ICD-10-PCS Code For Phrenic Nerve: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 01X2 includes procedures performed to transfer all or a portion of the phrenic nerve to another location to take over the function of a body part in the peripheral nervous system. These ICD-10-PCS codes are used for inpatient documentation when a surgeon relocates the phrenic nerve or a portion of it to restore or replace function of another nerve or motor unit. Accurate coding within the ICD-10-PCS 01X2 group is essential for proper inpatient reimbursement, as it captures the specific transfer procedure performed and supports clinical documentation accuracy and appropriate case mix assignment.

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Phrenic Nerve Transfer Procedure Overview

Procedures in the ICD-10 PCS 01X2 group involve transferring all or a portion of the phrenic nerve to another location within the peripheral nervous system so it can assume the function of another nerve or neural structure. These operations target the Peripheral Nervous System and specifically the phrenic nerve. Accurate ICD-10-PCS coding is important for inpatient reimbursement because it documents the precise operation and anatomical target, which affects case mix classification and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
1	Body System	Peripheral Nervous System
X	Operation	Transfer
2	Body Part	Phrenic Nerve

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ICD-10-PCS Code For Phrenic Nerve: Procedure Code Group Overview

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Phrenic Nerve Transfer Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
1	Body System	Peripheral Nervous System
X	Operation	Transfer
2	Body Part	Phrenic Nerve

When to Use

Use a code from this group when the phrenic nerve, or a portion of it, is surgically relocated to restore or replace function of another nerve or muscle group. These codes apply when the operation is a transfer rather than a resection, repair, or replacement.

ICD-10-PCS Codes

4 rows

ICD-10-PCS Code	Description
01X20Z1	Transfer Phrenic Nerve to Cervical Nerve, Open Approach
01X20Z2	Transfer Phrenic Nerve to Phrenic Nerve, Open Approach
01X24Z1	Transfer Phrenic Nerve to Cervical Nerve, Percutaneous Endoscopic Approach
01X24Z2	Transfer Phrenic Nerve to Phrenic Nerve, Percutaneous Endoscopic Approach

DRG Codes

3 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC

Typical Clinical Scenarios

A young adult with traumatic brachial plexus avulsion after a high-speed motorcycle collision presents with diaphragmatic function intact but denervation of shoulder and elbow muscles; after stabilization and evaluation in the inpatient setting, the surgical team performs a nerve transfer relocating part of the phrenic nerve to reinnervate cervical nerve roots to restore motor function of the upper limb. This is done as a planned reconstructive procedure during the same admission for definitive repair. Typical codes: 01X20Z1, 01X24Z1
An adult patient with progressive brachial plexopathy from a malignancy invading the cervical nerve roots suffers loss of shoulder abduction and elbow flexion; inpatient palliative reconstructive surgery is scheduled to transfer a segment of the phrenic nerve to a cervical nerve to regain partial upper extremity function and improve quality of life. The operation is elective but performed in the hospital due to complexity and monitoring requirements. Typical codes: 01X20Z1, 01X24Z1
A patient previously underwent a phrenic-to-phrenic nerve transfer that failed to restore function and now presents with persistent respiratory compromise and inadequate donor nerve function; during an inpatient revision, the surgeon repositions or transfers a segment of the phrenic nerve using an open approach to attempt salvage and optimize diaphragmatic or contralateral nerve function. Typical codes: 01X20Z2

Related Codes

01X1-CERVICAL-NERVE-TRANSFER

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

01X4-ULNAR-NERVE-TRANSFER

ICD-10-PCS Code For Ulnar Nerve: Procedure Code Group Overview

01X5-MEDIAN-NERVE-TRANSFER

ICD-10-PCS Code For Median Nerve: Procedure Code Group Overview

01X6-RADIAL-NERVE-TRANSFER

ICD-10-PCS Code For Radial Nerve: Procedure Code Group Overview

01X8-THORACIC-NERVE-TRANSFER

ICD-10-PCS Code For Thoracic Nerve: Procedure Code Group Overview

01XB-LUMBAR-NERVE-TRANSFER

ICD-10-PCS Code For Lumbar Nerve: Procedure Code Group Overview

01XC-PUDENDAL-NERVE-TRANSFER

ICD-10-PCS Code For Pudendal Nerve: Procedure Code Group Overview

01XD-FEMORAL-NERVE-TRANSFER

ICD-10-PCS Code For Femoral Nerve: Procedure Code Group Overview

01XF-SCIATIC-NERVE-TRANSFER

ICD-10-PCS Code For Sciatic Nerve: Procedure Code Group Overview

01XG-TIBIAL-NERVE-TRANSFER

ICD-10-PCS Code For Tibial Nerve: 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

4 rows

ICD-10-PCS Code	Description
01X20Z1	Transfer Phrenic Nerve to Cervical Nerve, Open Approach
01X20Z2	Transfer Phrenic Nerve to Phrenic Nerve, Open Approach
01X24Z1	Transfer Phrenic Nerve to Cervical Nerve, Percutaneous Endoscopic Approach
01X24Z2	Transfer Phrenic Nerve to Phrenic Nerve, Percutaneous Endoscopic Approach

DRG Codes

3 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC

Typical Clinical Scenarios

A young adult with traumatic brachial plexus avulsion after a high-speed motorcycle collision presents with diaphragmatic function intact but denervation of shoulder and elbow muscles; after stabilization and evaluation in the inpatient setting, the surgical team performs a nerve transfer relocating part of the phrenic nerve to reinnervate cervical nerve roots to restore motor function of the upper limb. This is done as a planned reconstructive procedure during the same admission for definitive repair. Typical codes: 01X20Z1, 01X24Z1
An adult patient with progressive brachial plexopathy from a malignancy invading the cervical nerve roots suffers loss of shoulder abduction and elbow flexion; inpatient palliative reconstructive surgery is scheduled to transfer a segment of the phrenic nerve to a cervical nerve to regain partial upper extremity function and improve quality of life. The operation is elective but performed in the hospital due to complexity and monitoring requirements. Typical codes: 01X20Z1, 01X24Z1
A patient previously underwent a phrenic-to-phrenic nerve transfer that failed to restore function and now presents with persistent respiratory compromise and inadequate donor nerve function; during an inpatient revision, the surgeon repositions or transfers a segment of the phrenic nerve using an open approach to attempt salvage and optimize diaphragmatic or contralateral nerve function. Typical codes: 01X20Z2

Related Codes

01X1-CERVICAL-NERVE-TRANSFER

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

01X4-ULNAR-NERVE-TRANSFER

ICD-10-PCS Code For Ulnar Nerve: Procedure Code Group Overview

01X5-MEDIAN-NERVE-TRANSFER

ICD-10-PCS Code For Median Nerve: Procedure Code Group Overview

01X6-RADIAL-NERVE-TRANSFER

ICD-10-PCS Code For Radial Nerve: Procedure Code Group Overview

01X8-THORACIC-NERVE-TRANSFER

ICD-10-PCS Code For Thoracic Nerve: Procedure Code Group Overview

01XB-LUMBAR-NERVE-TRANSFER

ICD-10-PCS Code For Lumbar Nerve: Procedure Code Group Overview

01XC-PUDENDAL-NERVE-TRANSFER

ICD-10-PCS Code For Pudendal Nerve: Procedure Code Group Overview

01XD-FEMORAL-NERVE-TRANSFER

ICD-10-PCS Code For Femoral Nerve: Procedure Code Group Overview

01XF-SCIATIC-NERVE-TRANSFER

ICD-10-PCS Code For Sciatic Nerve: Procedure Code Group Overview

01XG-TIBIAL-NERVE-TRANSFER

ICD-10-PCS Code For Tibial Nerve: 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 Phrenic Nerve: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Phrenic Nerve: Procedure Code Group Overview policy alerts

Phrenic Nerve Transfer Procedure Overview

Code Attributes

ICD-10-PCS Code For Phrenic Nerve: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Phrenic Nerve: Procedure Code Group Overview policy alerts

Phrenic Nerve Transfer Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 01X2 code group?

What is the primary clinical purpose of procedures coded in 01X2?

What ICD-10-PCS attributes define the 01X2 code group?

How do codes in this group differ by approach and target?

How does accurate coding within 01X2 affect reimbursement and case assignment?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 01X2 code group?

What is the primary clinical purpose of procedures coded in 01X2?

What ICD-10-PCS attributes define the 01X2 code group?

How do codes in this group differ by approach and target?

How does accurate coding within 01X2 affect reimbursement and case assignment?

References