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ICD-10-PCS 2027 procedure code

0Q9R4ZZDrainage of Left Toe Phalanx, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Drainage of Left Toe Phalanx, 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 0Q9R4ZZ

0Q9R4ZZ is the ICD-10-PCS code for a drainage procedure on the left toe phalanx 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 other incision of bone without division, other bones, the ICD-9-CM procedure title it maps to (77.19).

For a different body part, codes include 0Q904ZZ (lumbar vertebra), 0Q914ZZ (sacrum), 0Q924ZZ (right pelvic bone), 0Q934ZZ (left pelvic bone), 0Q944ZZ (right acetabulum), 0Q954ZZ (left acetabulum) and 18 more.

The same procedure with a different approach is coded 0Q9R0ZZ (open) and 0Q9R3ZZ (percutaneous).

With a different device, use 0Q9R40Z (drainage device).

It is an operating-room procedure in the MS-DRG logic for DRG 495 (Local Excision and Removal of Internal Fixation Devices Except Hip and Femur with MCC), DRG 496 (Local Excision and Removal of Internal Fixation Devices Except Hip and Femur with CC) and DRG 497 (Local Excision and Removal of Internal Fixation Devices Except Hip and Femur without CC/MCC), under the surgical category “Local Excision and Removal of Internal Fixation Devices Except Hip and Femur”.

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
QLower Bones
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
RToe Phalanx, 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 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.

ICD-9-CM equivalent

Converter →
  • 77.19Other incision of bone without division, other bonesapproximate

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 0Q9R4ZZ

Is 0Q9R4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0Q9R4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0Q9R4ZZ an O.R. procedure?

Yes. 0Q9R4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0Q9R4ZZ group to?

Depending on the principal diagnosis, 0Q9R4ZZ can group to MS-DRG 495, MS-DRG 496 and MS-DRG 497.

What is the ICD-9 procedure code for 0Q9R4ZZ?

The CMS GEMs map 0Q9R4ZZ to ICD-9-CM 77.19 (Other incision of bone without division, other bones).