ICD-10-PCS 2027 procedure code
079M30ZDrainage of Thymus with Drainage Device, Percutaneous Approach
Short description: Drainage of Thymus with Drainage Device, Perc 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 079M30Z
079M30Z is the ICD-10-PCS code for a drainage procedure on the thymus using a percutaneous 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 other miscellaneous procedures, the ICD-9-CM procedure title it maps to (99.99).
For a different body part, codes include 079030Z (lymphatic, head), 079130Z (lymphatic, right neck), 079230Z (lymphatic, left neck), 079330Z (lymphatic, right upper extremity), 079430Z (lymphatic, left upper extremity), 079530Z (lymphatic, right axillary) and 15 more.
The same procedure with a different approach is coded 079M00Z (open) and 079M40Z (percutaneous endoscopic).
With a different device, use 079M3ZZ (no device).
It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.
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
- MThymus
Includes: Thymus gland
- 5. Approach
- 3Percutaneous
Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach 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 body part
- 079030ZLymphatic, Head
- 079130ZLymphatic, Right Neck
- 079230ZLymphatic, Left Neck
- 079330ZLymphatic, Right Upper Extremity
- 079430ZLymphatic, Left Upper Extremity
- 079530ZLymphatic, Right Axillary
- 079630ZLymphatic, Left Axillary
- 079730ZLymphatic, Thorax
- 079830ZLymphatic, Internal Mammary, Right
- 079930ZLymphatic, Internal Mammary, Left
- 079B30ZLymphatic, Mesenteric
- 079C30ZLymphatic, Pelvis
Different approach
Different device
ICD-9-CM equivalent
Converter →- 99.99Other miscellaneous proceduresapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 079M30Z
Is 079M30Z a valid ICD-10-PCS code for 2027?
- Yes. 079M30Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 079M30Z?
- The CMS GEMs map 079M30Z to ICD-9-CM 99.99 (Other miscellaneous procedures).