0RG04AJFusion of Occipital-cervical Joint with Interbody Fusion Device, Posterior Approach, Anterior Column, Percutaneous Endoscopic Approach
- Billable / Specific Code
0RG04AJ is a billable ICD-10-PCS procedure code for Fusion of Occipital-cervical Joint with Interbody Fusion Device, Posterior Approach, Anterior Column, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 12 MS-DRGs. The root operation Fusion involves joining together portions of an articular body part rendering the articular body part immobile. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Spine fusion.
Code Identity
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.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical |
| 2 | Body System | R | Upper Joints |
| 3 | Operation | G | Fusion |
| 4 | BodyPart | 0 | Occipital-cervical Joint |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | A | Interbody Fusion Device |
| 7 | Qualifier | J | Posterior Approach, Anterior Column |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code fusion of the occipital-cervical, open the FY 2027 ICD-10-PCS Alphabetic Index at Fusion, then the subterm Occipital-cervical. The index leads to table 0RG, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 0RG04AJ.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 0RG04AJ
Is 0RG04AJ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Fusion of Occipital-cervical Joint with Interbody Fusion Device, Posterior Approach, Anterior Column, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 0RG04AJ mean?
The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character R is the Body System (Upper Joints); the 3rd character G is the Operation (Fusion); the 4th character 0 is the BodyPart (Occipital-cervical Joint); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character A is the Device (Interbody Fusion Device); the 7th character J is the Qualifier (Posterior Approach, Anterior Column).
What MS-DRG does 0RG04AJ group to?
On an inpatient stay, Fusion of Occipital-cervical Joint with Interbody Fusion Device, Posterior Approach, Anterior Column, Percutaneous Endoscopic Approach maps to MS-DRGs 028, 029, 030, 471, 472, 473, 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 0RG04AJ?
Under the General Equivalence Mappings, Fusion of Occipital-cervical Joint with Interbody Fusion Device, Posterior Approach, Anterior Column, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 81.01 (Atlas-axis spinal fusion) and 84.51 (Insertion of interbody spinal fusion device). The mapping is approximate, so confirm it fits the documentation.
