01U40JZSupplement Ulnar Nerve with Synthetic Substitute, Open Approach
- Billable / Specific Code
01U40JZ is a billable ICD-10-PCS procedure code for Supplement Ulnar Nerve with Synthetic Substitute, Open 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 Supplement involves putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part.
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 | U | Supplement |
| 4 | BodyPart | 4 | Ulnar Nerve |
| 5 | Approach | 0 | Open |
| 6 | Device | J | Synthetic Substitute |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 01U40JZ under the General Equivalence Mappings.
Code History
- 01Q40ZZ — Repair Ulnar Nerve, Open Approach
Similar Procedure Codes
Questions About 01U40JZ
Is 01U40JZ a billable code?
Yes. 01U40JZ is a complete seven-character ICD-10-PCS code, specific enough to report Supplement Ulnar Nerve with Synthetic Substitute, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 01U40JZ mean?
01U40JZ 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 U is the Operation (Supplement); the 4th character 4 is the BodyPart (Ulnar Nerve); the 5th character 0 is the Approach (Open); the 6th character J is the Device (Synthetic Substitute); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 01U40JZ group to?
On an inpatient stay, Supplement Ulnar Nerve with Synthetic Substitute, Open 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 01U40JZ?
Under the General Equivalence Mappings, Supplement Ulnar Nerve with Synthetic Substitute, Open Approach crosswalks to ICD-9-PCS 45. The mapping is approximate, so confirm it fits the documentation.
