ICD-10-PCS Code For Skin Subcutaneous Tissue And Breast: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CH1Y includes procedures performed to image skin, subcutaneous tissue, and breast using planar nuclear medicine techniques. These ICD-10-PCS codes are used for inpatient documentation when single-plane nuclear medicine imaging with introduction of radioactive materials is performed to evaluate lesions, perfusion, or functional activity in the skin, subcutaneous tissue, or breast. Accurate coding within the ICD-10-PCS CH1Y group is essential for proper inpatient reimbursement, as it captures the specific imaging procedure performed and supports clinical documentation accuracy.

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Skin, Subcutaneous Tissue And Breast Planar Nuclear Medicine Imaging Procedure Overview

This group includes planar nuclear medicine imaging procedures targeting the skin, subcutaneous tissue, and breast that capture single-plane images from radioactive emissions. These procedures introduce radioactive materials and record planar image data of the specified body parts to evaluate lesions, perfusion, or functional activity. Accurate coding is important for inpatient reimbursement because it documents the imaging modality and anatomical focus, supporting correct case mix assignment and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
H	Body System	Skin, Subcutaneous Tissue and Breast
1	Operation	Planar Nuclear Medicine Imaging
Y	Body Part	Skin, Subcutaneous Tissue and Breast

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ICD-10-PCS Code For Skin Subcutaneous Tissue And Breast: Procedure Code Group Overview

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Skin, Subcutaneous Tissue And Breast Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
H	Body System	Skin, Subcutaneous Tissue and Breast
1	Operation	Planar Nuclear Medicine Imaging
Y	Body Part	Skin, Subcutaneous Tissue and Breast

When to Use

Use a code from this group when radioactive materials are introduced for single-plane nuclear medicine imaging of the skin, subcutaneous tissue, or breast during an inpatient encounter. These codes apply when the clinical goal is to capture planar images to assess lesions, perfusion, or functional activity in those body parts.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
CH1YYZZ	Planar Nuclear Medicine Imaging of Skin, Subcutaneous Tissue and Breast using Other Radionuclide

Typical Clinical Scenarios

An elderly inpatient with a history of breast-conserving surgery is admitted for evaluation of a new palpable mass and unexplained focal skin changes over the lumpectomy site; mammography and ultrasound are inconclusive, and there is concern for localized recurrence or post‑surgical scar versus active tumor. A planar nuclear medicine skin/breast study with introduction of a radionuclide is ordered to assess functional activity and tracer uptake in the breast and overlying skin to help differentiate recurrent tumor from scar or inflammation. Typical codes: CH1YYZZ.
A middle-aged patient presents to the hospital with acute, rapidly spreading cellulitis of the chest wall and breast with unclear extent of infected subcutaneous tissue; clinical exam and ultrasound cannot delineate the full area of involvement for surgical planning. An inpatient planar nuclear medicine imaging study using a radionuclide is performed to map the distribution of infection and inflammatory activity in skin and subcutaneous tissue to guide debridement and medical management. Typical codes: CH1YYZZ.
A patient undergoing inpatient workup after chronic, nonhealing ulceration of the anterior chest and recurrent inflammatory nodules of the breast tissue is evaluated for persistent localized disease despite antibiotics; clinicians need functional imaging to localize occult foci and assess perfusion to plan targeted therapy. Planar nuclear medicine imaging of the affected skin, subcutaneous tissue, and breast with radiotracer administration is obtained to identify active sites and delineate the extent of pathology. Typical codes: CH1YYZZ).

Related Codes

CH10-BREAST-RIGHT-PLANAR-IMAGING

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

CH11-LEFT-BREAST-PLANAR-IMAGING

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

CH12-BREASTS-PLANAR-IMAGING

ICD-10-PCS Code For Breasts Bilateral: 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
CH1YYZZ	Planar Nuclear Medicine Imaging of Skin, Subcutaneous Tissue and Breast using Other Radionuclide

Typical Clinical Scenarios

An elderly inpatient with a history of breast-conserving surgery is admitted for evaluation of a new palpable mass and unexplained focal skin changes over the lumpectomy site; mammography and ultrasound are inconclusive, and there is concern for localized recurrence or post‑surgical scar versus active tumor. A planar nuclear medicine skin/breast study with introduction of a radionuclide is ordered to assess functional activity and tracer uptake in the breast and overlying skin to help differentiate recurrent tumor from scar or inflammation. Typical codes: CH1YYZZ.
A middle-aged patient presents to the hospital with acute, rapidly spreading cellulitis of the chest wall and breast with unclear extent of infected subcutaneous tissue; clinical exam and ultrasound cannot delineate the full area of involvement for surgical planning. An inpatient planar nuclear medicine imaging study using a radionuclide is performed to map the distribution of infection and inflammatory activity in skin and subcutaneous tissue to guide debridement and medical management. Typical codes: CH1YYZZ.
A patient undergoing inpatient workup after chronic, nonhealing ulceration of the anterior chest and recurrent inflammatory nodules of the breast tissue is evaluated for persistent localized disease despite antibiotics; clinicians need functional imaging to localize occult foci and assess perfusion to plan targeted therapy. Planar nuclear medicine imaging of the affected skin, subcutaneous tissue, and breast with radiotracer administration is obtained to identify active sites and delineate the extent of pathology. Typical codes: CH1YYZZ).

Related Codes

CH10-BREAST-RIGHT-PLANAR-IMAGING

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

CH11-LEFT-BREAST-PLANAR-IMAGING

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

CH12-BREASTS-PLANAR-IMAGING

ICD-10-PCS Code For Breasts Bilateral: 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 Skin Subcutaneous Tissue And Breast: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Skin Subcutaneous Tissue And Breast: Procedure Code Group Overview policy alerts

Skin, Subcutaneous Tissue And Breast Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

ICD-10-PCS Code For Skin Subcutaneous Tissue And Breast: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Skin Subcutaneous Tissue And Breast: Procedure Code Group Overview policy alerts

Skin, Subcutaneous Tissue And Breast Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the CH1Y ICD-10-PCS group?

Which ICD-10-PCS code represents planar nuclear medicine imaging of the skin, subcutaneous tissue, and breast using other radionuclide?

Why is accurate coding within the CH1Y group important for inpatient care?

What are the key code attributes for CH1Y procedures?

When should `CH1YYZZ` be used in inpatient documentation?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the CH1Y ICD-10-PCS group?

Which ICD-10-PCS code represents planar nuclear medicine imaging of the skin, subcutaneous tissue, and breast using other radionuclide?

Why is accurate coding within the CH1Y group important for inpatient care?

What are the key code attributes for CH1Y procedures?

When should `CH1YYZZ` be used in inpatient documentation?

References