this procedure is essential for assessing liver function, particularly in terms of bile production and excretion. It also evaluates the drainage system, including the bile ducts and gallbladder, for any signs of obstruction, inflammation, or other abnormalities. During the procedure, an intravenous catheter is placed to facilitate the injection of the radioactive tracer. A gamma camera is then used to capture multiple images as the tracer flows through the bloodstream, is absorbed by the liver, and subsequently travels through the biliary system. Continuous imaging allows for a comprehensive assessment of the movement of bile from the liver to the gallbladder and into the duodenum. Throughout the procedure, the patient is closely monitored, and upon completion, the physician reviews the obtained images to generate a detailed written report of the findings. This procedure is critical for diagnosing various hepatobiliary conditions and guiding further management.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The hepatobiliary system imaging procedure (CPT® Code 78226) is indicated for the evaluation of various conditions related to liver and gallbladder function. The following are the specific indications for performing this procedure:

  • Assessment of Liver Function - To evaluate the liver's ability to produce and excrete bile.
  • Investigation of Biliary Obstruction - To identify any blockages in the bile ducts that may impede the flow of bile.
  • Evaluation of Gallbladder Abnormalities - To assess the gallbladder for signs of inflammation, obstruction, or other pathological conditions.
  • Diagnosis of Hepatobiliary Disorders - To aid in the diagnosis of conditions such as cholecystitis, cholangitis, or biliary atresia.

2. Procedure

The hepatobiliary system imaging procedure involves several key steps that are crucial for obtaining accurate diagnostic images. The following outlines the procedural steps involved:

  • Step 1: Patient Preparation - The patient is prepared for the procedure, which may include fasting for a specified period prior to the test to ensure optimal imaging results.
  • Step 2: Intravenous Catheter Placement - An intravenous (IV) catheter is placed in the patient's arm to facilitate the administration of the radioactive tracer.
  • Step 3: Injection of Radioactive Tracer - A radioactive tracer is injected through the IV catheter. This tracer is specifically designed to be absorbed by the liver and subsequently excreted into the bile.
  • Step 4: Imaging Process - A gamma camera is positioned over the patient's abdomen. The camera captures multiple images as the radioactive tracer flows through the bloodstream, is taken up by the liver, and travels through the biliary system. Continuous imaging allows for real-time visualization of the bile's movement from the liver to the gallbladder and into the duodenum.
  • Step 5: Monitoring - Throughout the procedure, the patient is monitored for any adverse reactions or discomfort. The healthcare team ensures the patient's safety and comfort during the imaging process.
  • Step 6: Image Review and Reporting - After the imaging is complete, the physician reviews the obtained images to assess liver and gallbladder function. A detailed written report of the findings is generated for further evaluation and management.

3. Post-Procedure

After the completion of the hepatobiliary system imaging procedure, patients may be advised to resume normal activities unless otherwise instructed by their healthcare provider. There are typically no specific post-procedure care requirements, but patients should be monitored for any immediate reactions to the radioactive tracer. The physician will provide a written report detailing the findings from the imaging, which may be used to guide further diagnostic or therapeutic interventions based on the results. Patients may be informed about the importance of following up with their healthcare provider to discuss the results and any necessary next steps in their care.

Short Descr HEPATOBILIARY SYSTEM IMAGING
Medium Descr HEPATOBILIARY SYST IMAGING INCLUDING GALLBLADDER
Long Descr Hepatobiliary system imaging, including gallbladder when present;
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 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 Procedure or Service, Not Discounted when Multiple
ASC Payment Indicator Radiology service paid separately when provided integral to a surgical procedure on ASC list; payment based on OPPS relative payment weight.
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) I4B - Imaging/procedure - other
MUE 1
CCS Clinical Classification 209 - Radioisotope scan and function studies
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
GC This service has been performed in part by a resident under the direction of a teaching physician
MG The order for this service does not have applicable appropriate use criteria in the qualified clinical decision support mechanism consulted by the ordering professional
ME The order for this service adheres to appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
MH Unknown if ordering professional consulted a clinical decision support mechanism for this service, related information was not provided to the furnishing professional or provider
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
MF The order for this service does not adhere to the appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
QQ Ordering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing professional
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
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
GW Service not related to the hospice patient's terminal condition
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) 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).
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.
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.
AM Physician, team member 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
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GZ Item or service expected to be denied as not reasonable and necessary
LT Left side (used to identify procedures performed on the left side of the body)
MA Ordering professional is not required to consult a clinical decision support mechanism due to service being rendered to a patient with a suspected or confirmed emergency medical condition
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
MD Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of extreme and uncontrollable circumstances
Q1 Routine 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
RT Right side (used to identify procedures performed on the right side of the body)
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
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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2012-01-01 Added Added
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