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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group B03C includes procedures performed to image acoustic nerves using magnetic resonance imaging in the central nervous system. These ICD-10-PCS codes are used for inpatient documentation when magnetic resonance imaging of the acoustic nerves is performed for diagnostic evaluation or preoperative planning. Accurate coding within the ICD-10-PCS B03C group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Acoustic Nerves Magnetic Resonance Imaging Procedure Overview

This procedure group includes magnetic resonance imaging procedures of the acoustic nerves within the central nervous system. These procedures capture multiplanar images developed from the capture of radiofrequency signals emitted by nuclei in the targeted nerve structures. Accurate coding identifies the use of magnetic resonance imaging on the acoustic nerves and supports appropriate inpatient reimbursement by reflecting the procedure performed and its clinical complexity.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
0	Body System	Central Nervous System
3	Operation	Magnetic Resonance Imaging (MRI)
C	Body Part	Acoustic Nerves

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

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Acoustic Nerves Magnetic Resonance Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
0	Body System	Central Nervous System
3	Operation	Magnetic Resonance Imaging (MRI)
C	Body Part	Acoustic Nerves

When to Use

Use a code from this group when magnetic resonance imaging is performed specifically on the acoustic nerves for diagnostic or treatment-planning purposes. These codes apply when the MRI capture and reformatting of images target the acoustic nerves as the body part of interest.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
B03CY0Z	Magnetic Resonance Imaging (MRI) of Acoustic Nerves using Other Contrast, Unenhanced and Enhanced
B03CYZZ	Magnetic Resonance Imaging (MRI) of Acoustic Nerves using Other Contrast
B03CZZZ	Magnetic Resonance Imaging (MRI) of Acoustic Nerves

Typical Clinical Scenarios

An elderly patient is admitted for sudden-onset severe unilateral hearing loss and acute vertigo after head trauma; inpatient evaluation is required to exclude an acute vestibular schwannoma or traumatic nerve injury affecting the acoustic nerve. A high-resolution MRI of the acoustic nerves is performed with and without contrast to assess nerve integrity, detect small enhancing lesions, and guide urgent management. Typical codes: B03CY0Z, B03CZZZ
A middle-aged patient with progressive unilateral sensorineural hearing loss over months and intermittent tinnitus is scheduled for inpatient preoperative imaging before planned microsurgical resection of a vestibular schwannoma. MRI of the acoustic nerves is obtained to precisely map the tumor extent, relationship to the facial nerve, and internal auditory canal anatomy for surgical planning. Typical codes: B03CYZZ, B03CZZZ
A postoperative patient develops new facial numbness and worsening imbalance several days after stereotactic radiosurgery for a known acoustic nerve neoplasm; they are admitted for concern of radiation-induced inflammation or tumor progression. An inpatient MRI of the acoustic nerves with contrast is performed to differentiate enhancing residual or recurrent tumor from posttreatment changes and to direct further therapy. Typical codes: B03CY0Z, B03CYZZ

Related Codes

B030-BRAIN-MAGNETIC-RESONANCE-IMAGING

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

B039-SELLA-TURCICA-PITUITARY-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Sella Turcica/Pituitary Gland: Procedure Code Group Overview

B03B-SPINAL-CORD-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Spinal Cord: Procedure Code Group Overview

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

3 rows

ICD-10-PCS Code	Description
B03CY0Z	Magnetic Resonance Imaging (MRI) of Acoustic Nerves using Other Contrast, Unenhanced and Enhanced
B03CYZZ	Magnetic Resonance Imaging (MRI) of Acoustic Nerves using Other Contrast
B03CZZZ	Magnetic Resonance Imaging (MRI) of Acoustic Nerves

Typical Clinical Scenarios

An elderly patient is admitted for sudden-onset severe unilateral hearing loss and acute vertigo after head trauma; inpatient evaluation is required to exclude an acute vestibular schwannoma or traumatic nerve injury affecting the acoustic nerve. A high-resolution MRI of the acoustic nerves is performed with and without contrast to assess nerve integrity, detect small enhancing lesions, and guide urgent management. Typical codes: B03CY0Z, B03CZZZ
A middle-aged patient with progressive unilateral sensorineural hearing loss over months and intermittent tinnitus is scheduled for inpatient preoperative imaging before planned microsurgical resection of a vestibular schwannoma. MRI of the acoustic nerves is obtained to precisely map the tumor extent, relationship to the facial nerve, and internal auditory canal anatomy for surgical planning. Typical codes: B03CYZZ, B03CZZZ
A postoperative patient develops new facial numbness and worsening imbalance several days after stereotactic radiosurgery for a known acoustic nerve neoplasm; they are admitted for concern of radiation-induced inflammation or tumor progression. An inpatient MRI of the acoustic nerves with contrast is performed to differentiate enhancing residual or recurrent tumor from posttreatment changes and to direct further therapy. Typical codes: B03CY0Z, B03CYZZ

Related Codes

B030-BRAIN-MAGNETIC-RESONANCE-IMAGING

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

B039-SELLA-TURCICA-PITUITARY-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Sella Turcica/Pituitary Gland: Procedure Code Group Overview

B03B-SPINAL-CORD-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Spinal Cord: Procedure Code Group Overview

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 Nerves: Procedure Code Group Overview

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

Acoustic Nerves Magnetic Resonance Imaging Procedure Overview

Code Attributes

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

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

Acoustic Nerves Magnetic Resonance 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 B03C group?

What is the operation and body system specified for B03C codes?

For what clinical purposes are B03C group codes used in inpatient documentation?

How do the individual codes within B03C differ from one another?

Why is accurate coding within the B03C group important for reimbursement?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS B03C group?

What is the operation and body system specified for B03C codes?

For what clinical purposes are B03C group codes used in inpatient documentation?

How do the individual codes within B03C differ from one another?

Why is accurate coding within the B03C group important for reimbursement?

References