Skip to content
Dx

ICD-10-PCS 2027 procedure code

0NR44JZReplacement of Left Parietal Bone with Synthetic Substitute, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Replace L Parietal Bone w Synth Sub, 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 0NR44JZ

0NR44JZ is the ICD-10-PCS code for a replacement procedure on the left parietal bone using a percutaneous endoscopic approach with synthetic substitute. In ICD-10-PCS, replacement means putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part.

In plain terms, this corresponds to insertion of skull plate, the ICD-9-CM procedure title it maps to (02.05).

For a different body part, codes include 0NR04JZ (skull), 0NR14JZ (frontal bone), 0NR34JZ (right parietal bone), 0NR54JZ (right temporal bone), 0NR64JZ (left temporal bone), 0NR74JZ (occipital bone) and 16 more.

The same procedure with a different approach is coded 0NR40JZ (open) and 0NR43JZ (percutaneous).

With a different device, use 0NR447Z (autologous tissue substitute) and 0NR44KZ (nonautologous tissue substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC), DRG 025 (Craniotomy and Endovascular Intracranial Procedures with MCC), DRG 026 (Craniotomy and Endovascular Intracranial Procedures with CC), DRG 027 (Craniotomy and Endovascular Intracranial Procedures without CC/MCC) and DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures”, “Other Ear, Nose, Mouth and Throat O.R. Procedures” and 3 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
NHead and Facial Bones
3. Operation
RReplacement

Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part

The body part may have been taken out or replaced, or may be taken out, physically eradicated, or rendered nonfunctional during the Replacement procedure. A Removal procedure is coded for taking out the device used in a previous replacement procedure

Includes: Total hip replacement, bone graft, free skin graft

4. Body Part
4Parietal Bone, Left
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
JSynthetic Substitute

Includes: AbioCor(R) Total Replacement Heart; AMPLATZER(R) Muscular VSD Occluder; Annuloplasty ring; Bard(R) Composix(R) (E/X)(LP) mesh; Bard(R) Composix(R) Kugel(R) patch; Bard(R) Dulex(tm) mesh; Bard(R) Ventralex(tm) hernia patch; Barricaid(R) Annular Closure Device (ACD); BRYAN(R) Cervical Disc System; Corvia IASD(R); Ex-PRESS(tm) mini glaucoma shunt; Flexible Composite Mesh; GORE(R) ACUSEAL Vascular Graft; GORE(R) CARDIOFORM Septal Occluder; GORE(R) DUALMESH(R); GORE(R) PROPATEN(R) Vascular Graft; GORE(R) VIATORR(R) TIPS Endoprosthesis; Holter valve ventricular shunt; IASD(R) (InterAtrial Shunt Device), Corvia; InterAtrial Shunt Device IASD(R), Corvia; LimFlow(tm) Transcatheter Arterialization of the Deep Veins (TADV) System; MitraClip valve repair system; Nitinol framed polymer mesh; Open Pivot (mechanical) valve; Open Pivot Aortic Valve Graft (AVG); Partially absorbable mesh; PHYSIOMESH(tm) Flexible Composite Mesh; Polymethylmethacrylate (PMMA); Polypropylene mesh; PRESTIGE(R) Cervical Disc; PROCEED(tm) Ventral Patch; Prodisc-C; Prodisc-L; PROLENE Polypropylene Hernia System (PHS); Rebound HRD(R) (Hernia Repair Device); SynCardia Total Artificial Heart; Total artificial (replacement) heart; ULTRAPRO Hernia System (UHS); ULTRAPRO Partially Absorbable Lightweight Mesh; ULTRAPRO Plug; V-Wave Interatrial Shunt System; Ventrio(tm) Hernia Patch; Zimmer(R) NexGen(R) LPS Mobile Bearing Knee; Zimmer(R) NexGen(R) LPS-Flex Mobile Knee

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.

MDC 24 · Multiple Significant Trauma · Craniotomy for Multiple Significant Trauma

ICD-9-CM equivalent

Converter →
  • 02.05Insertion of skull plateapproximate

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 0NR44JZ

Is 0NR44JZ a valid ICD-10-PCS code for 2027?

Yes. 0NR44JZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NR44JZ an O.R. procedure?

Yes. 0NR44JZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NR44JZ group to?

Depending on the principal diagnosis, 0NR44JZ can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 143.

What is the ICD-9 procedure code for 0NR44JZ?

The CMS GEMs map 0NR44JZ to ICD-9-CM 02.05 (Insertion of skull plate).