09TB4ZZResection of Right Mastoid Sinus, Percutaneous Endoscopic Approach
- Billable / Specific Code
09TB4ZZ is a billable ICD-10-PCS procedure code for Resection of Right Mastoid Sinus, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRGs 135, 136. 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 Nasal and sinus excision.
Code Identity
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.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical |
| 2 | Body System | 9 | Ear, Nose, Sinus |
| 3 | Operation | T | Resection |
| 4 | BodyPart | B | Mastoid Sinus, Right |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code resection of the right mastoid sinus, open the FY 2027 ICD-10-PCS Alphabetic Index at Resection, then the subterms Sinus, Mastoid, Right. The index leads to table 09T, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 09TB4ZZ.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Code History
- 09TB8ZZ — Resection of Right Mastoid Sinus, Endo
Similar Procedure Codes
Questions About 09TB4ZZ
Is 09TB4ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Resection of Right Mastoid Sinus, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 09TB4ZZ 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 B is the BodyPart (Mastoid Sinus, 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 09TB4ZZ group to?
On an inpatient stay, Resection of Right Mastoid Sinus, Percutaneous Endoscopic Approach maps to MS-DRGs 135, 136, with relative weights from 1.0615 to 2.1793. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 09TB4ZZ?
Under the General Equivalence Mappings, Resection of Right Mastoid Sinus, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 20.42 (Radical mastoidectomy). The mapping is approximate, so confirm it fits the documentation.
