ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group BT4J includes procedures performed to image anatomy or flow information in the kidneys and bladder. These ICD-10-PCS codes are used for inpatient documentation when real-time ultrasonography of the urinary system is performed for diagnostic evaluation or monitoring. Accurate coding within the ICD-10-PCS BT4J group is essential for proper inpatient reimbursement, as it captures the imaging procedure performed and supports clinical documentation accuracy.

Customize your policy alerts

Sign up for ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview policy alerts

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Kidneys And Bladder Ultrasonography Procedure Overview

This procedure group includes real-time ultrasonography imaging of the kidneys and bladder within the urinary system. Procedures capture reflected high-frequency sound waves to generate images of anatomy or flow information for diagnostic and monitoring purposes. Accurate ICD-10-PCS coding of these imaging procedures ensures inpatient records reflect the services performed and supports appropriate hospital reimbursement and case assignment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
T	Body System	Urinary System
4	Operation	Ultrasonography
J	Body Part	Kidneys and Bladder

Explore openpayer tools

View all tools

ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview

Customize your policy alerts

Sign up for ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview policy alerts

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Kidneys And Bladder Ultrasonography Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
T	Body System	Urinary System
4	Operation	Ultrasonography
J	Body Part	Kidneys and Bladder

When to Use

Use a code from this group when inpatient real-time ultrasonography is performed specifically on the kidneys and bladder for diagnostic or monitoring purposes. Select the code that corresponds to the documented imaging procedure and laterality or specific technique as recorded in the medical record.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
BT4JZZZ	Ultrasonography of Kidneys and Bladder

Typical Clinical Scenarios

An adult patient is admitted from the emergency department with acute flank pain, hematuria, and suspected obstructing renal calculus. Bedside real-time ultrasonography of the kidneys and bladder is performed to evaluate for hydronephrosis and assess bladder volume and any postvoid residual that may contribute to obstruction. The imaging guides urgent clinical management while inpatient and helps determine need for urologic intervention. Typical codes: BT4JZZZ
A hospitalized elderly patient with urinary retention and recurrent urinary tract infections undergoes a planned inpatient bedside bladder and renal ultrasound to measure bladder residual, evaluate for upper tract dilation, and identify structural abnormalities contributing to retention. The test is ordered as part of a non-emergent inpatient evaluation to guide conservative management and discharge planning. Typical codes: BT4JZZZ
A patient admitted for sepsis secondary to complicated pyelonephritis has worsening renal function and persistent fever despite antibiotics; repeat real-time ultrasonography of the kidneys and bladder is performed to assess for obstructing collections, abscess, or hydronephrosis that may require drainage. The imaging is used to detect complications of the urinary infection while the patient remains inpatient. Typical codes: BT4JZZZ

Related Codes

BT40-BLADDER-ULTRASONOGRAPHY

ICD-10-PCS Code For Bladder: Procedure Code Group Overview

BT41-RIGHT-KIDNEY-ULTRASONOGRAPHY

ICD-10-PCS Code For Right Kidney: Procedure Code Group Overview

BT42-LEFT-KIDNEY-ULTRASONOGRAPHY

ICD-10-PCS Code For Left Kidney: Procedure Code Group Overview

BT43-KIDNEYS-ULTRASONOGRAPHY

ICD-10-PCS Code For Kidneys: Procedure Code Group Overview

BT45-URETHRA-ULTRASONOGRAPHY

ICD-10-PCS Code For Urethra: Procedure Code Group Overview

BT46-RIGHT-URETER-ULTRASONOGRAPHY

ICD-10-PCS Code For Right Ureter: Procedure Code Group Overview

BT47-LEFT-URETER-ULTRASONOGRAPHY

ICD-10-PCS Code For Left Ureter: Procedure Code Group Overview

BT48-URETERS-ULTRASONOGRAPHY

ICD-10-PCS Code For Ureters: Procedure Code Group Overview

BT49-KIDNEY-TRANSPLANT-ULTRASONOGRAPHY

ICD-10-PCS Code For Kidney Transplant: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Explore openpayer tools

View all tools

When to Use

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
BT4JZZZ	Ultrasonography of Kidneys and Bladder

Typical Clinical Scenarios

An adult patient is admitted from the emergency department with acute flank pain, hematuria, and suspected obstructing renal calculus. Bedside real-time ultrasonography of the kidneys and bladder is performed to evaluate for hydronephrosis and assess bladder volume and any postvoid residual that may contribute to obstruction. The imaging guides urgent clinical management while inpatient and helps determine need for urologic intervention. Typical codes: BT4JZZZ
A hospitalized elderly patient with urinary retention and recurrent urinary tract infections undergoes a planned inpatient bedside bladder and renal ultrasound to measure bladder residual, evaluate for upper tract dilation, and identify structural abnormalities contributing to retention. The test is ordered as part of a non-emergent inpatient evaluation to guide conservative management and discharge planning. Typical codes: BT4JZZZ
A patient admitted for sepsis secondary to complicated pyelonephritis has worsening renal function and persistent fever despite antibiotics; repeat real-time ultrasonography of the kidneys and bladder is performed to assess for obstructing collections, abscess, or hydronephrosis that may require drainage. The imaging is used to detect complications of the urinary infection while the patient remains inpatient. Typical codes: BT4JZZZ

Related Codes

BT40-BLADDER-ULTRASONOGRAPHY

ICD-10-PCS Code For Bladder: Procedure Code Group Overview

BT41-RIGHT-KIDNEY-ULTRASONOGRAPHY

ICD-10-PCS Code For Right Kidney: Procedure Code Group Overview

BT42-LEFT-KIDNEY-ULTRASONOGRAPHY

ICD-10-PCS Code For Left Kidney: Procedure Code Group Overview

BT43-KIDNEYS-ULTRASONOGRAPHY

ICD-10-PCS Code For Kidneys: Procedure Code Group Overview

BT45-URETHRA-ULTRASONOGRAPHY

ICD-10-PCS Code For Urethra: Procedure Code Group Overview

BT46-RIGHT-URETER-ULTRASONOGRAPHY

ICD-10-PCS Code For Right Ureter: Procedure Code Group Overview

BT47-LEFT-URETER-ULTRASONOGRAPHY

ICD-10-PCS Code For Left Ureter: Procedure Code Group Overview

BT48-URETERS-ULTRASONOGRAPHY

ICD-10-PCS Code For Ureters: Procedure Code Group Overview

BT49-KIDNEY-TRANSPLANT-ULTRASONOGRAPHY

ICD-10-PCS Code For Kidney Transplant: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview policy alerts

Kidneys And Bladder Ultrasonography Procedure Overview

Code Attributes

ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Kidneys And Bladder: Procedure Code Group Overview policy alerts

Kidneys And Bladder Ultrasonography Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the Kidneys and Bladder ultrasonography group?

Which ICD-10-PCS code represents ultrasonography of the kidneys and bladder?

In which ICD-10-PCS section and body system is this procedure group classified?

Why is accurate coding within the BT4J group important for hospitals?

Are there any related DRGs listed for the BT4J group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the Kidneys and Bladder ultrasonography group?

Which ICD-10-PCS code represents ultrasonography of the kidneys and bladder?

In which ICD-10-PCS section and body system is this procedure group classified?

Why is accurate coding within the BT4J group important for hospitals?

Are there any related DRGs listed for the BT4J group?

References