0N854ZZDivision of Right Temporal Bone, Percutaneous Endoscopic Approach

  • Billable / Specific Code
ICD-10-PCS 0N854ZZ
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

0N854ZZ is a billable ICD-10-PCS procedure code for Division of Right Temporal Bone, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 5 MS-DRGs. The root operation Division involves cutting into a body part, without draining fluids and/or gases from the body part, in order to separate or transect a body part.

Code Identity

ICD-10-PCS Code
0N854ZZ
Billable Status
Yes — Valid for Submission
Code Describes
Division of Right Temporal Bone, Percutaneous Endoscopic Approach
Parent Code
Short Description
Division of Right Temporal Bone, Perc Endo Approach

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 SystemNHead and Facial Bones
3Operation8Division
4BodyPart5Temporal Bone, Right
5Approach4Percutaneous Endoscopic
6DeviceZNo Device
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 0N854ZZ under the General Equivalence Mappings.

12.4
Approximate match.

Similar Procedure Codes

Questions About 0N854ZZ

Is 0N854ZZ a billable code?

Yes. 0N854ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Division of Right Temporal Bone, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 0N854ZZ mean?

0N854ZZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character N is the Body System (Head and Facial Bones); the 3rd character 8 is the Operation (Division); the 4th character 5 is the BodyPart (Temporal Bone, Right); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 0N854ZZ group to?

On an inpatient stay, Division of Right Temporal Bone, Percutaneous Endoscopic Approach maps to MS-DRGs 023, 024, 025, 026, 027, with relative weights from 2.5229 to 5.7303. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 0N854ZZ?

Under the General Equivalence Mappings, Division of Right Temporal Bone, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 12.4. The mapping is approximate, so confirm it fits the documentation.