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ICD-10-PCS 2027 procedure code

0L9Q4ZZDrainage of Right Knee Tendon, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Drainage of Right Knee Tendon, 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 0L9Q4ZZ

0L9Q4ZZ is the ICD-10-PCS code for a drainage procedure on the right knee tendon 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 exploration of tendon sheath, the ICD-9-CM procedure title it maps to (83.01).

For a different body part, codes include 0L904ZZ (head and neck tendon), 0L914ZZ (right shoulder tendon), 0L924ZZ (left shoulder tendon), 0L934ZZ (right upper arm tendon), 0L944ZZ (left upper arm tendon), 0L954ZZ (right lower arm and wrist tendon) and 21 more.

The same procedure with a different approach is coded 0L9Q0ZZ (open) and 0L9Q3ZZ (percutaneous).

With a different device, use 0L9Q40Z (drainage device).

It is an operating-room procedure in the MS-DRG logic for DRG 500 (Soft Tissue Procedures with MCC), DRG 501 (Soft Tissue Procedures with CC), DRG 502 (Soft Tissue 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 “Soft Tissue Procedures” and “Other O.R. Procedures for Injuries”.

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
LTendons
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
QKnee Tendon, Right
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 device

Different qualifier

MS-DRG v44.0 grouping

All DRGs →

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

MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Soft Tissue Procedures

ICD-9-CM equivalent

Converter →
  • 83.01Exploration of tendon sheathapproximate

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 0L9Q4ZZ

Is 0L9Q4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0L9Q4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0L9Q4ZZ an O.R. procedure?

Yes. 0L9Q4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0L9Q4ZZ group to?

Depending on the principal diagnosis, 0L9Q4ZZ can group to MS-DRG 500, MS-DRG 501, MS-DRG 502, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 0L9Q4ZZ?

The CMS GEMs map 0L9Q4ZZ to ICD-9-CM 83.01 (Exploration of tendon sheath).