09N04ZZRelease Right External Ear, Percutaneous Endoscopic Approach
- Billable / Specific Code
09N04ZZ is a billable ICD-10-PCS procedure code for Release Right External Ear, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 12 MS-DRGs. The root operation Release involves freeing a body part from an abnormal physical constraint by cutting or by the use of force.
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 | N | Release |
| 4 | BodyPart | 0 | External Ear, Right |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 09N04ZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 09N04ZZ
Is 09N04ZZ a billable code?
Yes. 09N04ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Release Right External Ear, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 09N04ZZ mean?
09N04ZZ 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 N is the Operation (Release); the 4th character 0 is the BodyPart (External Ear, 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 09N04ZZ group to?
On an inpatient stay, Release Right External Ear, Percutaneous Endoscopic Approach maps to MS-DRGs 143, 144, 145, 579, 580, 581, 907, 908, 909, 957, 958, 959, with relative weights from 1.2023 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 09N04ZZ?
Under the General Equivalence Mappings, Release Right External Ear, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 18.9. The mapping is approximate, so confirm it fits the documentation.
