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ICD-10-PCS 2027 procedure code

0RG04A0Fusion of Occipital-cervical Joint with Interbody Fusion Device, Anterior Approach, Anterior Column, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Fusion Occip Jt w Intbd Fus Dev, Ant Appr A Col, Perc Endo

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 0RG04A0

0RG04A0 is the ICD-10-PCS code for a fusion procedure on the occipital-cervical joint using a percutaneous endoscopic approach with interbody fusion device (qualifier: anterior approach, anterior column). In ICD-10-PCS, fusion means joining together portions of an articular body part rendering the articular body part immobile.

In plain terms, this corresponds to atlas-axis spinal fusion and insertion of interbody spinal fusion device, the ICD-9-CM procedure titles it maps to (81.01 and 84.51).

For a different body part, codes include 0RG14A0 (cervical vertebral joint), 0RG24A0 (cervical vertebral joints, 2 or more), 0RG44A0 (cervicothoracic vertebral joint), 0RG64A0 (thoracic vertebral joint), 0RG74A0 (thoracic vertebral joints, 2 to 7), 0RG84A0 (thoracic vertebral joints, 8 or more) and 1 more.

The same procedure with a different approach is coded 0RG00A0 (open) and 0RG03A0 (percutaneous).

With a different device, use 0RG0470 (autologous tissue substitute), 0RG04J0 (synthetic substitute) and 0RG04K0 (nonautologous tissue substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 028 (Spinal Procedures with MCC), DRG 029 (Spinal Procedures with CC or Spinal Neurostimulators), DRG 030 (Spinal Procedures without CC/MCC), DRG 471 (Cervical Spinal Fusion with MCC), DRG 472 (Cervical Spinal Fusion with CC) and DRG 473 (Cervical Spinal Fusion without CC/MCC), under the surgical categories “Spinal Procedures”, “Cervical Spinal Fusion”, “Other O.R. Procedures for Injuries” and 1 more.

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
RUpper Joints
3. Operation
GFusion

Joining together portions of an articular body part rendering the articular body part immobile

The body part is joined together by fixation device, bone graft, or other means

Includes: Spinal fusion, ankle arthrodesis

4. Body Part
0Occipital-cervical Joint
5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
AInterbody Fusion Device
7. Qualifier
0Anterior Approach, Anterior Column

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 · Cervical Spinal Fusion

ICD-9-CM equivalent

Converter →
  • 81.01Atlas-axis spinal fusionapproximate, combination
  • 84.51Insertion of interbody spinal fusion deviceapproximate, combination

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)
  • No changes since FY2016.

Common questions about 0RG04A0

Is 0RG04A0 a valid ICD-10-PCS code for 2027?

Yes. 0RG04A0 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0RG04A0 an O.R. procedure?

Yes. 0RG04A0 is an O.R. procedure in MS-DRG v44.0.

What DRG does 0RG04A0 group to?

Depending on the principal diagnosis, 0RG04A0 can group to MS-DRG 028, MS-DRG 029, MS-DRG 030, MS-DRG 471, MS-DRG 472 and MS-DRG 473.

What is the ICD-9 procedure code for 0RG04A0?

The CMS GEMs map 0RG04A0 to ICD-9-CM 81.01 (Atlas-axis spinal fusion) and 84.51 (Insertion of interbody spinal fusion device).