01N50ZZRelease Median Nerve, Open Approach
- Billable / Specific Code
01N50ZZ is a billable ICD-10-PCS procedure code for Release Median Nerve, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 8 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 | 5 | Median Nerve |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 01N50ZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 01N50ZZ
Is 01N50ZZ a billable code?
Yes. 01N50ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Release Median Nerve, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 01N50ZZ mean?
01N50ZZ 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 5 is the BodyPart (Median Nerve); 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 01N50ZZ group to?
On an inpatient stay, Release Median Nerve, Open Approach maps to MS-DRGs 040, 041, 042, 513, 514, 957, 958, 959, with relative weights from 1.0223 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 01N50ZZ?
Under the General Equivalence Mappings, Release Median Nerve, Open Approach crosswalks to ICD-9-PCS 44.3. The mapping is approximate, so confirm it fits the documentation.
