ICD-10-PCS Code For Whole Body: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CW1N includes procedures performed to introduce radioactive materials and capture single plane nuclear medicine images of the whole body. These ICD-10-PCS codes are used for inpatient documentation when a planar nuclear medicine imaging study of the entire body is performed after administration of radionuclides. Accurate coding within the ICD-10-PCS CW1N group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Whole Body Planar Nuclear Medicine Imaging Procedure Overview

This group includes planar nuclear medicine imaging procedures that capture radioactive emissions from the whole body to develop single plane images. These procedures target the anatomical regions body system and involve introduction of radioactive material followed by imaging of emitted radiation. Accurate ICD-10-PCS coding ensures inpatient records reflect the imaging performed and supports appropriate reimbursement and case mix assignment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
1	Operation	Planar Nuclear Medicine Imaging
N	Body Part	Whole Body

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ICD-10-PCS Code For Whole Body: Procedure Code Group Overview

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Whole Body Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
1	Operation	Planar Nuclear Medicine Imaging
N	Body Part	Whole Body

When to Use

Use a code from this group when a whole body planar nuclear medicine scan is performed following administration of radioactive material to obtain single plane images. These codes apply when the procedure is documented in the inpatient record and the imaging captures radioactive emissions from the entire body.

ICD-10-PCS Codes

7 rows

ICD-10-PCS Code	Description
CW1N1ZZ	Planar Nuclear Medicine Imaging of Whole Body using Technetium 99m (Tc-99m)
CW1NDZZ	Planar Nuclear Medicine Imaging of Whole Body using Indium 111 (In-111)
CW1NFZZ	Planar Nuclear Medicine Imaging of Whole Body using Iodine 123 (I-123)
CW1NGZZ	Planar Nuclear Medicine Imaging of Whole Body using Iodine 131 (I-131)
CW1NLZZ	Planar Nuclear Medicine Imaging of Whole Body using Gallium 67 (Ga-67)
CW1NSZZ	Planar Nuclear Medicine Imaging of Whole Body using Thallium 201 (Tl-201)
CW1NYZZ	Planar Nuclear Medicine Imaging of Whole Body using Other Radionuclide

Typical Clinical Scenarios

An elderly patient admitted for staging of newly diagnosed thyroid carcinoma with concern for metastatic disease presents for whole body planar nuclear imaging after administration of Iodine 131 to detect distant iodine-avid metastases. The inpatient team orders a whole body planar nuclear medicine scan to evaluate extent of disease and guide further inpatient management decisions. The procedure captures single plane emissions across the whole body following the specified radionuclide administration. Typical codes: CW1NGZZ
A middle-aged patient with recurrent fever of unknown origin and suspected occult infection is admitted; the nuclear medicine service performs a whole body planar scan after injection of Indium 111–labeled white blood cells to localize possible sites of infection or abscess. The inpatient whole body planar imaging study is used to identify areas of increased radiotracer uptake that may explain the clinical deterioration and direct further inpatient interventions. Typical codes: CW1NDZZ
A hospitalized patient with history of treated lymphoma and new bone pain undergoes a whole body planar nuclear medicine scan using Technetium 99m to assess for multifocal osseous involvement versus treatment-related changes. The whole body planar imaging after Tc-99m administration is performed during the inpatient stay to determine extent of skeletal disease and influence acute management decisions. Typical codes: CW1N1ZZ

Related Codes

CW10-ABDOMEN-PLANAR-IMAGING

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

CW11-ABDOMEN-AND-PELVIS-PLANAR-IMAGING

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

CW13-CHEST-PLANAR-IMAGING

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

CW14-CHEST-AND-ABDOMEN-PLANAR

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

CW16-CHEST-AND-NECK-PLANAR-IMAGING

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

CW1B-HEAD-AND-NECK-PLANAR-IMAGING

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

CW1D-LOWER-EXTREMITY-PLANAR-IMAGING

ICD-10-PCS Code For Lower Extremity: Procedure Code Group Overview

CW1J-PELVIC-REGION-PLANAR-IMAGING

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

CW1M-UPPER-EXTREMITY-PLANAR-IMAGING

ICD-10-PCS Code For Upper Extremity: Procedure Code Group Overview

CW1Y-ANATOMICAL-REGIONS-PLANAR-IMAGING

ICD-10-PCS Code For Anatomical Regions: Procedure Code Group Overview

Showing 1–10 of 11

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
CW1N1ZZ	Planar Nuclear Medicine Imaging of Whole Body using Technetium 99m (Tc-99m)
CW1NDZZ	Planar Nuclear Medicine Imaging of Whole Body using Indium 111 (In-111)
CW1NFZZ	Planar Nuclear Medicine Imaging of Whole Body using Iodine 123 (I-123)
CW1NGZZ	Planar Nuclear Medicine Imaging of Whole Body using Iodine 131 (I-131)
CW1NLZZ	Planar Nuclear Medicine Imaging of Whole Body using Gallium 67 (Ga-67)
CW1NSZZ	Planar Nuclear Medicine Imaging of Whole Body using Thallium 201 (Tl-201)
CW1NYZZ	Planar Nuclear Medicine Imaging of Whole Body using Other Radionuclide

Typical Clinical Scenarios

An elderly patient admitted for staging of newly diagnosed thyroid carcinoma with concern for metastatic disease presents for whole body planar nuclear imaging after administration of Iodine 131 to detect distant iodine-avid metastases. The inpatient team orders a whole body planar nuclear medicine scan to evaluate extent of disease and guide further inpatient management decisions. The procedure captures single plane emissions across the whole body following the specified radionuclide administration. Typical codes: CW1NGZZ
A middle-aged patient with recurrent fever of unknown origin and suspected occult infection is admitted; the nuclear medicine service performs a whole body planar scan after injection of Indium 111–labeled white blood cells to localize possible sites of infection or abscess. The inpatient whole body planar imaging study is used to identify areas of increased radiotracer uptake that may explain the clinical deterioration and direct further inpatient interventions. Typical codes: CW1NDZZ
A hospitalized patient with history of treated lymphoma and new bone pain undergoes a whole body planar nuclear medicine scan using Technetium 99m to assess for multifocal osseous involvement versus treatment-related changes. The whole body planar imaging after Tc-99m administration is performed during the inpatient stay to determine extent of skeletal disease and influence acute management decisions. Typical codes: CW1N1ZZ

Related Codes

CW10-ABDOMEN-PLANAR-IMAGING

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

CW11-ABDOMEN-AND-PELVIS-PLANAR-IMAGING

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

CW13-CHEST-PLANAR-IMAGING

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

CW14-CHEST-AND-ABDOMEN-PLANAR

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

CW16-CHEST-AND-NECK-PLANAR-IMAGING

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

CW1B-HEAD-AND-NECK-PLANAR-IMAGING

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

CW1D-LOWER-EXTREMITY-PLANAR-IMAGING

ICD-10-PCS Code For Lower Extremity: Procedure Code Group Overview

CW1J-PELVIC-REGION-PLANAR-IMAGING

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

CW1M-UPPER-EXTREMITY-PLANAR-IMAGING

ICD-10-PCS Code For Upper Extremity: Procedure Code Group Overview

CW1Y-ANATOMICAL-REGIONS-PLANAR-IMAGING

ICD-10-PCS Code For Anatomical Regions: Procedure Code Group Overview

Showing 1–10 of 11

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 Whole Body: Procedure Code Group Overview

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

Whole Body Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

ICD-10-PCS Code For Whole Body: Procedure Code Group Overview

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

Whole Body Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the CW1N ICD-10-PCS code group?

How does CW1N coding support inpatient documentation?

What are the code attributes for CW1N procedures?

Which specific ICD-10-PCS codes denote different radionuclides for whole body imaging?

Are there related DRGs listed for the CW1N code group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the CW1N ICD-10-PCS code group?

How does CW1N coding support inpatient documentation?

What are the code attributes for CW1N procedures?

Which specific ICD-10-PCS codes denote different radionuclides for whole body imaging?

Are there related DRGs listed for the CW1N code group?

References