0NWB05Z ICD-10-PCS Code: Revision of External Fixation Device in Nasal Bone, Open Approach

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 5 MS-DRGs:

• MDC 01 — Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis: DRG 023, DRG 024
• MDC 01 — Craniotomy and endovascular intracranial procedures: DRG 025, DRG 026, DRG 027

From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.

Related Codes

Same operation — other Body Part

Same table and root operation, differing only in the body part character.

0NW005Z — Revision of External Fixation Device in Skull, Open Approach, 0NWW05Z — Revision of External Fixation Device in Facial Bone, Open Approach

Same operation — other Approach

Same table and root operation, differing only in the approach character.

0NWB35Z — Revision of External Fixation Device in Nasal Bone, Percutaneous Approach, 0NWB45Z — Revision of External Fixation Device in Nasal Bone, Percutaneous Endoscopic Approach, 0NWBX5Z — Revision of External Fixation Device in Nasal Bone, External Approach

Same operation — other Device

Same table and root operation, differing only in the device character.

0NWB00Z — Revision of Drainage Device in Nasal Bone, Open Approach, 0NWB04Z — Revision of Internal Fixation Device in Nasal Bone, Open Approach, 0NWB07Z — Revision of Autologous Tissue Substitute in Nasal Bone, Open Approach, 0NWB0JZ — Revision of Synthetic Substitute in Nasal Bone, Open Approach, 0NWB0KZ — Revision of Nonautologous Tissue Substitute in Nasal Bone, Open Approach, 0NWB0MZ — Revision of Bone Growth Stimulator in Nasal Bone, Open Approach

Same procedure category (CCSR), other tables

AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under Bone fixation (excluding extremities) (Musculoskeletal, Subcutaneous Tissue, and Fascia Procedures); listed here are the members in other PCS tables. Source: Clinical Classifications Software Refined (CCSR), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, November 2025.

0NSV3ZZ — Reposition Left Mandible, Percutaneous Approach, 0NSV44Z — Reposition Left Mandible with Internal Fixation Device, Percutaneous Endoscopic Approach, 0NSV45Z — Reposition Left Mandible with External Fixation Device, Percutaneous Endoscopic Approach, 0NSV4ZZ — Reposition Left Mandible, Percutaneous Endoscopic Approach, 0NSX04Z — Reposition Hyoid Bone with Internal Fixation Device, Open Approach, 0NSX0ZZ — Reposition Hyoid Bone, Open Approach, 0NSX34Z — Reposition Hyoid Bone with Internal Fixation Device, Percutaneous Approach, 0NSX3ZZ — Reposition Hyoid Bone, Percutaneous Approach, 0NSX44Z — Reposition Hyoid Bone with Internal Fixation Device, Percutaneous Endoscopic Approach, 0NSX4ZZ — Reposition Hyoid Bone, Percutaneous Endoscopic Approach, 0PH000Z — Insertion of Rigid Plate Internal Fixation Device into Sternum, Open Approach, 0PH004Z — Insertion of Internal Fixation Device into Sternum, Open Approach, 0PH030Z — Insertion of Rigid Plate Internal Fixation Device into Sternum, Percutaneous Approach, 0PH034Z — Insertion of Internal Fixation Device into Sternum, Percutaneous Approach, 0PH040Z — Insertion of Rigid Plate Internal Fixation Device into Sternum, Percutaneous Endoscopic Approach, 0PH044Z — Insertion of Internal Fixation Device into Sternum, Percutaneous Endoscopic Approach, 0PH104Z — Insertion of Internal Fixation Device into 1 to 2 Ribs, Open Approach, 0PH134Z — Insertion of Internal Fixation Device into 1 to 2 Ribs, Percutaneous Approach, 0PH144Z — Insertion of Internal Fixation Device into 1 to 2 Ribs, Percutaneous Endoscopic Approach, 0PH204Z — Insertion of Internal Fixation Device into 3 or More Ribs, Open Approach, +534 more

Contextual Map

Every relationship of 0NWB05Z in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run 0NWB05Z with these 5 related codes in Claim Check

PCS table

• 0NW[PCS table]— CMS ICD-10-PCS tables
• Medical and Surgical — Section: Medical and Surgical[Section]: “Medical and Surgical”— CMS ICD-10-PCS tables
• Head and Facial Bones — Body System: Head and Facial Bones[Body System]: “Head and Facial Bones”— CMS ICD-10-PCS tables
• Revision — Operation: Revision[Operation]: “Revision”— CMS ICD-10-PCS tables

MS-DRG participation

• DRG 023 — CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITH MCC OR ANTINEOPLASTIC IMPLANT OR EPILEPSY WITH NEUROSTIMULATOR[MS-DRG]: “CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITH MCC OR ANTINEOPLASTIC IMPLANT OR EPILEPSY WITH NEUROSTIMULATOR — Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 024 — CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITHOUT MCC[MS-DRG]: “CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITHOUT MCC — Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 025 — CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH MCC[MS-DRG]: “CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH MCC — Craniotomy and endovascular intracranial procedures (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 026 — CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH CC[MS-DRG]: “CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH CC — Craniotomy and endovascular intracranial procedures (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 027 — CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITHOUT CC/MCC[MS-DRG]: “CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITHOUT CC/MCC — Craniotomy and endovascular intracranial procedures (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026

Clinical classification (CCSR)

• MST012 — Bone fixation (excluding extremities)[CCSR category]: “Bone fixation (excluding extremities) — Musculoskeletal, Subcutaneous Tissue, and Fascia Procedures”— AHRQ CCSR for ICD-10-PCS Procedures (HCUP) · v2026.1

MDC crossing · diagnoses (2636)

• MDC 01 — Diseases and Disorders of the Nervous System[MDC crossing]: “Diseases and Disorders of the Nervous System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026
• A02.21 — Salmonella meningitis[Same-MDC diagnosis]: “Salmonella meningitis — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A06.6 — Amebic brain abscess[Same-MDC diagnosis]: “Amebic brain abscess — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A17.0 — Tuberculous meningitis[Same-MDC diagnosis]: “Tuberculous meningitis — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A17.1 — Meningeal tuberculoma[Same-MDC diagnosis]: “Meningeal tuberculoma — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A17.81 — Tuberculoma of brain and spinal cord[Same-MDC diagnosis]: “Tuberculoma of brain and spinal cord — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• and 2631 more

Nearest codes

• 0NW005Z — Revision of External Fixation Device in Skull, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB00Z — Revision of Drainage Device in Nasal Bone, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB04Z — Revision of Internal Fixation Device in Nasal Bone, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB07Z — Revision of Autologous Tissue Substitute in Nasal Bone, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB0JZ — Revision of Synthetic Substitute in Nasal Bone, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB0KZ — Revision of Nonautologous Tissue Substitute in Nasal Bone, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB0MZ — Revision of Bone Growth Stimulator in Nasal Bone, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB35Z — Revision of External Fixation Device in Nasal Bone, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables