021P4ZABypass Pulmonary Trunk from Innominate Artery with No Device, Percutaneous Endoscopic Approach
- Billable / Specific Code
021P4ZA is a billable ICD-10-PCS procedure code for Bypass Pulmonary Trunk from Innominate Artery with No Device, 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 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 | 2 | Heart and Great Vessels |
| 3 | Operation | 1 | Bypass |
| 4 | BodyPart | P | Pulmonary Trunk |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | Z | No Device |
| 7 | Qualifier | A | Innominate Artery |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 021P4ZA under the General Equivalence Mappings.
Code History
- 02QP4ZZ — Repair Pulmonary Trunk, Percutaneous Endoscopic Approach
Similar Procedure Codes
Questions About 021P4ZA
Is 021P4ZA a billable code?
Yes. 021P4ZA is a complete seven-character ICD-10-PCS code, specific enough to report Bypass Pulmonary Trunk from Innominate Artery with No Device, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 021P4ZA mean?
021P4ZA breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 2 is the Body System (Heart and Great Vessels); the 3rd character 1 is the Operation (Bypass); the 4th character P is the BodyPart (Pulmonary Trunk); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character Z is the Device (No Device); the 7th character A is the Qualifier (Innominate Artery).
What MS-DRG does 021P4ZA group to?
On an inpatient stay, Bypass Pulmonary Trunk from Innominate Artery with No Device, Percutaneous Endoscopic Approach maps to MS-DRGs 166, 167, 168, 252, 253, 254, 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 021P4ZA?
Under the General Equivalence Mappings, Bypass Pulmonary Trunk from Innominate Artery with No Device, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 39.0. The mapping is approximate, so confirm it fits the documentation.
