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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 00UN includes procedures performed to supplement the function of structures in the acoustic nerve. These ICD-10-PCS codes are used for inpatient documentation when biological or synthetic material is placed to reinforce or augment acoustic nerve function. Accurate coding within the ICD-10-PCS 00UN group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Acoustic Nerve Supplement Procedure Overview

Procedures in this group involve placing biological or synthetic material to reinforce or augment the function of the acoustic nerve, which is part of the central nervous system and cranial nerves. These supplement operations target the acoustic nerve to support or enhance its function. Accurate ICD-10-PCS coding of these procedures is important for inpatient reimbursement because it captures the specific operation and body part treated, supporting appropriate case mix and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
0	Body System	Central Nervous System and Cranial Nerves
U	Operation	Supplement
N	Body Part	Acoustic Nerve

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

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Acoustic Nerve Supplement Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
0	Body System	Central Nervous System and Cranial Nerves
U	Operation	Supplement
N	Body Part	Acoustic Nerve

When to Use

Use a code from this group when a surgeon places material on or in the acoustic nerve specifically to support or augment its function. These codes apply only in the inpatient setting where documentation indicates a supplement operation on the acoustic nerve.

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
00UN07Z	Supplement Acoustic Nerve with Autologous Tissue Substitute, Open Approach
00UN0JZ	Supplement Acoustic Nerve with Synthetic Substitute, Open Approach
00UN0KZ	Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Open Approach
00UN37Z	Supplement Acoustic Nerve with Autologous Tissue Substitute, Percutaneous Approach
00UN3JZ	Supplement Acoustic Nerve with Synthetic Substitute, Percutaneous Approach
00UN3KZ	Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Percutaneous Approach
00UN47Z	Supplement Acoustic Nerve with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
00UN4JZ	Supplement Acoustic Nerve with Synthetic Substitute, Percutaneous Endoscopic Approach
00UN4KZ	Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

DRG Codes

12 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
143	Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC
144	Other Ear, Nose, Mouth and Throat O.R. Procedures with CC
145	Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC
908	Other O.R. Procedures for Injuries with CC
909	Other O.R. Procedures for Injuries without CC/MCC
957	Other O.R. Procedures for Multiple Significant Trauma with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

An elderly patient with progressive sensorineural hearing loss and vestibular dysfunction secondary to a benign vestibular schwannoma undergoes a planned inpatient procedure to reinforce the residual acoustic nerve after tumor debulking to preserve remaining nerve function; the operation places a biologic graft onto the nerve to augment conduction and support healing following open cranial base exposure. Typical codes: 00UN07Z, 00UN0KZ
A middle-aged adult presents acutely with traumatic temporal bone fracture and partial transection of the acoustic nerve causing sudden profound hearing loss and balance instability; during the same inpatient repair, the surgeon applies a synthetic nerve wrap via a percutaneous approach to supplement and protect the injured nerve while awaiting nerve regeneration. Typical codes: 00UN3JZ
A patient with prior acoustic nerve repair develops symptomatic graft failure and scarring leading to recurrent auditory dysfunction; during a planned inpatient revision, the surgeon performs percutaneous endoscopic removal of scar tissue and places an autologous tissue substitute over the acoustic nerve to augment function and reduce recurrent adhesions. Typical codes: 00UN47Z

Related Codes

00U1-CEREBRAL-MENINGES-SUPPLEMENT

ICD-10-PCS Code For Cerebral Meninges: Procedure Code Group Overview

00U2-DURA-MATER-SUPPLEMENT

ICD-10-PCS Code For Dura Mater: Procedure Code Group Overview

00U6-CEREBRAL-VENTRICLE-SUPPLEMENT

ICD-10-PCS Code For Cerebral Ventricle: Procedure Code Group Overview

00UF-OLFACTORY-NERVE-SUPPLEMENT

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

00UG-OPTIC-NERVE-SUPPLEMENT

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

00UH-OCULOMOTOR-NERVE-SUPPLEMENT

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

00UJ-TROCHLEAR-NERVE-AUGMENTATION-TROCHLEAR-NERVE-SUPPLEMENT

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

00UK-TRIGEMINAL-NERVE-SUPPLEMENT

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

00UL-ABDUCENS-NERVE-SUPPLEMENT

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

00UM-FACIAL-NERVE-SUPPLEMENT

ICD-10-PCS Code For Facial Nerve: 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

9 rows

ICD-10-PCS Code	Description
00UN07Z	Supplement Acoustic Nerve with Autologous Tissue Substitute, Open Approach
00UN0JZ	Supplement Acoustic Nerve with Synthetic Substitute, Open Approach
00UN0KZ	Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Open Approach
00UN37Z	Supplement Acoustic Nerve with Autologous Tissue Substitute, Percutaneous Approach
00UN3JZ	Supplement Acoustic Nerve with Synthetic Substitute, Percutaneous Approach
00UN3KZ	Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Percutaneous Approach
00UN47Z	Supplement Acoustic Nerve with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
00UN4JZ	Supplement Acoustic Nerve with Synthetic Substitute, Percutaneous Endoscopic Approach
00UN4KZ	Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

DRG Codes

12 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
143	Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC
144	Other Ear, Nose, Mouth and Throat O.R. Procedures with CC
145	Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC
908	Other O.R. Procedures for Injuries with CC
909	Other O.R. Procedures for Injuries without CC/MCC
957	Other O.R. Procedures for Multiple Significant Trauma with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

An elderly patient with progressive sensorineural hearing loss and vestibular dysfunction secondary to a benign vestibular schwannoma undergoes a planned inpatient procedure to reinforce the residual acoustic nerve after tumor debulking to preserve remaining nerve function; the operation places a biologic graft onto the nerve to augment conduction and support healing following open cranial base exposure. Typical codes: 00UN07Z, 00UN0KZ
A middle-aged adult presents acutely with traumatic temporal bone fracture and partial transection of the acoustic nerve causing sudden profound hearing loss and balance instability; during the same inpatient repair, the surgeon applies a synthetic nerve wrap via a percutaneous approach to supplement and protect the injured nerve while awaiting nerve regeneration. Typical codes: 00UN3JZ
A patient with prior acoustic nerve repair develops symptomatic graft failure and scarring leading to recurrent auditory dysfunction; during a planned inpatient revision, the surgeon performs percutaneous endoscopic removal of scar tissue and places an autologous tissue substitute over the acoustic nerve to augment function and reduce recurrent adhesions. Typical codes: 00UN47Z

Related Codes

00U1-CEREBRAL-MENINGES-SUPPLEMENT

ICD-10-PCS Code For Cerebral Meninges: Procedure Code Group Overview

00U2-DURA-MATER-SUPPLEMENT

ICD-10-PCS Code For Dura Mater: Procedure Code Group Overview

00U6-CEREBRAL-VENTRICLE-SUPPLEMENT

ICD-10-PCS Code For Cerebral Ventricle: Procedure Code Group Overview

00UF-OLFACTORY-NERVE-SUPPLEMENT

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

00UG-OPTIC-NERVE-SUPPLEMENT

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

00UH-OCULOMOTOR-NERVE-SUPPLEMENT

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

00UJ-TROCHLEAR-NERVE-AUGMENTATION-TROCHLEAR-NERVE-SUPPLEMENT

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

00UK-TRIGEMINAL-NERVE-SUPPLEMENT

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

00UL-ABDUCENS-NERVE-SUPPLEMENT

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

00UM-FACIAL-NERVE-SUPPLEMENT

ICD-10-PCS Code For Facial Nerve: 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 Acoustic Nerve: Procedure Code Group Overview

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

Acoustic Nerve Supplement Procedure Overview

Code Attributes

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

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

Acoustic Nerve Supplement Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group is used for procedures that supplement acoustic nerve function?

What are the main attributes of the 00UN code group in ICD-10-PCS?

Which specific procedure codes are included in the 00UN group for open, percutaneous, and percutaneous endoscopic approaches?

How does accurate coding within the 00UN group affect inpatient reimbursement?

Which DRG categories may be related to procedures coded in the 00UN group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group is used for procedures that supplement acoustic nerve function?

What are the main attributes of the 00UN code group in ICD-10-PCS?

Which specific procedure codes are included in the 00UN group for open, percutaneous, and percutaneous endoscopic approaches?

How does accurate coding within the 00UN group affect inpatient reimbursement?

Which DRG categories may be related to procedures coded in the 00UN group?

References