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ICD-10-PCS/0NQ/0NQ4XZZ
Inpatient Procedure Code

0NQ4XZZ

Repair Left Parietal Bone, External 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 SystemN

Head and Facial Bones

3
Root OperationQ

Repair

Restoring, to the extent possible, a body part to its normal anatomic structure and function

4
Body Part4

Parietal Bone, Left

5
ApproachX

External

6
DeviceZ

No Device

7
QualifierZ

No Qualifier

Contextual Map

Every relationship of 0NQ4XZZ 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

  • 0NQ[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]”

Nearest codes

  • 0NQ0XZZ — Repair Skull, External Approach [One axis away]
  • 0NQ1XZZ — Repair Frontal Bone, External Approach [One axis away]
  • 0NQ3XZZ — Repair Right Parietal Bone, External Approach [One axis away]
  • 0NQ40ZZ — Repair Left Parietal Bone, Open Approach [One axis away]
  • 0NQ43ZZ — Repair Left Parietal Bone, Percutaneous Approach [One axis away]
  • 0NQ44ZZ — Repair Left Parietal Bone, Percutaneous Endoscopic Approach [One axis away]
  • 0NQ5XZZ — Repair Right Temporal Bone, External Approach [One axis away]
  • 0NQ6XZZ — Repair Left Temporal Bone, External Approach [One axis away]

Change history

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