09TA0ZZResection of Left Auditory Ossicle, Open Approach

  • Billable / Specific Code
ICD-10-PCS 09TA0ZZ
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

09TA0ZZ is a billable ICD-10-PCS procedure code for Resection of Left Auditory Ossicle, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRGs 143, 144, 145. The root operation Resection involves cutting out or off, without replacement, all of a body part. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under ENT excision (excluding nasal passage, sinuses, tongue, salivary glands, larynx).

Code Identity

ICD-10-PCS Code
09TA0ZZ
Billable Status
Yes — Valid for Submission
Code Describes
Resection of Left Auditory Ossicle, Open Approach
Short Description
Resection of Left Auditory Ossicle, Open Approach
Same as the full description in the CMS dataset.
Parent Code

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 System9Ear, Nose, Sinus
3OperationTResection
4BodyPartAAuditory Ossicle, Left
5Approach0Open
6DeviceZNo Device
7QualifierZNo Qualifier

In the ICD-10-PCS Alphabetic Index

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

Anatomy or device term that leads here
Anatomy or device term that leads here
Anatomy or device term that leads here
Resection, Auditory Ossicle, Left
Leads to this code's table

To code resection of the left auditory ossicle, open the FY 2027 ICD-10-PCS Alphabetic Index at Resection, then the subterms Auditory Ossicle, Left. The index leads to table 09T, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 09TA0ZZ.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

ENT012
ENT excision (excluding nasal passage, sinuses, tongue, salivary glands, larynx)
Clinical domain: Ear, Nose, and Throat Procedures

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.

19.19
Other stapedectomy
Approximate match.
19.3
Other operations on ossicular chain
Approximate match.

Code History

Replaced in the FY 2027 code set by:
  • 09TA8ZZ — Resection of Left Auditory Ossicle, Endo

Similar Procedure Codes

Questions About 09TA0ZZ

Is 09TA0ZZ a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Resection of Left Auditory Ossicle, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in 09TA0ZZ mean?

The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 9 is the Body System (Ear, Nose, Sinus); the 3rd character T is the Operation (Resection); the 4th character A is the BodyPart (Auditory Ossicle, Left); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 09TA0ZZ group to?

On an inpatient stay, Resection of Left Auditory Ossicle, Open Approach maps to MS-DRGs 143, 144, 145, with relative weights from 1.2335 to 3.8500. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 09TA0ZZ?

Under the General Equivalence Mappings, Resection of Left Auditory Ossicle, Open Approach crosswalks to ICD-9-PCS 19.19 (Other stapedectomy) and 19.3 (Other operations on ossicular chain). The mapping is approximate, so confirm it fits the documentation.