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Inpatient Procedure Code

0RHR45ZICD-10-PCS Code: Insertion of External Fixation Device into Left Carpal Joint, Percutaneous Endoscopic Approach

Insertion of Ext Fix into L Carpal Jt, Perc Endo 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 SystemR

Upper Joints

3
Root OperationH

Insertion

Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part

4
Body PartR

Carpal Joint, Left

5
Approach4

Percutaneous Endoscopic

6
Device5

External Fixation Device

7
QualifierZ

No Qualifier

Potential MS-DRG Relationships (FY2026)

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 2 MS-DRGs:

  • MDC 08 — Major Thumb or Joint Procedures: DRG 506
  • MDC 21 — Hand Procedures for Injuries: DRG 906

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.

0RHM45Z — Insertion of External Fixation Device into Left Elbow Joint, Percutaneous Endoscopic Approach, 0RHN45Z — Insertion of External Fixation Device into Right Wrist Joint, Percutaneous Endoscopic Approach, 0RHP45Z — Insertion of External Fixation Device into Left Wrist Joint, Percutaneous Endoscopic Approach, 0RHQ45Z — Insertion of External Fixation Device into Right Carpal Joint, Percutaneous Endoscopic Approach, 0RHS45Z — Insertion of External Fixation Device into Right Carpometacarpal Joint, Percutaneous Endoscopic Approach, 0RHT45Z — Insertion of External Fixation Device into Left Carpometacarpal Joint, Percutaneous Endoscopic Approach, 0RHU45Z — Insertion of External Fixation Device into Right Metacarpophalangeal Joint, Percutaneous Endoscopic Approach, 0RHV45Z — Insertion of External Fixation Device into Left Metacarpophalangeal Joint, Percutaneous Endoscopic Approach, +3 more

Same operation — other Approach

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

0RHR05Z — Insertion of External Fixation Device into Left Carpal Joint, Open Approach, 0RHR35Z — Insertion of External Fixation Device into Left Carpal Joint, Percutaneous Approach

Same operation — other Device

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

0RHR43Z — Insertion of Infusion Device into Left Carpal Joint, Percutaneous Endoscopic Approach, 0RHR44Z — Insertion of Internal Fixation Device into Left Carpal Joint, Percutaneous Endoscopic Approach, 0RHR48Z — Insertion of Spacer into Left Carpal Joint, Percutaneous Endoscopic Approach

Contextual Map

Every relationship of 0RHR45Z 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.

PCS table

  • 0RH[PCS table]
  • Medical and Surgical — Section: Medical and Surgical [Section]: “Medical and Surgical”
  • Upper Joints — Body System: Upper Joints [Body System]: “Upper Joints”
  • Insertion — Operation: Insertion [Operation]: “Insertion”

MS-DRG participation

  • DRG 506 — MAJOR THUMB OR JOINT PROCEDURES [MS-DRG]: “MAJOR THUMB OR JOINT PROCEDURES — Major Thumb or Joint Procedures (MDC 08)”
  • DRG 906 — HAND PROCEDURES FOR INJURIES [MS-DRG]: “HAND PROCEDURES FOR INJURIES — Hand Procedures for Injuries (MDC 21)”

MDC crossing · diagnoses (31735)

  • 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.”
  • MDC 21 — Injuries, Poisonings and Toxic Effects of Drugs [MDC crossing]: “Injuries, Poisonings and Toxic Effects of Drugs — 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.”
  • A02.23 — Salmonella arthritis [Same-MDC diagnosis]: “Salmonella arthritis — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A02.24 — Salmonella osteomyelitis [Same-MDC diagnosis]: “Salmonella osteomyelitis — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A18.01 — Tuberculosis of spine [Same-MDC diagnosis]: “Tuberculosis of spine — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A18.02 — Tuberculous arthritis of other joints [Same-MDC diagnosis]: “Tuberculous arthritis of other joints — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • A18.03 — Tuberculosis of other bones [Same-MDC diagnosis]: “Tuberculosis of other bones — grouped in MDC 08, the diagnosis side of this code's crossing.” · check together
  • and 31730 more

Nearest codes

  • 0RHL45Z — Insertion of External Fixation Device into Right Elbow Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0RHM45Z — Insertion of External Fixation Device into Left Elbow Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0RHN45Z — Insertion of External Fixation Device into Right Wrist Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0RHP45Z — Insertion of External Fixation Device into Left Wrist Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0RHQ45Z — Insertion of External Fixation Device into Right Carpal Joint, Percutaneous Endoscopic Approach [One axis away]
  • 0RHR05Z — Insertion of External Fixation Device into Left Carpal Joint, Open Approach [One axis away]
  • 0RHR35Z — Insertion of External Fixation Device into Left Carpal Joint, Percutaneous Approach [One axis away]
  • 0RHR43Z — Insertion of Infusion Device into Left Carpal Joint, Percutaneous Endoscopic Approach [One axis away]

Change history

No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.