027X0ZZDilation of Thoracic Aorta, Ascending/Arch, Open Approach
- Billable / Specific Code
027X0ZZ is a billable ICD-10-PCS procedure code for Dilation of Thoracic Aorta, Ascending/Arch, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 252, 253, 254. The root operation Dilation involves expanding an orifice or the lumen 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 | 7 | Dilation |
| 4 | BodyPart | X | Thoracic Aorta, Ascending/Arch |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 027X0ZZ under the General Equivalence Mappings.
Code History
- 027W0ZZ — Dilation of Thoracic Aorta, Descending, Open Approach
Similar Procedure Codes
Questions About 027X0ZZ
Is 027X0ZZ a billable code?
Yes. 027X0ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Dilation of Thoracic Aorta, Ascending/Arch, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 027X0ZZ mean?
027X0ZZ 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 7 is the Operation (Dilation); the 4th character X is the BodyPart (Thoracic Aorta, Ascending/Arch); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 027X0ZZ group to?
On an inpatient stay, Dilation of Thoracic Aorta, Ascending/Arch, Open Approach maps to MS-DRGs 252, 253, 254, with relative weights from 1.7817 to 3.4883. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 027X0ZZ?
Under the General Equivalence Mappings, Dilation of Thoracic Aorta, Ascending/Arch, Open Approach crosswalks to ICD-9-PCS 39.50 and 40. The mapping is approximate, so confirm it fits the documentation.
