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ICD-10-PCS 2027 procedure code

0SSK04ZReposition Right Tarsometatarsal Joint with Internal Fixation Device, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Reposition R Tarsometatars Jt with Int Fix, Open 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 0SSK04Z

0SSK04Z is the ICD-10-PCS code for a reposition procedure on the right tarsometatarsal joint using an open approach with internal fixation device. In ICD-10-PCS, reposition means moving to its normal location, or other suitable location, all or a portion of a body part.

In plain terms, this corresponds to open reduction of dislocation of foot and toe, the ICD-9-CM procedure title it maps to (79.88).

For a different body part, codes include 0SS004Z (lumbar vertebral joint), 0SS304Z (lumbosacral joint), 0SS504Z (sacrococcygeal joint), 0SS604Z (coccygeal joint), 0SS704Z (right sacroiliac joint), 0SS804Z (left sacroiliac joint) and 13 more.

The same procedure with a different approach is coded 0SSK34Z (percutaneous), 0SSK44Z (percutaneous endoscopic) and 0SSKX4Z (external).

With a different device, use 0SSK05Z (external fixation device) and 0SSK0ZZ (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 503 (Foot Procedures with MCC), DRG 504 (Foot Procedures with CC), DRG 505 (Foot 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 “Foot Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

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
SReposition

Moving to its normal location, or other suitable location, all or a portion of a body part

The body part is moved to a new location from an abnormal location, or from a normal location where it is not functioning correctly. The body part may or may not be cut out or off to be moved to the new location

Includes: Reposition of undescended testicle, fracture reduction

4. Body Part
KTarsometatarsal Joint, Right
5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
4Internal Fixation Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

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 · Foot Procedures

ICD-9-CM equivalent

Converter →
  • 79.88Open reduction of dislocation of foot and toeapproximate

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)
  • FY2018 (effective 10/1/2017): Title revised — was “Reposition Right Metatarsal-Tarsal Joint with Internal Fixation Device, Open Approach”

Common questions about 0SSK04Z

Is 0SSK04Z a valid ICD-10-PCS code for 2027?

Yes. 0SSK04Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0SSK04Z an O.R. procedure?

Yes. 0SSK04Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0SSK04Z group to?

Depending on the principal diagnosis, 0SSK04Z can group to MS-DRG 503, MS-DRG 504, MS-DRG 505, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 0SSK04Z?

The CMS GEMs map 0SSK04Z to ICD-9-CM 79.88 (Open reduction of dislocation of foot and toe).