04NB0ZZRelease Inferior Mesenteric Artery, Open Approach
- Billable / Specific Code
04NB0ZZ is a billable ICD-10-PCS procedure code for Release Inferior Mesenteric Artery, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 6 MS-DRGs. The root operation Release involves freeing a body part from an abnormal physical constraint by cutting or by the use of force. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Artery, vein, and great vessel procedures, NEC.
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 | 4 | Lower Arteries |
| 3 | Operation | N | Release |
| 4 | BodyPart | B | Inferior Mesenteric Artery |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 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 04NB0ZZ
Is 04NB0ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Release Inferior Mesenteric Artery, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 04NB0ZZ mean?
The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 4 is the Body System (Lower Arteries); the 3rd character N is the Operation (Release); the 4th character B is the BodyPart (Inferior Mesenteric Artery); 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 04NB0ZZ group to?
On an inpatient stay, Release Inferior Mesenteric Artery, Open Approach maps to MS-DRGs 252, 253, 254, 356, 357, 358, with relative weights from 1.4884 to 4.3380. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 04NB0ZZ?
Under the General Equivalence Mappings, Release Inferior Mesenteric Artery, Open Approach crosswalks to ICD-9-PCS 39.91 (Freeing of vessel). The mapping is approximate, so confirm it fits the documentation.
