Inpatient Procedure Code
4A040B3
Measurement of Venous Pressure, Pulmonary, Open 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.
| Position | Value | Meaning |
|---|---|---|
| 1 | Section4 | Measurement and Monitoring |
| 2 | Body SystemA | Physiological Systems |
| 3 | Root Operation0 | Measurement Determining the level of a physiological or physical function at a point in time |
| 4 | Body System4 | Venous |
| 5 | Approach0 | Open |
| 6 | Function / DeviceB | Pressure |
| 7 | Qualifier3 | Pulmonary |
Contextual Map
Every relationship of 4A040B3 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
- 4A0[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
- 4A030B3 — Measurement of Arterial Pressure, Pulmonary, Open Approach [One axis away]
- 4A04053 — Measurement of Venous Flow, Pulmonary, Open Approach [One axis away]
- 4A040B0 — Measurement of Venous Pressure, Central, Open Approach [One axis away]
- 4A040B1 — Measurement of Venous Pressure, Peripheral, Open Approach [One axis away]
- 4A040B2 — Measurement of Venous Pressure, Portal, Open Approach [One axis away]
- 4A040J3 — Measurement of Venous Pulse, Pulmonary, Open Approach [One axis away]
- 4A043B3 — Measurement of Venous Pressure, Pulmonary, Percutaneous Approach [One axis away]
Change history
No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.