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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group C71P includes procedures performed to introduce radioactive materials for planar nuclear medicine imaging of the lymphatics in the lower extremity. These ICD-10-PCS codes are used for inpatient documentation when radiopharmaceuticals are administered to capture single-plane images of lymphatic anatomy or function in the lower extremities. Accurate coding within the ICD-10-PCS C71P group is essential for proper inpatient reimbursement, as it captures the nuclear medicine imaging performed and supports clinical documentation accuracy.

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Lymphatics, Lower Extremity Planar Nuclear Medicine Imaging Procedure Overview

This procedure group includes introduction of radioactive materials for planar imaging of the lymphatics in the lower extremity and targets the lymphatic and hematologic system. Procedures involve administration of radiopharmaceuticals and capture of emitted radiation to produce single-plane images for diagnostic or staging purposes. Accurate ICD-10-PCS coding ensures the inpatient record reflects the nuclear medicine imaging performed and supports appropriate case mix assignment and reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
7	Body System	Lymphatic and Hematologic System
1	Operation	Planar Nuclear Medicine Imaging
P	Body Part	Lymphatics, Lower Extremity

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

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Lymphatics, Lower Extremity Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
7	Body System	Lymphatic and Hematologic System
1	Operation	Planar Nuclear Medicine Imaging
P	Body Part	Lymphatics, Lower Extremity

When to Use

Use a code from this group when a radiopharmaceutical is administered specifically to image the lymphatics of the lower extremity with planar nuclear medicine techniques. These codes are applied when single-plane imaging is captured to evaluate lymphatic anatomy or function during an inpatient encounter.

ICD-10-PCS Codes

2 rows

ICD-10-PCS Code	Description
C71P1ZZ	Planar Nuclear Medicine Imaging of Lower Extremity Lymphatics using Technetium 99m (Tc-99m)
C71PYZZ	Planar Nuclear Medicine Imaging of Lower Extremity Lymphatics using Other Radionuclide

Typical Clinical Scenarios

An elderly patient hospitalized for cellulitis and extensive lower-extremity swelling after a recent foot wound presents with persistent unilateral lymphatic drainage dysfunction suspected to have occult lymphatic obstruction. Inpatient planar nuclear medicine imaging is performed after intradermal injection of a radiopharmaceutical to map lymphatic channels and identify sites of delayed transport or obstruction to guide ongoing inpatient management. Typical codes: C71P1ZZ, C71PYZZ
A middle-aged patient admitted electively for evaluation of chronic unilateral lower extremity lymphedema of unclear etiology undergoes diagnostic lymphatic mapping with planar imaging to delineate lymphatic anatomy prior to potential surgical planning or conservative therapy adjustments. The radiopharmaceutical is administered and single-plane images are acquired to assess lymphatic flow patterns and collateral formation during the inpatient workup. Typical codes: C71P1ZZ, C71PYZZ
A patient recently treated for melanoma of the distal lower extremity develops postoperative concerns for lymphatic leak versus impaired drainage while admitted for wound care; planar lymphoscintigraphy is ordered to evaluate postoperative lymphatic transport and detect focal sites of leakage or obstruction. Intradermal radiotracer injection and single-plane imaging are used to localize dysfunctional lymphatic pathways during the inpatient stay to inform clinical decisions. Typical codes: C71P1ZZ, C71PYZZ

Related Codes

C710-BONE-MARROW-PLANAR-IMAGING

ICD-10-PCS Code For Bone Marrow: Procedure Code Group Overview

C712-SPLEEN-INTRODUCTION-OF-RADIOACTIVE-MATERIALS-SPLEEN-PLANAR

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

C713-BLOOD-PLANAR-NUCLEAR-MEDICINE-IMAGING

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

C715-LYMPHATICS-HEAD-AND-NECK-PLANAR-IMAGING

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

C71D-LYMPHATICS-PELVIC-PLANAR-IMAGING

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

C71J-LYMPHATICS-HEAD-PLANAR-IMAGING

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

C71K-LYMPHATICS-NECK-PLANAR-IMAGING

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

C71L-LYMPHATICS-UPPER-CHEST-PLANAR

ICD-10-PCS Code For Lymphatics, Upper Chest: Procedure Code Group Overview

C71M-LYMPHATICS-TRUNK-PLANAR-IMAGING

ICD-10-PCS Code For Lymphatics, Trunk: Procedure Code Group Overview

C71N-LYMPHATICS-UPPER-EXTREMITY-PLANAR-IMAGING

ICD-10-PCS Code For Lymphatics, Upper Extremity: 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

2 rows

ICD-10-PCS Code	Description
C71P1ZZ	Planar Nuclear Medicine Imaging of Lower Extremity Lymphatics using Technetium 99m (Tc-99m)
C71PYZZ	Planar Nuclear Medicine Imaging of Lower Extremity Lymphatics using Other Radionuclide

Typical Clinical Scenarios

An elderly patient hospitalized for cellulitis and extensive lower-extremity swelling after a recent foot wound presents with persistent unilateral lymphatic drainage dysfunction suspected to have occult lymphatic obstruction. Inpatient planar nuclear medicine imaging is performed after intradermal injection of a radiopharmaceutical to map lymphatic channels and identify sites of delayed transport or obstruction to guide ongoing inpatient management. Typical codes: C71P1ZZ, C71PYZZ
A middle-aged patient admitted electively for evaluation of chronic unilateral lower extremity lymphedema of unclear etiology undergoes diagnostic lymphatic mapping with planar imaging to delineate lymphatic anatomy prior to potential surgical planning or conservative therapy adjustments. The radiopharmaceutical is administered and single-plane images are acquired to assess lymphatic flow patterns and collateral formation during the inpatient workup. Typical codes: C71P1ZZ, C71PYZZ
A patient recently treated for melanoma of the distal lower extremity develops postoperative concerns for lymphatic leak versus impaired drainage while admitted for wound care; planar lymphoscintigraphy is ordered to evaluate postoperative lymphatic transport and detect focal sites of leakage or obstruction. Intradermal radiotracer injection and single-plane imaging are used to localize dysfunctional lymphatic pathways during the inpatient stay to inform clinical decisions. Typical codes: C71P1ZZ, C71PYZZ

Related Codes

C710-BONE-MARROW-PLANAR-IMAGING

ICD-10-PCS Code For Bone Marrow: Procedure Code Group Overview

C712-SPLEEN-INTRODUCTION-OF-RADIOACTIVE-MATERIALS-SPLEEN-PLANAR

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

C713-BLOOD-PLANAR-NUCLEAR-MEDICINE-IMAGING

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

C715-LYMPHATICS-HEAD-AND-NECK-PLANAR-IMAGING

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

C71D-LYMPHATICS-PELVIC-PLANAR-IMAGING

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

C71J-LYMPHATICS-HEAD-PLANAR-IMAGING

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

C71K-LYMPHATICS-NECK-PLANAR-IMAGING

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

C71L-LYMPHATICS-UPPER-CHEST-PLANAR

ICD-10-PCS Code For Lymphatics, Upper Chest: Procedure Code Group Overview

C71M-LYMPHATICS-TRUNK-PLANAR-IMAGING

ICD-10-PCS Code For Lymphatics, Trunk: Procedure Code Group Overview

C71N-LYMPHATICS-UPPER-EXTREMITY-PLANAR-IMAGING

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

Sign up for ICD-10-PCS Code For Lymphatics Lower Extremity: Procedure Code Group Overview policy alerts

Lymphatics, Lower Extremity Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

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

Sign up for ICD-10-PCS Code For Lymphatics Lower Extremity: Procedure Code Group Overview policy alerts

Lymphatics, Lower Extremity 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 ICD-10-PCS C71P group?

What body system and operation does the C71P code group target?

What are the individual ICD-10-PCS codes in this group and how should they be cited?

How does accurate coding within the C71P group affect inpatient documentation and billing?

What imaging modality and image type are described in this procedure group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS C71P group?

What body system and operation does the C71P code group target?

What are the individual ICD-10-PCS codes in this group and how should they be cited?

How does accurate coding within the C71P group affect inpatient documentation and billing?

What imaging modality and image type are described in this procedure group?

References