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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CP2D includes procedures performed to image musculoskeletal structures in the left lower extremity using tomographic nuclear medicine techniques. These ICD-10-PCS codes are used for inpatient documentation when three dimensional nuclear medicine imaging of the left lower extremity is performed following introduction of radioactive materials. Accurate coding within the ICD-10-PCS CP2D group is essential for proper inpatient reimbursement, as it captures the specific imaging procedure performed and supports clinical documentation accuracy.

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Lower Extremity Tomographic Nuclear Medicine Imaging Procedure Overview

This procedure group includes tomographic nuclear medicine imaging studies of the left lower extremity that use introduced radiopharmaceuticals to capture three dimensional images from emitted radiation. These procedures target the musculoskeletal system of the left lower extremity and involve acquisition of tomographic image sets for diagnostic evaluation. Accurate ICD-10-PCS coding is important for reflecting the specific imaging operation and body part on the inpatient record and for proper case mix and payment assignment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
P	Body System	Musculoskeletal System
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
D	Body Part	Lower Extremity, Left

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

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Lower Extremity Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
P	Body System	Musculoskeletal System
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
D	Body Part	Lower Extremity, Left

When to Use

Use a code from this group when a tomographic nuclear medicine study of the left lower extremity is performed with introduction of radioactive materials to produce three dimensional images. These codes apply for inpatient encounters when the imaging is documented as the performed procedure on the left lower extremity musculoskeletal system.

ICD-10-PCS Codes

2 rows

ICD-10-PCS Code	Description
CP2D1ZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Left Lower Extremity using Technetium 99m (Tc-99m)
CP2DYZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Left Lower Extremity using Other Radionuclide

Typical Clinical Scenarios

An elderly patient is admitted for evaluation of suspected osteomyelitis of the left foot after chronic, nonhealing diabetic foot ulcer with increasing localized pain and swelling. Blood cultures are inconclusive and plain radiographs are nondiagnostic; a tomographic nuclear medicine study is performed after injection of a radiopharmaceutical to assess for focal bone infection in the left lower extremity. The three-dimensional imaging will help localize active bone turnover and guide further management decisions. Typical codes: CP2D1ZZ, CP2DYZZ
A middle-aged patient with a history of multiple left knee surgeries is admitted for scheduled preoperative imaging to evaluate suspected loosening or infection of a prosthetic left knee joint. A tomographic nuclear medicine scan using an appropriate radiotracer is obtained to characterize metabolic activity in the left lower extremity and differentiate aseptic loosening from periprosthetic infection prior to revision planning. Typical codes: CP2D1ZZ, CP2DYZZ
A hospitalized patient developed progressive left calf pain and concern for occult stress fracture after an earlier conservative treatment for overuse injury failed and plain films remain equivocal. A tomographic nuclear medicine imaging study is ordered with radiopharmaceutical administration to detect focal increased bone turnover in the left lower extremity and help determine the need for immobilization or surgical intervention. Typical codes: CP2D1ZZ

Related Codes

CP21-SKULL-TOMOGRAPHIC-IMAGING

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

CP22-CERVICAL-SPINE-TOMOGRAPHIC-IMAGING

ICD-10-PCS Code For Cervical Spine: Procedure Code Group Overview

CP23-SKULL-AND-CERVICAL-SPINE-TOMOGRAPHIC

ICD-10-PCS Code For Skull And Cervical Spine: Procedure Code Group Overview

CP24-THORAX-TOMOGRAPHIC-NUCLEAR-MEDICINE

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

CP26-PELVIS-TOMOGRAPHIC-IMAGING

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

CP27-SPINE-PELVIS-TOMOGRAPHIC-IMAGING

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

CP28-UPPER-EXTREMITY-RIGHT-TOMOGRAPHIC

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

CP29-UPPER-EXTREMITY-LEFT-TOMOGRAPHIC

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

CP2B-UPPER-EXTREMITIES-BILATERAL-TOMOGRAPHIC

ICD-10-PCS Code For Upper Extremities Bilateral: Procedure Code Group Overview

CP2C-LOWER-EXTREMITY-RIGHT-TOMOGRAPHIC

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

Showing 1–10 of 15

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
CP2D1ZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Left Lower Extremity using Technetium 99m (Tc-99m)
CP2DYZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Left Lower Extremity using Other Radionuclide

Typical Clinical Scenarios

An elderly patient is admitted for evaluation of suspected osteomyelitis of the left foot after chronic, nonhealing diabetic foot ulcer with increasing localized pain and swelling. Blood cultures are inconclusive and plain radiographs are nondiagnostic; a tomographic nuclear medicine study is performed after injection of a radiopharmaceutical to assess for focal bone infection in the left lower extremity. The three-dimensional imaging will help localize active bone turnover and guide further management decisions. Typical codes: CP2D1ZZ, CP2DYZZ
A middle-aged patient with a history of multiple left knee surgeries is admitted for scheduled preoperative imaging to evaluate suspected loosening or infection of a prosthetic left knee joint. A tomographic nuclear medicine scan using an appropriate radiotracer is obtained to characterize metabolic activity in the left lower extremity and differentiate aseptic loosening from periprosthetic infection prior to revision planning. Typical codes: CP2D1ZZ, CP2DYZZ
A hospitalized patient developed progressive left calf pain and concern for occult stress fracture after an earlier conservative treatment for overuse injury failed and plain films remain equivocal. A tomographic nuclear medicine imaging study is ordered with radiopharmaceutical administration to detect focal increased bone turnover in the left lower extremity and help determine the need for immobilization or surgical intervention. Typical codes: CP2D1ZZ

Related Codes

CP21-SKULL-TOMOGRAPHIC-IMAGING

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

CP22-CERVICAL-SPINE-TOMOGRAPHIC-IMAGING

ICD-10-PCS Code For Cervical Spine: Procedure Code Group Overview

CP23-SKULL-AND-CERVICAL-SPINE-TOMOGRAPHIC

ICD-10-PCS Code For Skull And Cervical Spine: Procedure Code Group Overview

CP24-THORAX-TOMOGRAPHIC-NUCLEAR-MEDICINE

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

CP26-PELVIS-TOMOGRAPHIC-IMAGING

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

CP27-SPINE-PELVIS-TOMOGRAPHIC-IMAGING

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

CP28-UPPER-EXTREMITY-RIGHT-TOMOGRAPHIC

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

CP29-UPPER-EXTREMITY-LEFT-TOMOGRAPHIC

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

CP2B-UPPER-EXTREMITIES-BILATERAL-TOMOGRAPHIC

ICD-10-PCS Code For Upper Extremities Bilateral: Procedure Code Group Overview

CP2C-LOWER-EXTREMITY-RIGHT-TOMOGRAPHIC

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

Showing 1–10 of 15

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 Left Lower Extremity: Procedure Code Group Overview

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

Lower Extremity Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

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

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

Lower Extremity Tomographic 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 CP2D code group for the left lower extremity?

What is the section and body system classification for CP2D codes?

When should `CP2D1ZZ` or `CP2DYZZ` be used in inpatient documentation?

How does accurate coding within the CP2D group affect reimbursement and records?

Are there related DRGs listed for the CP2D code group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS CP2D code group for the left lower extremity?

What is the section and body system classification for CP2D codes?

When should `CP2D1ZZ` or `CP2DYZZ` be used in inpatient documentation?

How does accurate coding within the CP2D group affect reimbursement and records?

Are there related DRGs listed for the CP2D code group?

References