079L0ZZDrainage of Cisterna Chyli, Open Approach
- Billable / Specific Code
079L0ZZ is a billable ICD-10-PCS procedure code for Drainage of Cisterna Chyli, Open 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 Drainage involves taking or letting out fluids and/or gases from a body part. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Lymphatic 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 | 7 | Lymphatic and Hemic Systems |
| 3 | Operation | 9 | Drainage |
| 4 | BodyPart | L | Cisterna Chyli |
| 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 drainage of the cisterna chyli, open the FY 2027 ICD-10-PCS Alphabetic Index at Drainage, then the subterm Cisterna Chyli. The index leads to table 079, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 079L0ZZ.
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 079L0ZZ
Is 079L0ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Drainage of Cisterna Chyli, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 079L0ZZ mean?
The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 7 is the Body System (Lymphatic and Hemic Systems); the 3rd character 9 is the Operation (Drainage); the 4th character L is the BodyPart (Cisterna Chyli); 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 079L0ZZ group to?
On an inpatient stay, Drainage of Cisterna Chyli, Open Approach maps to MS-DRGs 163, 164, 165, 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 079L0ZZ?
Under the General Equivalence Mappings, Drainage of Cisterna Chyli, Open Approach crosswalks to ICD-9-PCS 40.62 (Fistulization of thoracic duct). The mapping is approximate, so confirm it fits the documentation.
