ICD-10-PCS 2027 procedure code
0SSFX4ZReposition Right Ankle Joint with Internal Fixation Device, External Approach
Short description: Reposition Right Ankle Joint with Int Fix, Extern 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 0SSFX4Z
0SSFX4Z is the ICD-10-PCS code for a reposition procedure on the right ankle joint using an external 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 closed reduction of dislocation of ankle, the ICD-9-CM procedure title it maps to (79.77).
For a different body part, codes include 0SS0X4Z (lumbar vertebral joint), 0SS3X4Z (lumbosacral joint), 0SS5X4Z (sacrococcygeal joint), 0SS6X4Z (coccygeal joint), 0SS7X4Z (right sacroiliac joint), 0SS8X4Z (left sacroiliac joint) and 13 more.
The same procedure with a different approach is coded 0SSF04Z (open), 0SSF34Z (percutaneous) and 0SSF44Z (percutaneous endoscopic).
With a different device, use 0SSFX5Z (external fixation device) and 0SSFXZZ (no 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
- 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
- FAnkle Joint, Right
- 5. Approach
- XExternal
Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane
- 6. Device
- 4Internal Fixation Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 0SS0X4ZLumbar Vertebral Joint
- 0SS3X4ZLumbosacral Joint
- 0SS5X4ZSacrococcygeal Joint
- 0SS6X4ZCoccygeal Joint
- 0SS7X4ZSacroiliac Joint, Right
- 0SS8X4ZSacroiliac Joint, Left
- 0SS9X4ZHip Joint, Right
- 0SSBX4ZHip Joint, Left
- 0SSCX4ZKnee Joint, Right
- 0SSDX4ZKnee Joint, Left
- 0SSGX4ZAnkle Joint, Left
- 0SSHX4ZTarsal Joint, Right
Different approach
Different device
ICD-9-CM equivalent
Converter →- 79.77Closed reduction of dislocation of ankleapproximate
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)
- No changes since FY2016.
Common questions about 0SSFX4Z
Is 0SSFX4Z a valid ICD-10-PCS code for 2027?
- Yes. 0SSFX4Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 0SSFX4Z?
- The CMS GEMs map 0SSFX4Z to ICD-9-CM 79.77 (Closed reduction of dislocation of ankle).