0NWW34Z ICD-10-PCS Code: Revision of Internal Fixation Device in Facial Bone, Percutaneous 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 3 MS-DRGs:

• MDC 03 — Other Ear, Nose, Mouth and Throat O.R. Procedures: DRG 143, DRG 144, DRG 145

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.

0NW034Z — Revision of Internal Fixation Device in Skull, Percutaneous Approach, 0NWB34Z — Revision of Internal Fixation Device in Nasal Bone, Percutaneous Approach

Same operation — other Approach

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

0NWW04Z — Revision of Internal Fixation Device in Facial Bone, Open Approach, 0NWW44Z — Revision of Internal Fixation Device in Facial Bone, Percutaneous Endoscopic Approach, 0NWWX4Z — Revision of Internal Fixation Device in Facial Bone, External Approach

Same operation — other Device

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

0NWW30Z — Revision of Drainage Device in Facial Bone, Percutaneous Approach, 0NWW35Z — Revision of External Fixation Device in Facial Bone, Percutaneous Approach, 0NWW37Z — Revision of Autologous Tissue Substitute in Facial Bone, Percutaneous Approach, 0NWW3JZ — Revision of Synthetic Substitute in Facial Bone, Percutaneous Approach, 0NWW3KZ — Revision of Nonautologous Tissue Substitute in Facial Bone, Percutaneous Approach, 0NWW3MZ — Revision of Bone Growth Stimulator in Facial Bone, Percutaneous 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 0NWW34Z 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 0NWW34Z 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 143 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 144 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 145 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”— 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 (1444)

• MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat[MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — 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
• A18.6 — Tuberculosis of (inner) (middle) ear[Same-MDC diagnosis]: “Tuberculosis of (inner) (middle) ear — grouped in MDC 03, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A36.0 — Pharyngeal diphtheria[Same-MDC diagnosis]: “Pharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A36.1 — Nasopharyngeal diphtheria[Same-MDC diagnosis]: “Nasopharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A36.2 — Laryngeal diphtheria[Same-MDC diagnosis]: “Laryngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A54.5 — Gonococcal pharyngitis[Same-MDC diagnosis]: “Gonococcal pharyngitis — grouped in MDC 03, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• and 1439 more

Nearest codes

• 0NW034Z — Revision of Internal Fixation Device in Skull, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWB34Z — Revision of Internal Fixation Device in Nasal Bone, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWW04Z — Revision of Internal Fixation Device in Facial Bone, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWW30Z — Revision of Drainage Device in Facial Bone, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWW35Z — Revision of External Fixation Device in Facial Bone, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWW37Z — Revision of Autologous Tissue Substitute in Facial Bone, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWW3JZ — Revision of Synthetic Substitute in Facial Bone, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables
• 0NWW3KZ — Revision of Nonautologous Tissue Substitute in Facial Bone, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables