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ICD-10-PCS 2027 procedure code

0RN04ZZRelease Occipital-cervical Joint, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Release Occipital-cervical Joint, Perc Endo 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 0RN04ZZ

0RN04ZZ is the ICD-10-PCS code for a release procedure on the occipital-cervical joint using a percutaneous endoscopic approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.

In plain terms, this corresponds to division of joint capsule, ligament, or cartilage, other specified sites, the ICD-9-CM procedure title it maps to (80.49).

For a different body part, codes include 0RN14ZZ (cervical vertebral joint), 0RN34ZZ (cervical vertebral disc), 0RN44ZZ (cervicothoracic vertebral joint), 0RN54ZZ (cervicothoracic vertebral disc), 0RN64ZZ (thoracic vertebral joint), 0RN94ZZ (thoracic vertebral disc) and 22 more.

The same procedure with a different approach is coded 0RN00ZZ (open), 0RN03ZZ (percutaneous) and 0RN0XZZ (external).

It is an operating-room procedure in the MS-DRG logic for DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC), DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), DRG 957 (Other O.R. Procedures for Multiple Significant Trauma with MCC), DRG 958 (Other O.R. Procedures for Multiple Significant Trauma with CC) and DRG 959 (Other O.R. Procedures for Multiple Significant Trauma without CC/MCC), under the surgical categories “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

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
NRelease

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Some of the restraining tissue may be taken out but none of the body part is taken out

Includes: Adhesiolysis, carpal tunnel release

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
ZNo Device
7. Qualifier
ZNo Qualifier

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.

ICD-9-CM equivalent

Converter →
  • 80.49Division of joint capsule, ligament, or cartilage, other specified sitesapproximate

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 0RN04ZZ

Is 0RN04ZZ a valid ICD-10-PCS code for 2027?

Yes. 0RN04ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0RN04ZZ an O.R. procedure?

Yes. 0RN04ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0RN04ZZ group to?

Depending on the principal diagnosis, 0RN04ZZ can group to MS-DRG 907, MS-DRG 908, MS-DRG 909, MS-DRG 957, MS-DRG 958 and MS-DRG 959.

What is the ICD-9 procedure code for 0RN04ZZ?

The CMS GEMs map 0RN04ZZ to ICD-9-CM 80.49 (Division of joint capsule, ligament, or cartilage, other specified sites).