ICD-10-PCS 2027 procedure code
0S9L4ZZDrainage of Left Tarsometatarsal Joint, Percutaneous Endoscopic Approach
Short description: Drainage of Left Tarsometatarsal Joint, Perc Endo Approach
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 0S9L4ZZ
0S9L4ZZ is the ICD-10-PCS code for a drainage procedure on the left tarsometatarsal joint using a percutaneous endoscopic approach. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.
In plain terms, this corresponds to Arthrocentesis, the ICD-9-CM procedure title it maps to (81.91).
For a different body part, codes include 0S904ZZ (lumbar vertebral joint), 0S924ZZ (lumbar vertebral disc), 0S934ZZ (lumbosacral joint), 0S944ZZ (lumbosacral disc), 0S954ZZ (sacrococcygeal joint), 0S964ZZ (coccygeal joint) and 15 more.
The same procedure with a different approach is coded 0S9L0ZZ (open) and 0S9L3ZZ (percutaneous).
With a different device, use 0S9L40Z (drainage 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
- SLower Joints
- 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
- LTarsometatarsal Joint, Left
- 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
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 0S904ZZLumbar Vertebral Joint
- 0S924ZZLumbar Vertebral Disc
- 0S934ZZLumbosacral Joint
- 0S944ZZLumbosacral Disc
- 0S954ZZSacrococcygeal Joint
- 0S964ZZCoccygeal Joint
- 0S974ZZSacroiliac Joint, Right
- 0S984ZZSacroiliac Joint, Left
- 0S994ZZHip Joint, Right
- 0S9B4ZZHip Joint, Left
- 0S9C4ZZKnee Joint, Right
- 0S9D4ZZKnee Joint, Left
Different approach
Different device
Different qualifier
ICD-9-CM equivalent
Converter →- 81.91Arthrocentesisapproximate
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)
- FY2018 (effective 10/1/2017): Title revised — was “Drainage of Left Metatarsal-Tarsal Joint, Percutaneous Endoscopic Approach”
Common questions about 0S9L4ZZ
Is 0S9L4ZZ a valid ICD-10-PCS code for 2027?
- Yes. 0S9L4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 0S9L4ZZ?
- The CMS GEMs map 0S9L4ZZ to ICD-9-CM 81.91 (Arthrocentesis).