0PSG4BZReposition Left Humeral Shaft with Monoplanar External Fixation Device, Percutaneous Endoscopic Approach

  • Billable / Specific Code
ICD-10-PCS 0PSG4BZ
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

0PSG4BZ is a billable ICD-10-PCS procedure code for Reposition Left Humeral Shaft with Monoplanar External Fixation Device, Percutaneous Endoscopic 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
0PSG4BZ
Billable Status
Yes — Valid for Submission
Code Describes
Reposition Left Humeral Shaft with Monoplanar External Fixation Device, Percutaneous Endoscopic Approach
Short Description
Reposition L Humeral Shaft w Monopln Ext Fix, Perc Endo
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
4BodyPartGHumeral Shaft, Left
5Approach4Percutaneous Endoscopic
6DeviceBExternal Fixation Device, Monoplanar
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
Humerus, distal
Anatomy or device term that leads here
Anatomy or device term that leads here
Anatomy or device term that leads here
Reposition, Humeral Shaft, Left
Leads to this code's table

To code reposition of the left humeral shaft, open the FY 2027 ICD-10-PCS Alphabetic Index at Reposition, then the subterms Humeral Shaft, Left. The index leads to table 0PS, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 0PSG4BZ.

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.

79.01
Closed reduction of fracture without internal fixation, humerus
Approximate match; combination (more than one code may be needed).
78.12
Application of external fixator device, humerus
Approximate match; combination (more than one code may be needed).
84.71
Application of external fixator device, monoplanar system
Approximate match; combination (more than one code may be needed).

Similar Procedure Codes

Questions About 0PSG4BZ

Is 0PSG4BZ a billable code?

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

What do the characters in 0PSG4BZ 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 G is the BodyPart (Humeral Shaft, Left); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character B is the Device (External Fixation Device, Monoplanar); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 0PSG4BZ group to?

On an inpatient stay, Reposition Left Humeral Shaft with Monoplanar External Fixation Device, Percutaneous Endoscopic Approach maps to MS-DRGs 492, 493, 494, 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 0PSG4BZ?

Under the General Equivalence Mappings, Reposition Left Humeral Shaft with Monoplanar External Fixation Device, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 79.01 (Closed reduction of fracture without internal fixation, humerus), 78.12 (Application of external fixator device, humerus), and 84.71 (Application of external fixator device, monoplanar system). The mapping is approximate, so confirm it fits the documentation.