0UNM0ZZRelease Vulva, Open Approach
- Billable / Specific Code
0UNM0ZZ is a billable ICD-10-PCS procedure code for Release Vulva, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 8 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 Female reproductive system 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 | U | Female Reproductive System |
| 3 | Operation | N | Release |
| 4 | BodyPart | M | Vulva |
| 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:
To code release of the vulva, open the FY 2027 ICD-10-PCS Alphabetic Index at Release, then the subterm Vulva. The index leads to table 0UN, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 0UNM0ZZ.
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 0UNM0ZZ
Is 0UNM0ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Release Vulva, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 0UNM0ZZ mean?
The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character U is the Body System (Female Reproductive System); the 3rd character N is the Operation (Release); the 4th character M is the BodyPart (Vulva); 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 0UNM0ZZ group to?
On an inpatient stay, Release Vulva, Open Approach maps to MS-DRGs 746, 747, 907, 908, 909, 957, 958, 959, with relative weights from 0.8671 to 7.5502. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 0UNM0ZZ?
Under the General Equivalence Mappings, Release Vulva, Open Approach crosswalks to ICD-9-PCS 71.01 (Lysis of vulvar adhesions). The mapping is approximate, so confirm it fits the documentation.
