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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CW7Y includes procedures performed to administer unsealed radioactive therapeutic agents systemically to multiple anatomical regions. These ICD-10-PCS codes are used for inpatient documentation when patients receive therapeutic systemic nuclear medicine that treats multiple anatomical regions of the body. Accurate coding within the ICD-10-PCS CW7Y group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Anatomical Regions Systemic Nuclear Medicine Therapy Procedure Overview

This procedure group includes systemic nuclear medicine therapy that introduces unsealed radioactive materials into multiple anatomical regions of the body for therapeutic purposes. The procedures target anatomical regions across the body and are performed by administering therapeutic radionuclides that circulate systemically. Accurate ICD-10-PCS coding of these systemic therapies is important for reflecting the treatment delivered to multiple regions and for appropriate inpatient reimbursement and clinical documentation.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
7	Operation	Systemic Nuclear Medicine Therapy
Y	Body Part	Anatomical Regions, Multiple

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

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Anatomical Regions Systemic Nuclear Medicine Therapy Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
7	Operation	Systemic Nuclear Medicine Therapy
Y	Body Part	Anatomical Regions, Multiple

When to Use

Use codes from this group when a therapeutic radionuclide is administered systemically and is intended to treat multiple anatomical regions of the body. Do not use these codes for localized radionuclide administrations limited to a single anatomical site.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
CW7YYZZ	Systemic Nuclear Medicine Therapy of Multiple Anatomical Regions using Other Radionuclide

Typical Clinical Scenarios

An elderly patient with widely metastatic differentiated thyroid carcinoma presents for planned inpatient administration of a systemic therapeutic radionuclide after thyroidectomy and elevated thyroglobulin levels; inpatient admission is for isolation precautions and monitoring for hematologic effects following high-activity systemic radionuclide therapy that will target multiple anatomical regions throughout the body. Typical codes: CW7YYZZ
A middle-aged patient with radioiodine-refractory, metastatic neuroendocrine tumor admitted electively to receive systemic radionuclide therapy as part of multimodal inpatient oncologic management, where the unsealed therapeutic agent circulates and treats tumor burden in multiple anatomical regions; inpatient stay allows for infusion, observation, and symptomatic management of acute treatment-related side effects. Typical codes: CW7YYZZ
A hospitalized patient with diffuse, treatment-resistant bone metastases experiencing worsening pain despite prior therapies undergoes inpatient systemic administration of an unsealed radionuclide to provide palliative relief across multiple anatomical regions; the procedure is performed during the admission to manage pain and monitor for cytopenias and other complications. Typical codes: CW7YYZZ

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

CW73-CHEST-SYSTEMIC-NUCLEAR-MEDICINE-THERAPY

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

CW7G-THYROID-SYSTEMIC-THERAPY

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

CW7N-WHOLE-BODY-SYSTEMIC-THERAPY

ICD-10-PCS Code For Whole Body: 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

1 rows

ICD-10-PCS Code	Description
CW7YYZZ	Systemic Nuclear Medicine Therapy of Multiple Anatomical Regions using Other Radionuclide

Typical Clinical Scenarios

An elderly patient with widely metastatic differentiated thyroid carcinoma presents for planned inpatient administration of a systemic therapeutic radionuclide after thyroidectomy and elevated thyroglobulin levels; inpatient admission is for isolation precautions and monitoring for hematologic effects following high-activity systemic radionuclide therapy that will target multiple anatomical regions throughout the body. Typical codes: CW7YYZZ
A middle-aged patient with radioiodine-refractory, metastatic neuroendocrine tumor admitted electively to receive systemic radionuclide therapy as part of multimodal inpatient oncologic management, where the unsealed therapeutic agent circulates and treats tumor burden in multiple anatomical regions; inpatient stay allows for infusion, observation, and symptomatic management of acute treatment-related side effects. Typical codes: CW7YYZZ
A hospitalized patient with diffuse, treatment-resistant bone metastases experiencing worsening pain despite prior therapies undergoes inpatient systemic administration of an unsealed radionuclide to provide palliative relief across multiple anatomical regions; the procedure is performed during the admission to manage pain and monitor for cytopenias and other complications. Typical codes: CW7YYZZ

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

CW73-CHEST-SYSTEMIC-NUCLEAR-MEDICINE-THERAPY

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

CW7G-THYROID-SYSTEMIC-THERAPY

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

CW7N-WHOLE-BODY-SYSTEMIC-THERAPY

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

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Anatomical Regions Systemic Nuclear Medicine Therapy Procedure Overview

Code Attributes

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

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Anatomical Regions Systemic Nuclear Medicine Therapy Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

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

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

Anatomical Regions Systemic Nuclear Medicine Therapy Procedure Overview

Code Attributes

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

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

Anatomical Regions Systemic Nuclear Medicine Therapy Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code identifies systemic nuclear medicine therapy for multiple anatomical regions?

What does the ICD-10-PCS section and operation indicate for these procedures?

When should `CW7YYZZ` be used in inpatient documentation?

What body system and body part values apply to this code group?

Why is accurate coding within the `CW7Y` group important for hospitals and payers?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code identifies systemic nuclear medicine therapy for multiple anatomical regions?

What does the ICD-10-PCS section and operation indicate for these procedures?

When should `CW7YYZZ` be used in inpatient documentation?

What body system and body part values apply to this code group?

Why is accurate coding within the `CW7Y` group important for hospitals and payers?

References