03U147ZSupplement Left Internal Mammary Artery with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
- Billable / Specific Code
03U147Z is a billable ICD-10-PCS procedure code for Supplement Left Internal Mammary Artery with Autologous Tissue Substitute, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 9 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. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Vessel repair and replacement.
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 | 3 | Upper Arteries |
| 3 | Operation | U | Supplement |
| 4 | BodyPart | 1 | Internal Mammary Artery, Left |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | 7 | Autologous Tissue Substitute |
| 7 | Qualifier | Z | No Qualifier |
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 03U147Z
Is 03U147Z a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Supplement Left Internal Mammary Artery with Autologous Tissue Substitute, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 03U147Z mean?
The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 3 is the Body System (Upper Arteries); the 3rd character U is the Operation (Supplement); the 4th character 1 is the BodyPart (Internal Mammary Artery, Left); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character 7 is the Device (Autologous Tissue Substitute); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 03U147Z group to?
On an inpatient stay, Supplement Left Internal Mammary Artery with Autologous Tissue Substitute, Percutaneous Endoscopic Approach maps to MS-DRGs 252, 253, 254, 907, 908, 909, 957, 958, 959, with relative weights from 1.3810 to 7.5502. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 03U147Z?
Under the General Equivalence Mappings, Supplement Left Internal Mammary Artery with Autologous Tissue Substitute, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 39.56 (Repair of blood vessel with tissue patch graft). The mapping is approximate, so confirm it fits the documentation.
