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Inpatient Procedure Code

0NSR0ZZ ICD-10-PCS Code: Reposition Maxilla, Open Approach

Axis Breakdown

Every ICD-10-PCS code is exactly seven characters, one per axis. Each character's meaning is defined by its position in the code.

PositionValueMeaning
1
Section0

Medical and Surgical

2
Body SystemN

Head and Facial Bones

3
Root OperationS

Reposition

Moving to its normal location, or other suitable location, all or a portion of a body part

4
Body PartR

Maxilla

5
Approach0

Open

6
DeviceZ

No Device

7
QualifierZ

No Qualifier

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 12 MS-DRGs:

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.

0NSL0ZZ — Reposition Left Palatine Bone, Open Approach, 0NSM0ZZ — Reposition Right Zygomatic Bone, Open Approach, 0NSN0ZZ — Reposition Left Zygomatic Bone, Open Approach, 0NSP0ZZ — Reposition Right Orbit, Open Approach, 0NSQ0ZZ — Reposition Left Orbit, Open Approach, 0NST0ZZ — Reposition Right Mandible, Open Approach, 0NSV0ZZ — Reposition Left Mandible, Open Approach, 0NSX0ZZ — Reposition Hyoid Bone, Open Approach, +14 more

Same operation — other Approach

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

0NSR3ZZ — Reposition Maxilla, Percutaneous Approach, 0NSR4ZZ — Reposition Maxilla, Percutaneous Endoscopic Approach, 0NSRXZZ — Reposition Maxilla, External Approach

Same operation — other Device

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

0NSR04Z — Reposition Maxilla with Internal Fixation Device, Open Approach, 0NSR05Z — Reposition Maxilla with External Fixation Device, 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.

0NPBX4Z — Removal of Internal Fixation Device from Nasal Bone, External Approach, 0NPBX5Z — Removal of External Fixation Device from Nasal Bone, External Approach, 0NPW04Z — Removal of Internal Fixation Device from Facial Bone, Open Approach, 0NPW05Z — Removal of External Fixation Device from Facial Bone, Open Approach, 0NPW34Z — Removal of Internal Fixation Device from Facial Bone, Percutaneous Approach, 0NPW35Z — Removal of External Fixation Device from Facial Bone, Percutaneous Approach, 0NPW44Z — Removal of Internal Fixation Device from Facial Bone, Percutaneous Endoscopic Approach, 0NPW45Z — Removal of External Fixation Device from Facial Bone, Percutaneous Endoscopic Approach, 0NPWX4Z — Removal of Internal Fixation Device from Facial Bone, External Approach, 0NPWX5Z — Removal of External Fixation Device from Facial Bone, External Approach, 0NW004Z — Revision of Internal Fixation Device in Skull, Open Approach, 0NW005Z — Revision of External Fixation Device in Skull, Open Approach, 0NW034Z — Revision of Internal Fixation Device in Skull, Percutaneous Approach, 0NW035Z — Revision of External Fixation Device in Skull, Percutaneous Approach, 0NW044Z — Revision of Internal Fixation Device in Skull, Percutaneous Endoscopic Approach, 0NW045Z — Revision of External Fixation Device in Skull, Percutaneous Endoscopic Approach, 0NW0X4Z — Revision of Internal Fixation Device in Skull, External Approach, 0NW0X5Z — Revision of External Fixation Device in Skull, External Approach, 0NWB04Z — Revision of Internal Fixation Device in Nasal Bone, Open Approach, 0NWB05Z — Revision of External Fixation Device in Nasal Bone, Open Approach, +408 more

Contextual Map

Every relationship of 0NSR0ZZ 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 0NSR0ZZ with these 5 related codes in Claim Check

PCS table

MS-DRG participation (12)

Clinical classification (CCSR)

MDC crossing · diagnoses (33179)

  • 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
  • MDC 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue[MDC crossing]: “Diseases and Disorders of the Musculoskeletal System and Connective Tissue — 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 33174 more

Nearest codes

Change history

No changes recorded for this code. This ledger tracks additions, deletions and description changes from FY2026 (April) onward. Note changes are not tracked.

Read from: CMS ICD-10-PCS code tables, index and definitions — FY2026 (April); CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43; AHRQ HCUP Clinical Classifications Software Refined for ICD-10-PCS Procedures (hcup-us.ahrq.gov/toolssoftware/ccsr/PRCCSR_v2026-1.zip) — v2026.1. All data sources · How to read the labels