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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CP1F includes procedures performed to image physiological function using introduced radioactive materials in the lower extremities, bilateral. These ICD-10-PCS codes are used for inpatient documentation when planar nuclear medicine imaging with introduced radiotracers is performed to evaluate musculoskeletal conditions of both lower extremities. Accurate coding within the ICD-10-PCS CP1F 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 Extremities Planar Nuclear Medicine Imaging Procedure Overview

This group includes planar nuclear medicine imaging procedures of the lower extremities performed to capture radioactive emissions for single plane display of images. These studies target the musculoskeletal system of both lower extremities and use introduced radiotracers to visualize physiological processes. Accurate ICD-10-PCS coding for these procedures supports correct inpatient documentation and reimbursement by reflecting the specific imaging operation and anatomical focus.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
P	Body System	Musculoskeletal System
1	Operation	Planar Nuclear Medicine Imaging
F	Body Part	Lower Extremities, Bilateral

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

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Lower Extremities Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
P	Body System	Musculoskeletal System
1	Operation	Planar Nuclear Medicine Imaging
F	Body Part	Lower Extremities, Bilateral

When to Use

Use a code from this group when a radiotracer is introduced into the body to perform planar nuclear medicine imaging of both lower extremities for diagnostic evaluation. These codes apply when single plane nuclear imaging is performed to assess musculoskeletal function or pathology in the bilateral lower extremities.

ICD-10-PCS Codes

2 rows

ICD-10-PCS Code	Description
CP1F1ZZ	Planar Nuclear Medicine Imaging of Bilateral Lower Extremities using Technetium 99m (Tc-99m)
CP1FYZZ	Planar Nuclear Medicine Imaging of Bilateral Lower Extremities using Other Radionuclide

Typical Clinical Scenarios

An elderly patient hospitalized after a fall presents with persistent bilateral lower extremity pain and suspected stress fractures not clearly identified on X-ray. The inpatient team orders planar nuclear medicine imaging after injection of technetium-99m to assess occult fractures and bone perfusion in both legs. The study targets the musculoskeletal system of the lower extremities using a single-plane radionuclide scan to guide further orthopedic management. Typical codes: CP1F1ZZ
A middle-aged patient admitted for evaluation of chronic bilateral lower extremity pain and suspected multifocal osteomyelitis undergoes planar nuclear medicine imaging with an introduced radionuclide to assess metabolic activity in bone. The inpatient planar scan of both lower extremities helps localize areas of increased radiotracer uptake to differentiate active infection from chronic changes and to inform antimicrobial planning. Technetium-99m is commonly used for this type of musculoskeletal functional imaging. Typical codes: CP1F1ZZ
A patient with prior bilateral lower extremity orthopedic hardware is admitted with worsening limb swelling and concern for prosthetic-associated infection versus aseptic inflammation. Planar nuclear medicine imaging using a non-technetium radionuclide is performed after tracer introduction to evaluate physiologic bone activity across both lower extremities when other modalities are inconclusive. The single-plane radionuclide study assists in distinguishing infected from noninfected regions around implants to guide further intervention. Typical codes: CP1FYZZ

Related Codes

CP11-SKULL-PLANAR-IMAGING

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

CP14-THORAX-PLANAR-IMAGING

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

CP15-SPINE-PLANAR-IMAGING

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

CP16-PELVIS-PLANAR-IMAGING

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

CP17-SPINE-AND-PELVIS-PLANAR-IMAGING

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

CP18-UPPER-EXTREMITY-RIGHT-INTRODUCTION-UPPER-EXTREMITY-RIGHT-PLANAR

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

CP19-UPPER-EXTREMITY-LEFT-PLANAR-IMAGING

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

CP1B-UPPER-EXTREMITIES-BILATERAL-PLANAR-IMAGING

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

CP1C-LOWER-EXTREMITY-RIGHT-PLANAR-IMAGING

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

CP1D-LEFT-LOWER-EXTREMITY-PLANAR-IMAGING

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

Showing 1–10 of 12

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
CP1F1ZZ	Planar Nuclear Medicine Imaging of Bilateral Lower Extremities using Technetium 99m (Tc-99m)
CP1FYZZ	Planar Nuclear Medicine Imaging of Bilateral Lower Extremities using Other Radionuclide

Typical Clinical Scenarios

An elderly patient hospitalized after a fall presents with persistent bilateral lower extremity pain and suspected stress fractures not clearly identified on X-ray. The inpatient team orders planar nuclear medicine imaging after injection of technetium-99m to assess occult fractures and bone perfusion in both legs. The study targets the musculoskeletal system of the lower extremities using a single-plane radionuclide scan to guide further orthopedic management. Typical codes: CP1F1ZZ
A middle-aged patient admitted for evaluation of chronic bilateral lower extremity pain and suspected multifocal osteomyelitis undergoes planar nuclear medicine imaging with an introduced radionuclide to assess metabolic activity in bone. The inpatient planar scan of both lower extremities helps localize areas of increased radiotracer uptake to differentiate active infection from chronic changes and to inform antimicrobial planning. Technetium-99m is commonly used for this type of musculoskeletal functional imaging. Typical codes: CP1F1ZZ
A patient with prior bilateral lower extremity orthopedic hardware is admitted with worsening limb swelling and concern for prosthetic-associated infection versus aseptic inflammation. Planar nuclear medicine imaging using a non-technetium radionuclide is performed after tracer introduction to evaluate physiologic bone activity across both lower extremities when other modalities are inconclusive. The single-plane radionuclide study assists in distinguishing infected from noninfected regions around implants to guide further intervention. Typical codes: CP1FYZZ

Related Codes

CP11-SKULL-PLANAR-IMAGING

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

CP14-THORAX-PLANAR-IMAGING

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

CP15-SPINE-PLANAR-IMAGING

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

CP16-PELVIS-PLANAR-IMAGING

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

CP17-SPINE-AND-PELVIS-PLANAR-IMAGING

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

CP18-UPPER-EXTREMITY-RIGHT-INTRODUCTION-UPPER-EXTREMITY-RIGHT-PLANAR

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

CP19-UPPER-EXTREMITY-LEFT-PLANAR-IMAGING

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

CP1B-UPPER-EXTREMITIES-BILATERAL-PLANAR-IMAGING

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

CP1C-LOWER-EXTREMITY-RIGHT-PLANAR-IMAGING

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

CP1D-LEFT-LOWER-EXTREMITY-PLANAR-IMAGING

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

Showing 1–10 of 12

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 Lower Extremities: Procedure Code Group Overview

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

Lower Extremities Planar Nuclear Medicine Imaging Procedure Overview

Code Attributes

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

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

Lower Extremities 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 CP1F code group?

What is the operation and body system described by these codes?

When should the CP1F ICD-10-PCS codes be used in documentation?

What are the specific code variants and how do they differ?

Are there DRGs associated with the CP1F code group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the CP1F code group?

What is the operation and body system described by these codes?

When should the CP1F ICD-10-PCS codes be used in documentation?

What are the specific code variants and how do they differ?

Are there DRGs associated with the CP1F code group?

References