05100ZYBypass Azygos Vein to Upper Vein, Open Approach
- Billable / Specific Code
05100ZY is a billable ICD-10-PCS procedure code for Bypass Azygos Vein to Upper Vein, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 9 MS-DRGs. The root operation Bypass involves altering the route of passage of the contents of a tubular 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 | 5 | Upper Veins |
| 3 | Operation | 1 | Bypass |
| 4 | BodyPart | 0 | Azygos Vein |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Y | Upper Vein |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 05100ZY under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 05100ZY
Is 05100ZY a billable code?
Yes. 05100ZY is a complete seven-character ICD-10-PCS code, specific enough to report Bypass Azygos Vein to Upper Vein, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 05100ZY mean?
05100ZY breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 5 is the Body System (Upper Veins); the 3rd character 1 is the Operation (Bypass); the 4th character 0 is the BodyPart (Azygos Vein); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character Y is the Qualifier (Upper Vein).
What MS-DRG does 05100ZY group to?
On an inpatient stay, Bypass Azygos Vein to Upper Vein, Open Approach maps to MS-DRGs 270, 271, 272, 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 05100ZY?
Under the General Equivalence Mappings, Bypass Azygos Vein to Upper Vein, Open Approach crosswalks to ICD-9-PCS 39.23. The mapping is approximate, so confirm it fits the documentation.
