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ICD-10-PCS/0CW/0CWY70Z
Inpatient Procedure Code

0CWY70Z

Revision of Drainage Device in Mouth and Throat, Via Natural or Artificial Opening

Revision of Drainage Device in Mouth and Throat, Via Opening

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
Approach7

Via Natural or Artificial Opening

6
Device0

Drainage 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 9 MS-DRGs:

From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.

Contextual Map

Every relationship of 0CWY70Z 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

  • 0CW[PCS table]
  • [object Object] — Section: [object Object] [Section]: “[object Object]”
  • [object Object] — Body System: [object Object] [Body System]: “[object Object]”
  • [object Object] — Operation: [object Object] [Operation]: “[object Object]”

MS-DRG participation (9)

  • 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)”
  • 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)”
  • 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)”
  • DRG 907 — OTHER O.R. PROCEDURES FOR INJURIES WITH MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH MCC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 908 — OTHER O.R. PROCEDURES FOR INJURIES WITH CC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH CC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 909 — OTHER O.R. PROCEDURES FOR INJURIES WITHOUT CC/MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITHOUT CC/MCC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 957 — OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH MCC — Other O.R. Procedures for Multiple Significant Trauma (MDC 24)”
  • DRG 958 — OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH CC [MS-DRG]: “OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH CC — Other O.R. Procedures for Multiple Significant Trauma (MDC 24)”
  • and 1 more

MDC crossing · diagnoses (16566)

  • 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.”
  • 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.”
  • 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.”
  • A36.0 — Pharyngeal diphtheria [Same-MDC diagnosis]: “Pharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.”
  • A36.1 — Nasopharyngeal diphtheria [Same-MDC diagnosis]: “Nasopharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.”
  • A36.2 — Laryngeal diphtheria [Same-MDC diagnosis]: “Laryngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.”
  • A54.5 — Gonococcal pharyngitis [Same-MDC diagnosis]: “Gonococcal pharyngitis — grouped in MDC 03, the diagnosis side of this code's crossing.”
  • and 16561 more

Nearest codes

  • 0CWS70Z — Revision of Drainage Device in Larynx, Via Natural or Artificial Opening [One axis away]
  • 0CWY00Z — Revision of Drainage Device in Mouth and Throat, Open Approach [One axis away]
  • 0CWY30Z — Revision of Drainage Device in Mouth and Throat, Percutaneous Approach [One axis away]
  • 0CWY71Z — Revision of Radioactive Element in Mouth and Throat, Via Natural or Artificial Opening [One axis away]
  • 0CWY77Z — Revision of Autologous Tissue Substitute in Mouth and Throat, Via Natural or Artificial Opening [One axis away]
  • 0CWY7DZ — Revision of Intraluminal Device in Mouth and Throat, Via Natural or Artificial Opening [One axis away]
  • 0CWY7JZ — Revision of Synthetic Substitute in Mouth and Throat, Via Natural or Artificial Opening [One axis away]
  • 0CWY7KZ — Revision of Nonautologous Tissue Substitute in Mouth and Throat, Via Natural or Artificial Opening [One axis away]

Change history

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