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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group BW20 includes procedures performed to capture computerized tomography images of anatomical structures in the abdomen. These ICD-10-PCS codes are used for inpatient documentation when multiplanar digital images are developed from multiple external ionizing radiation exposures for diagnostic or treatment planning purposes. Accurate coding within the ICD-10-PCS BW20 group is essential for proper inpatient reimbursement, as it captures the imaging procedure performed and supports clinical documentation accuracy.

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Abdomen Computerized Tomography Procedure Overview

This procedure group includes computerized tomography scans of the abdomen using external ionizing radiation to produce multiplanar digital images. These procedures target the anatomical regions of the abdomen and surrounding structures within the anatomical regions body system. Accurate ICD-10-PCS coding for these imaging procedures ensures inpatient records reflect the imaging performed and supports appropriate inpatient reimbursement and clinical documentation integrity.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
W	Body System	Anatomical Regions
2	Operation	Computerized Tomography (CT Scan)
0	Body Part	Abdomen

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

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Abdomen Computerized Tomography Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
W	Body System	Anatomical Regions
2	Operation	Computerized Tomography (CT Scan)
0	Body Part	Abdomen

When to Use

Use a code from this group when a CT scan of the abdomen is performed and multiplanar digital images are generated from multiple external ionizing radiation exposures. These codes apply when the inpatient record documents computerized tomography as the imaging operation for the abdominal anatomical regions.

ICD-10-PCS Codes

7 rows

ICD-10-PCS Code	Description
BW2000Z	Computerized Tomography (CT Scan) of Abdomen using High Osmolar Contrast, Unenhanced and Enhanced
BW200ZZ	Computerized Tomography (CT Scan) of Abdomen using High Osmolar Contrast
BW2010Z	Computerized Tomography (CT Scan) of Abdomen using Low Osmolar Contrast, Unenhanced and Enhanced
BW201ZZ	Computerized Tomography (CT Scan) of Abdomen using Low Osmolar Contrast
BW20Y0Z	Computerized Tomography (CT Scan) of Abdomen using Other Contrast, Unenhanced and Enhanced
BW20YZZ	Computerized Tomography (CT Scan) of Abdomen using Other Contrast
BW20ZZZ	Computerized Tomography (CT Scan) of Abdomen

Typical Clinical Scenarios

An adult patient is admitted through the emergency department with sudden onset severe right upper quadrant abdominal pain, fever, and elevated white blood cell count suspicious for acute appendicitis or perforated viscus; the inpatient team orders an urgent CT of the abdomen with and without contrast to evaluate for inflammation, abscess, or free air and to guide surgical planning. Typical codes: BW2000Z, BW2010Z
An elderly inpatient with known colorectal cancer is scheduled for preoperative staging and treatment planning; the oncology service requests a contrast-enhanced abdominal CT with multiplanar reformats to assess tumor extent, lymphadenopathy, and possible hepatic metastases prior to elective resection. Typical codes: BW200ZZ, BW201ZZ
A hospitalized patient develops postoperative fever and suspected intra-abdominal abscess several days after abdominal surgery; the clinical team obtains an urgent CT abdomen both with and without contrast to detect drainable collections and to direct interventional radiology for percutaneous drainage. Typical codes: BW20Y0Z, BW20YZZ

Related Codes

BW21-ABDOMEN-AND-PELVIS-CT

ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview

BW24-CHEST-AND-ABDOMEN-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Chest And Abdomen: Procedure Code Group Overview

BW25-CHEST-ABDOMEN-AND-PELVIS-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Chest Abdomen And Pelvis: Procedure Code Group Overview

BW28-HEAD-COMPUTERIZED-TOMOGRAPHY

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

BW29-HEAD-AND-NECK-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Head And Neck: Procedure Code Group Overview

BW2F-NECK-COMPUTERIZED-TOMOGRAPHY

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

BW2G-PELVIC-REGION-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Pelvic Region: 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

7 rows

ICD-10-PCS Code	Description
BW2000Z	Computerized Tomography (CT Scan) of Abdomen using High Osmolar Contrast, Unenhanced and Enhanced
BW200ZZ	Computerized Tomography (CT Scan) of Abdomen using High Osmolar Contrast
BW2010Z	Computerized Tomography (CT Scan) of Abdomen using Low Osmolar Contrast, Unenhanced and Enhanced
BW201ZZ	Computerized Tomography (CT Scan) of Abdomen using Low Osmolar Contrast
BW20Y0Z	Computerized Tomography (CT Scan) of Abdomen using Other Contrast, Unenhanced and Enhanced
BW20YZZ	Computerized Tomography (CT Scan) of Abdomen using Other Contrast
BW20ZZZ	Computerized Tomography (CT Scan) of Abdomen

Typical Clinical Scenarios

An adult patient is admitted through the emergency department with sudden onset severe right upper quadrant abdominal pain, fever, and elevated white blood cell count suspicious for acute appendicitis or perforated viscus; the inpatient team orders an urgent CT of the abdomen with and without contrast to evaluate for inflammation, abscess, or free air and to guide surgical planning. Typical codes: BW2000Z, BW2010Z
An elderly inpatient with known colorectal cancer is scheduled for preoperative staging and treatment planning; the oncology service requests a contrast-enhanced abdominal CT with multiplanar reformats to assess tumor extent, lymphadenopathy, and possible hepatic metastases prior to elective resection. Typical codes: BW200ZZ, BW201ZZ
A hospitalized patient develops postoperative fever and suspected intra-abdominal abscess several days after abdominal surgery; the clinical team obtains an urgent CT abdomen both with and without contrast to detect drainable collections and to direct interventional radiology for percutaneous drainage. Typical codes: BW20Y0Z, BW20YZZ

Related Codes

BW21-ABDOMEN-AND-PELVIS-CT

ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview

BW24-CHEST-AND-ABDOMEN-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Chest And Abdomen: Procedure Code Group Overview

BW25-CHEST-ABDOMEN-AND-PELVIS-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Chest Abdomen And Pelvis: Procedure Code Group Overview

BW28-HEAD-COMPUTERIZED-TOMOGRAPHY

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

BW29-HEAD-AND-NECK-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Head And Neck: Procedure Code Group Overview

BW2F-NECK-COMPUTERIZED-TOMOGRAPHY

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

BW2G-PELVIC-REGION-COMPUTERIZED-TOMOGRAPHY

ICD-10-PCS Code For Pelvic Region: 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 Abdomen: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Abdomen: Procedure Code Group Overview policy alerts

Abdomen Computerized Tomography Procedure Overview

Code Attributes

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

Sign up for ICD-10-PCS Code For Abdomen: Procedure Code Group Overview policy alerts

Abdomen Computerized Tomography Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does ICD-10-PCS group BW20 represent?

What types of contrast are specified within the BW20 code group?

How should documentation support use of a BW20 code for inpatient records?

What are examples of specific ICD-10-PCS codes in the BW20 group?

For what purpose are BW20 codes used in inpatient settings?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does ICD-10-PCS group BW20 represent?

What types of contrast are specified within the BW20 code group?

How should documentation support use of a BW20 code for inpatient records?

What are examples of specific ICD-10-PCS codes in the BW20 group?

For what purpose are BW20 codes used in inpatient settings?

References