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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group BT33 includes procedures performed to image anatomical structures in the kidneys, bilateral. These ICD-10-PCS codes are used for inpatient documentation when magnetic resonance imaging of both kidneys is performed to evaluate renal anatomy or pathology. Accurate coding within the ICD-10-PCS BT33 group is essential for proper inpatient reimbursement, as it captures the diagnostic imaging procedure performed and supports clinical documentation accuracy.

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Kidneys Magnetic Resonance Imaging Procedure Overview

This procedure group includes magnetic resonance imaging examinations of the bilateral kidneys within the urinary system. Procedures involve computer reformatted digital displays of multiplanar images created from captured radiofrequency signals emitted by nuclei in the kidneys when excited within a magnetic field. Accurate ICD-10-PCS coding of these imaging procedures ensures inpatient records reflect the diagnostic study performed and supports proper case mix and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
T	Body System	Urinary System
3	Operation	Magnetic Resonance Imaging (MRI)
3	Body Part	Kidneys, Bilateral

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

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Kidneys Magnetic Resonance Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
T	Body System	Urinary System
3	Operation	Magnetic Resonance Imaging (MRI)
3	Body Part	Kidneys, Bilateral

When to Use

Use a code from this group when an inpatient undergoes magnetic resonance imaging specifically of both kidneys for diagnostic evaluation. Codes in this group apply when the imaging procedure produces reformatted digital multiplanar displays derived from captured radiofrequency signals within a magnetic field.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
BT33Y0Z	Magnetic Resonance Imaging (MRI) of Bilateral Kidneys using Other Contrast, Unenhanced and Enhanced
BT33YZZ	Magnetic Resonance Imaging (MRI) of Bilateral Kidneys using Other Contrast
BT33ZZZ	Magnetic Resonance Imaging (MRI) of Bilateral Kidneys

Typical Clinical Scenarios

An adult patient is admitted with acute flank pain and rising serum creatinine; ultrasound is inconclusive for obstructing urolithiasis. The inpatient team orders a bilateral renal magnetic resonance imaging study with and without administration of a non-standard contrast agent to evaluate for obstruction, renal perfusion, and alternative causes of acute kidney injury. The examination produces reformatted multiplanar images of both kidneys to assist diagnostic and management decisions. Typical codes: BT33Y0Z
A middle-aged patient with known bilateral renal masses is admitted for planned inpatient preoperative staging and characterization of lesions. A magnetic resonance imaging examination of both kidneys is performed using supplemental contrast to obtain multiplanar reformatted images that delineate tumor extent and relationship to the renal hilum prior to scheduled surgery. The study is performed as a planned diagnostic imaging procedure during the hospitalization. Typical codes: BT33Y0Z
A patient hospitalized for worsening chronic kidney disease undergoes a non-contrast MRI of both kidneys because prior contrast exposure was contraindicated and clinicians require high-resolution reformatted images to monitor progression of bilateral parenchymal disease. The inpatient MRI provides multiplanar evaluation of renal size, cortical thickness, and scarring without use of enhancement. Typical codes: BT33ZZZ

Related Codes

BT30-BLADDER-MAGNETIC-RESONANCE-IMAGING

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

BT31-KIDNEY-RIGHT-MAGNETIC-RESONANCE-IMAGING

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

BT32-KIDNEY-LEFT-MAGNETIC-RESONANCE-IMAGING

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

BT39-KIDNEY-TRANSPLANT-MAGNETIC-RESONANCE-IMAGING

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.

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When to Use

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
BT33Y0Z	Magnetic Resonance Imaging (MRI) of Bilateral Kidneys using Other Contrast, Unenhanced and Enhanced
BT33YZZ	Magnetic Resonance Imaging (MRI) of Bilateral Kidneys using Other Contrast
BT33ZZZ	Magnetic Resonance Imaging (MRI) of Bilateral Kidneys

Typical Clinical Scenarios

An adult patient is admitted with acute flank pain and rising serum creatinine; ultrasound is inconclusive for obstructing urolithiasis. The inpatient team orders a bilateral renal magnetic resonance imaging study with and without administration of a non-standard contrast agent to evaluate for obstruction, renal perfusion, and alternative causes of acute kidney injury. The examination produces reformatted multiplanar images of both kidneys to assist diagnostic and management decisions. Typical codes: BT33Y0Z
A middle-aged patient with known bilateral renal masses is admitted for planned inpatient preoperative staging and characterization of lesions. A magnetic resonance imaging examination of both kidneys is performed using supplemental contrast to obtain multiplanar reformatted images that delineate tumor extent and relationship to the renal hilum prior to scheduled surgery. The study is performed as a planned diagnostic imaging procedure during the hospitalization. Typical codes: BT33Y0Z
A patient hospitalized for worsening chronic kidney disease undergoes a non-contrast MRI of both kidneys because prior contrast exposure was contraindicated and clinicians require high-resolution reformatted images to monitor progression of bilateral parenchymal disease. The inpatient MRI provides multiplanar evaluation of renal size, cortical thickness, and scarring without use of enhancement. Typical codes: BT33ZZZ

Related Codes

BT30-BLADDER-MAGNETIC-RESONANCE-IMAGING

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

BT31-KIDNEY-RIGHT-MAGNETIC-RESONANCE-IMAGING

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

BT32-KIDNEY-LEFT-MAGNETIC-RESONANCE-IMAGING

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

BT39-KIDNEY-TRANSPLANT-MAGNETIC-RESONANCE-IMAGING

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, Bilateral: Procedure Code Group Overview

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

Kidneys Magnetic Resonance Imaging Procedure Overview

Code Attributes

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

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

Kidneys Magnetic Resonance Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the BT33 ICD-10-PCS code group?

Which ICD-10-PCS codes are listed in the BT33 group?

What is the primary purpose of coding procedures in the BT33 group?

Under which ICD-10-PCS section and body system do BT33 codes fall?

Are there related DRGs available for the BT33 code group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the BT33 ICD-10-PCS code group?

Which ICD-10-PCS codes are listed in the BT33 group?

What is the primary purpose of coding procedures in the BT33 group?

Under which ICD-10-PCS section and body system do BT33 codes fall?

Are there related DRGs available for the BT33 code group?

References