0R9R0ZZ ICD-10-PCS Code: Drainage of Left Carpal Joint, 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 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.

0R9M0ZZ — Drainage of Left Elbow Joint, Open Approach, 0R9N0ZZ — Drainage of Right Wrist Joint, Open Approach, 0R9P0ZZ — Drainage of Left Wrist Joint, Open Approach, 0R9Q0ZZ — Drainage of Right Carpal Joint, Open Approach, 0R9S0ZZ — Drainage of Right Carpometacarpal Joint, Open Approach, 0R9T0ZZ — Drainage of Left Carpometacarpal Joint, Open Approach, 0R9U0ZZ — Drainage of Right Metacarpophalangeal Joint, Open Approach, 0R9V0ZZ — Drainage of Left Metacarpophalangeal Joint, Open Approach, +20 more

Same operation — other Approach

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

0R9R3ZZ — Drainage of Left Carpal Joint, Percutaneous Approach, 0R9R4ZZ — Drainage of Left Carpal Joint, Percutaneous Endoscopic Approach

Same operation — other Device

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

0R9R00Z — Drainage of Left Carpal Joint with Drainage Device, Open Approach

Same operation — other Qualifier

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

0R9R0ZX — Drainage of Left Carpal Joint, Open Approach, Diagnostic

Same procedure category (CCSR), other tables

AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under Incision and drainage of musculoskeletal tissue and joints (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.

+1815 more

Contextual Map

Every relationship of 0R9R0ZZ 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 0R9R0ZZ with these 5 related codes in Claim Check

PCS table

• 0R9[PCS table]— CMS ICD-10-PCS tables
• Medical and Surgical — Section: Medical and Surgical[Section]: “Medical and Surgical”— CMS ICD-10-PCS tables
• Upper Joints — Body System: Upper Joints[Body System]: “Upper Joints”— CMS ICD-10-PCS tables
• Drainage — Operation: Drainage[Operation]: “Drainage”— CMS ICD-10-PCS tables

MS-DRG participation

• DRG 506 — MAJOR THUMB OR JOINT PROCEDURES[MS-DRG]: “MAJOR THUMB OR JOINT PROCEDURES — Major Thumb or Joint Procedures (MDC 08)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 906 — HAND PROCEDURES FOR INJURIES[MS-DRG]: “HAND PROCEDURES FOR INJURIES — Hand Procedures for Injuries (MDC 21)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026

Clinical classification (CCSR)

• MST004 — Incision and drainage of musculoskeletal tissue and joints[CCSR category]: “Incision and drainage of musculoskeletal tissue and joints — Musculoskeletal, Subcutaneous Tissue, and Fascia Procedures”— AHRQ CCSR for ICD-10-PCS Procedures (HCUP) · v2026.1

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.”— CMS MS-DRG Definitions Manual · FY2026
• 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.”— CMS MS-DRG Definitions Manual · FY2026
• A02.23 — Salmonella arthritis[Same-MDC diagnosis]: “Salmonella arthritis — grouped in MDC 08, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A02.24 — Salmonella osteomyelitis[Same-MDC diagnosis]: “Salmonella osteomyelitis — grouped in MDC 08, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A18.01 — Tuberculosis of spine[Same-MDC diagnosis]: “Tuberculosis of spine — grouped in MDC 08, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• 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.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• 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.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• and 31730 more

Nearest codes

• 0R900ZZ — Drainage of Occipital-cervical Joint, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0R910ZZ — Drainage of Cervical Vertebral Joint, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0R930ZZ — Drainage of Cervical Vertebral Disc, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0R940ZZ — Drainage of Cervicothoracic Vertebral Joint, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0R950ZZ — Drainage of Cervicothoracic Vertebral Disc, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0R960ZZ — Drainage of Thoracic Vertebral Joint, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0R990ZZ — Drainage of Thoracic Vertebral Disc, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 0R9A0ZZ — Drainage of Thoracolumbar Vertebral Joint, Open Approach[One axis away]— CMS ICD-10-PCS tables