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ICD-10-PCS/0WB/0WB3XZX
Inpatient Procedure Code

0WB3XZX

Excision of Oral Cavity and Throat, External Approach, Diagnostic

Excision of Oral Cavity and Throat, External Approach, Diagn

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 SystemW

Anatomical Regions, General

3
Root OperationB

Excision

Cutting out or off, without replacement, a portion of a body part

4
Body Part3

Oral Cavity and Throat

5
ApproachX

External

6
DeviceZ

No Device

7
QualifierX

Diagnostic

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:

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

Contextual Map

Every relationship of 0WB3XZX 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

  • 0WB[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

  • DRG 137 — MOUTH PROCEDURES WITH CC/MCC [MS-DRG]: “MOUTH PROCEDURES WITH CC/MCC — Mouth Procedures (MDC 03)”
  • DRG 138 — MOUTH PROCEDURES WITHOUT CC/MCC [MS-DRG]: “MOUTH PROCEDURES WITHOUT CC/MCC — Mouth Procedures (MDC 03)”

Change history

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