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ICD-10-PCS 2027 procedure code

079L40ZDrainage of Cisterna Chyli with Drainage Device, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Drain of Cisterna Chyli with Drain Dev, Perc Endo Approach

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 079L40Z

079L40Z is the ICD-10-PCS code for a drainage procedure on the cisterna chyli using a percutaneous endoscopic approach with drainage device. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to Cannulation of thoracic duct, the ICD-9-CM procedure title it maps to (40.61).

For a different body part, codes include 079040Z (lymphatic, head), 079140Z (lymphatic, right neck), 079240Z (lymphatic, left neck), 079340Z (lymphatic, right upper extremity), 079440Z (lymphatic, left upper extremity), 079540Z (lymphatic, right axillary) and 15 more.

The same procedure with a different approach is coded 079L00Z (open), 079L30Z (percutaneous) and 079L80Z (via natural or artificial opening endoscopic).

With a different device, use 079L4ZZ (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 163 (Major Chest Procedures with MCC), DRG 164 (Major Chest Procedures with CC), DRG 165 (Major Chest Procedures without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Major Chest Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
7Lymphatic and Hemic Systems
3. Operation
9Drainage

Taking or letting out fluids and/or gases from a body part

The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies

Includes: Thoracentesis, incision and drainage

4. Body Part
LCisterna Chyli

Includes: Intestinal lymphatic trunk; Lumbar lymphatic trunk

5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different device

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 40.61Cannulation of thoracic ductapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 079L40Z

Is 079L40Z a valid ICD-10-PCS code for 2027?

Yes. 079L40Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 079L40Z an O.R. procedure?

Yes. 079L40Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 079L40Z group to?

Depending on the principal diagnosis, 079L40Z can group to MS-DRG 163, MS-DRG 164, MS-DRG 165, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 079L40Z?

The CMS GEMs map 079L40Z to ICD-9-CM 40.61 (Cannulation of thoracic duct).