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Inpatient Procedure Code

0CWY0YZ ICD-10-PCS Code: Revision of Other Device in Mouth and Throat, Open Approach

Check this code on a claim

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 SystemC

Mouth and Throat

3
Root OperationW

Revision

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

4
Body PartY

Mouth and Throat

5
Approach0

Open

6
DeviceY

Other Device

7
QualifierZ

No Qualifier

MS-DRG Grouper Relationships (FY2027)

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 11 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.

0CWA0YZ — Revision of Other Device in Salivary Gland, Open Approach, 0CWS0YZ — Revision of Other Device in Larynx, Open Approach

Same operation — other Approach

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

0CWY3YZ — Revision of Other Device in Mouth and Throat, Percutaneous Approach, 0CWY7YZ — Revision of Other Device in Mouth and Throat, Via Natural or Artificial Opening, 0CWY8YZ — Revision of Other Device in Mouth and Throat, Via Natural or Artificial Opening Endoscopic

Same operation — other Device

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

0CWY00Z — Revision of Drainage Device in Mouth and Throat, Open Approach, 0CWY01Z — Revision of Radioactive Element in Mouth and Throat, Open Approach, 0CWY07Z — Revision of Autologous Tissue Substitute in Mouth and Throat, Open Approach, 0CWY0DZ — Revision of Intraluminal Device in Mouth and Throat, Open Approach, 0CWY0JZ — Revision of Synthetic Substitute in Mouth and Throat, Open Approach, 0CWY0KZ — Revision of Nonautologous Tissue Substitute in Mouth and Throat, Open Approach

Same procedure category (CCSR), other tables

AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under ENT procedures, NEC (Ear, Nose, and Throat 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.

+1293 more

Contextual Map

Every relationship of 0CWY0YZ 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 0CWY0YZ with these 5 related codes in Claim Check

PCS table

MS-DRG participation (11)

Clinical classification (CCSR)

  • ENT017 — ENT procedures, NEC[CCSR category]: “ENT procedures, NEC — Ear, Nose, and Throat Procedures”— AHRQ CCSR for ICD-10-PCS Procedures (HCUP) · v2026.1

MDC crossing · diagnoses (13321)

  • 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 · FY2027
  • MDC 09 — Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast[MDC crossing]: “Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast — 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 · FY2027
  • 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) · FY2027
  • 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) · FY2027
  • 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) · FY2027
  • 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) · FY2027
  • 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) · FY2027
  • and 13316 more

Nearest codes

Change history

Change history

  • FY2018 — October 1, 2017
    Added to the code set
    Revision of Other Device in Mouth and Throat, Open Approach
    FY2018 changes

Read from: CMS ICD-10-PCS code tables, index and definitions — FY2027; CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44; 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 · How MedCoder verifies its implementation

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources