01N43ZZRelease Ulnar Nerve, Percutaneous Approach
- Billable / Specific Code
01N43ZZ is a billable ICD-10-PCS procedure code for Release Ulnar Nerve, Percutaneous 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 | 1 | Peripheral Nervous System |
| 3 | Operation | N | Release |
| 4 | BodyPart | 4 | Ulnar Nerve |
| 5 | Approach | 3 | Percutaneous |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 01N43ZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 01N43ZZ
Is 01N43ZZ a billable code?
Yes. 01N43ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Release Ulnar Nerve, Percutaneous Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 01N43ZZ mean?
01N43ZZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 1 is the Body System (Peripheral Nervous System); the 3rd character N is the Operation (Release); the 4th character 4 is the BodyPart (Ulnar Nerve); the 5th character 3 is the Approach (Percutaneous); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 01N43ZZ group to?
On an inpatient stay, Release Ulnar Nerve, Percutaneous Approach maps to MS-DRGs 040, 041, 042, 515, 516, 517, 907, 908, 909, 957, 958, 959, with relative weights from 1.3127 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 01N43ZZ?
Under the General Equivalence Mappings, Release Ulnar Nerve, Percutaneous Approach crosswalks to ICD-9-PCS 44.9. The mapping is approximate, so confirm it fits the documentation.
