00UN0KZSupplement Acoustic Nerve with Nonautologous Tissue Substitute, Open Approach

Medical and Surgical›Central Nervous System and Cranial Nerves›Supplement
  • Billable / Specific Code
ICD-10-PCS 00UN0KZ
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

00UN0KZ is a billable ICD-10-PCS procedure code for Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 12 MS-DRGs. The root operation Supplement involves putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Meninges repair.

Code Identity

ICD-10-PCS Code
00UN0KZ
Billable Status
Yes — Valid for Submission
Code Describes
Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Open Approach
Short Description
Supplement Acoustic Nerve with Nonaut Sub, Open Approach
Parent Code
00U

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1Section0Medical and Surgical
2Body System0Central Nervous System and Cranial Nerves
3OperationUSupplement
4BodyPartNAcoustic Nerve
5Approach0Open
6DeviceKNonautologous Tissue Substitute
7QualifierZNo Qualifier

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Cochlear nerve
Anatomy or device term that leads here
Spiral ganglion
Anatomy or device term that leads here
Vestibular nerve
Anatomy or device term that leads here
Eighth cranial nerve
Anatomy or device term that leads here
Vestibulocochlear nerve
Anatomy or device term that leads here
Supplement, Nerve, Acoustic
Leads to this code's table
Scarpa's (vestibular) ganglion
Anatomy or device term that leads here
Vestibular (Scarpa's) ganglion
Anatomy or device term that leads here

To code supplement of the acoustic nerve, open the FY 2027 ICD-10-PCS Alphabetic Index at Supplement, then the subterms Nerve, Acoustic. The index leads to table 00U, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 00UN0KZ.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

CNS011
Meninges repair
Clinical domain: Central Nervous System Procedures

Code History

Replaces previously assigned code(s):
  • 00QN0ZZ — Repair Acoustic Nerve, Open Approach

Similar Procedure Codes

Questions About 00UN0KZ

Is 00UN0KZ a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in 00UN0KZ mean?

The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 0 is the Body System (Central Nervous System and Cranial Nerves); the 3rd character U is the Operation (Supplement); the 4th character N is the BodyPart (Acoustic Nerve); the 5th character 0 is the Approach (Open); the 6th character K is the Device (Nonautologous Tissue Substitute); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 00UN0KZ group to?

On an inpatient stay, Supplement Acoustic Nerve with Nonautologous Tissue Substitute, Open Approach maps to MS-DRGs 040, 041, 042, 143, 144, 145, 907, 908, 909, 957, 958, 959, with relative weights from 1.2335 to 7.5502. The MS-DRG sets the fixed Medicare payment for the stay.