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ICD-10-PCS 2027 procedure code

0M9R4ZZDrainage of Left Ankle Bursa and Ligament, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Drainage of L Ankle Bursa/Lig, 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 0M9R4ZZ

0M9R4ZZ is the ICD-10-PCS code for a drainage procedure on the left ankle bursa and ligament 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 aspiration of bursa, the ICD-9-CM procedure title it maps to (83.94).

For a different body part, codes include 0M904ZZ (head and neck bursa and ligament), 0M914ZZ (right shoulder bursa and ligament), 0M924ZZ (left shoulder bursa and ligament), 0M934ZZ (right elbow bursa and ligament), 0M944ZZ (left elbow bursa and ligament), 0M954ZZ (right wrist bursa and ligament) and 21 more.

The same procedure with a different approach is coded 0M9R0ZZ (open) and 0M9R3ZZ (percutaneous).

With a different device, use 0M9R40Z (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
MBursae and Ligaments
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
RAnkle Bursa and Ligament, Left

Includes: Calcaneofibular ligament; Deltoid ligament; Ligament of the lateral malleolus; Talofibular ligament

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

ICD-9-CM equivalent

Converter →
  • 83.94Aspiration of bursaapproximate

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 0M9R4ZZ

Is 0M9R4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0M9R4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0M9R4ZZ?

The CMS GEMs map 0M9R4ZZ to ICD-9-CM 83.94 (Aspiration of bursa).