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Official Description

Kidney imaging morphology;

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 78700 involves kidney imaging morphology, which focuses on assessing the size, shape, and structural characteristics of the kidneys, as well as their functional capabilities. This assessment is conducted using scintigraphy, a diagnostic imaging technique that employs a radiolabeled isotope tracer to visualize the kidneys. The kidneys play a crucial role in filtering waste products from the bloodstream, maintaining chemical balance, and producing essential hormones such as erythropoietin, which is vital for red blood cell production; renin, which helps regulate blood pressure; and calcitriol, which is important for calcium absorption in the bones. The imaging procedure is particularly useful for evaluating various renal conditions, including renal blood flow issues, renovascular hypertension, the presence of renal cysts, tumors, abscesses, and other kidney diseases. Additionally, it serves as a monitoring tool for kidney transplants. During the procedure, an intravenous line is established to facilitate the injection of the radiolabeled isotope tracer directly into the patient's circulatory system. The patient is then positioned on an imaging table, where a gamma camera is focused on the kidneys to capture images. Scanning occurs at predetermined intervals, and the radioactive energy emitted from the kidneys is converted into detailed images for analysis. It is important to note that CPT® Code 78700 is specifically utilized when the focus is solely on the morphology of the kidneys, whereas CPT® Code 78701 is applicable when both morphology and vascular flow are evaluated. Following the imaging, the physician interprets the results and generates a comprehensive written report detailing the findings of the study.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 78700 is indicated for a variety of renal conditions and assessments. The following are the specific indications for performing kidney imaging morphology:

  • Renal Blood Flow Evaluation - This procedure is utilized to assess the blood flow to the kidneys, which is essential for understanding renal function and diagnosing potential vascular issues.
  • Renovascular Hypertension - It is indicated for evaluating hypertension that may be caused by renal artery stenosis or other vascular abnormalities affecting the kidneys.
  • Renal Cysts - The imaging can help in identifying and characterizing renal cysts, which may require further evaluation or monitoring.
  • Tumors - This procedure is used to detect and assess renal tumors, providing critical information regarding their size and morphology.
  • Abscesses - It aids in the identification of renal abscesses, which are localized infections that can affect kidney function.
  • Kidney Disease - The imaging is indicated for the evaluation of various kidney diseases, helping to determine the extent of damage or dysfunction.
  • Monitoring Kidney Transplants - This procedure is also employed to monitor the health and function of transplanted kidneys, ensuring they are functioning properly post-surgery.

2. Procedure

The procedure for kidney imaging morphology using CPT® Code 78700 involves several key steps that ensure accurate assessment of the kidneys. The following outlines the procedural steps:

  • Establishment of Intravenous Access - An intravenous line is established in the patient's arm or hand to facilitate the administration of the radiolabeled isotope tracer. This step is crucial as it allows for direct access to the circulatory system, ensuring that the tracer is delivered effectively.
  • Injection of Radiolabeled Isotope Tracer - Once the intravenous line is in place, the radiolabeled isotope tracer is injected into the patient's bloodstream. This tracer is essential for the imaging process, as it emits radioactive energy that will be captured during the scanning phase.
  • Patient Positioning - After the injection, the patient is positioned on the imaging table. Proper positioning is important to ensure that the gamma camera can accurately focus on the kidneys for optimal imaging results.
  • Scanning with Gamma Camera - The gamma camera is then focused on the kidneys, and scanning is performed at specific intervals. During this phase, the camera detects the radioactive energy emitted from the tracer, which is indicative of the kidney's morphology and function.
  • Image Conversion - The radioactive energy captured by the gamma camera is converted into detailed images of the kidneys. These images provide valuable information regarding the size, shape, and structural characteristics of the kidneys.

3. Post-Procedure

After the completion of the kidney imaging morphology procedure, several post-procedure considerations are important for patient care. The patient may be monitored briefly to ensure there are no immediate adverse reactions to the radiolabeled isotope tracer. It is generally recommended that patients hydrate adequately following the procedure to help flush the tracer from their system. The physician will interpret the images obtained during the procedure and generate a written report detailing the findings. This report will include information on the morphology of the kidneys and any abnormalities detected during the imaging process. Patients may be advised to follow up with their healthcare provider to discuss the results and any necessary further evaluations or treatments based on the findings.

Short Descr KIDNEY IMAGING MORPHOL
Medium Descr KIDNEY IMAGING MORPHOLOGY
Long Descr Kidney imaging morphology;
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) I1E - Standard imaging - nuclear medicine
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.
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
ME The order for this service adheres to appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
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
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
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
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
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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Notes
2011-01-01 Changed Short description changed.
2010-01-01 Changed Code description changed.
2007-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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