0PSS35ZReposition Left Thumb Phalanx with External Fixation Device, Percutaneous Approach

  • Billable / Specific Code
ICD-10-PCS 0PSS35Z
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

0PSS35Z is a billable ICD-10-PCS procedure code for Reposition Left Thumb Phalanx with External Fixation Device, Percutaneous Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 9 MS-DRGs. The root operation Reposition involves moving to its normal location, or other suitable location, all or a portion of a body part. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Fixation of upper extremity bones.

Code Identity

ICD-10-PCS Code
0PSS35Z
Billable Status
Yes — Valid for Submission
Code Describes
Reposition Left Thumb Phalanx with External Fixation Device, Percutaneous Approach
Short Description
Reposition Left Thumb Phalanx with Ext Fix, Perc Approach
Parent Code

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1Section0Medical and Surgical
2Body SystemPUpper Bones
3OperationSReposition
4BodyPartSThumb Phalanx, Left
5Approach3Percutaneous
6Device5External Fixation Device
7QualifierZNo Qualifier

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Anatomy or device term that leads here
Reposition, Phalanx, Thumb, Left
Leads to this code's table

To code reposition of the left thumb phalanx, open the FY 2027 ICD-10-PCS Alphabetic Index at Reposition, then the subterms Phalanx, Thumb, Left. The index leads to table 0PS, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 0PSS35Z.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

MST009
Fixation of upper extremity bones
Clinical domain: Musculoskeletal, Subcutaneous Tissue, and Fascia Procedures

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.

79.04
Closed reduction of fracture without internal fixation, phalanges of hand
Approximate match; combination (more than one code may be needed).
78.19
Application of external fixator device, other bones
Approximate match; combination (more than one code may be needed).

Similar Procedure Codes

Questions About 0PSS35Z

Is 0PSS35Z a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Reposition Left Thumb Phalanx with External Fixation Device, Percutaneous Approach on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in 0PSS35Z mean?

The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character P is the Body System (Upper Bones); the 3rd character S is the Operation (Reposition); the 4th character S is the BodyPart (Thumb Phalanx, Left); the 5th character 3 is the Approach (Percutaneous); the 6th character 5 is the Device (External Fixation Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 0PSS35Z group to?

On an inpatient stay, Reposition Left Thumb Phalanx with External Fixation Device, Percutaneous Approach maps to MS-DRGs 515, 516, 517, 907, 908, 909, 957, 958, 959, with relative weights from 1.3810 to 7.5502. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 0PSS35Z?

Under the General Equivalence Mappings, Reposition Left Thumb Phalanx with External Fixation Device, Percutaneous Approach crosswalks to ICD-9-PCS 79.04 (Closed reduction of fracture without internal fixation, phalanges of hand) and 78.19 (Application of external fixator device, other bones). The mapping is approximate, so confirm it fits the documentation.