021009WBypass Coronary Artery, One Artery from Aorta with Autologous Venous Tissue, Open Approach
- Billable / Specific Code
021009W is a billable ICD-10-PCS procedure code for Bypass Coronary Artery, One Artery from Aorta with Autologous Venous Tissue, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 7 MS-DRGs. The root operation Bypass involves altering the route of passage of the contents of a tubular body part. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Coronary artery bypass grafts (CABG).
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 | 0 | Coronary Artery, One Artery |
| 5 | Approach | 0 | Open |
| 6 | Device | 9 | Autologous Venous Tissue |
| 7 | Qualifier | W | Aorta |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 021009W
Is 021009W a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Bypass Coronary Artery, One Artery from Aorta with Autologous Venous Tissue, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 021009W mean?
The code 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 0 is the BodyPart (Coronary Artery, One Artery); the 5th character 0 is the Approach (Open); the 6th character 9 is the Device (Autologous Venous Tissue); the 7th character W is the Qualifier (Aorta).
What MS-DRG does 021009W group to?
On an inpatient stay, Bypass Coronary Artery, One Artery from Aorta with Autologous Venous Tissue, Open Approach maps to MS-DRGs 212, 231, 232, 233, 234, 235, 236, with relative weights from 4.3377 to 11.4416. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 021009W?
Under the General Equivalence Mappings, Bypass Coronary Artery, One Artery from Aorta with Autologous Venous Tissue, Open Approach crosswalks to ICD-9-PCS 36.11 ((Aorto)coronary bypass of one coronary artery). The mapping is approximate, so confirm it fits the documentation.
