0UN18ZZRelease Left Ovary, Via Natural or Artificial Opening Endoscopic
- Billable / Specific Code
0UN18ZZ is a billable ICD-10-PCS procedure code for Release Left Ovary, Via Natural or Artificial Opening Endoscopic. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 11 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 | 1 | Ovary, Left |
| 5 | Approach | 8 | Via Natural or Artificial Opening Endoscopic |
| 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 left ovary, open the FY 2027 ICD-10-PCS Alphabetic Index at Release, then the subterms Ovary, Left. The index leads to table 0UN, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 0UN18ZZ.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Code History
- 0UN14ZZ — Release Left Ovary, Percutaneous Endoscopic Approach
Similar Procedure Codes
Questions About 0UN18ZZ
Is 0UN18ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Release Left Ovary, Via Natural or Artificial Opening Endoscopic on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 0UN18ZZ 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 1 is the BodyPart (Ovary, Left); the 5th character 8 is the Approach (Via Natural or Artificial Opening Endoscopic); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 0UN18ZZ group to?
On an inpatient stay, Release Left Ovary, Via Natural or Artificial Opening Endoscopic maps to MS-DRGs 731, 732, 733, 742, 743, 907, 908, 909, 957, 958, 959, with relative weights from 1.2969 to 7.5502. The MS-DRG sets the fixed Medicare payment for the stay.
