4A027CZ ICD-10-PCS Code: Measurement of Cardiac Rate, Via Natural or Artificial Opening
Measurement of Cardiac Rate, 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.
| 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 System2 | Cardiac |
| 5 | Approach7 | Via Natural or Artificial Opening |
| 6 | Function / DeviceC | Rate |
| 7 | QualifierZ | No Qualifier |
Related Codes
Same operation — other Body System
Same table and root operation, differing only in the body system character.
4A097CZ — Measurement of Respiratory Rate, Via Natural or Artificial Opening, 4A0H7CZ — Measurement of Products of Conception, Cardiac Rate, Via Natural or Artificial Opening
Same operation — other Approach
Same table and root operation, differing only in the approach character.
4A020CZ — Measurement of Cardiac Rate, Open Approach, 4A023CZ — Measurement of Cardiac Rate, Percutaneous Approach, 4A028CZ — Measurement of Cardiac Rate, Via Natural or Artificial Opening Endoscopic, 4A02XCZ — Measurement of Cardiac Rate, External Approach
Same operation — other Function / Device
Same table and root operation, differing only in the function / device character.
4A0274Z — Measurement of Cardiac Electrical Activity, Via Natural or Artificial Opening, 4A0279Z — Measurement of Cardiac Output, Via Natural or Artificial Opening, 4A027FZ — Measurement of Cardiac Rhythm, Via Natural or Artificial Opening, 4A027HZ — Measurement of Cardiac Sound, Via Natural or Artificial Opening, 4A027PZ — Measurement of Cardiac Action Currents, Via Natural or Artificial Opening
Same procedure category (CCSR), other tables
AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under Other cardiovascular system measurement and monitoring (Measurement and Monitoring); 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.
4A12XSH — Monitoring of Cardiac Vascular Perfusion using Indocyanine Green Dye, External Approach, 4A13051 — Monitoring of Arterial Flow, Peripheral, Open Approach, 4A13053 — Monitoring of Arterial Flow, Pulmonary, Open Approach, 4A130B1 — Monitoring of Arterial Pressure, Peripheral, Open Approach, 4A130B3 — Monitoring of Arterial Pressure, Pulmonary, Open Approach, 4A130H1 — Monitoring of Arterial Sound, Peripheral, Open Approach, 4A130J1 — Monitoring of Arterial Pulse, Peripheral, Open Approach, 4A130J3 — Monitoring of Arterial Pulse, Pulmonary, Open Approach, 4A133H1 — Monitoring of Arterial Sound, Peripheral, Percutaneous Approach, 4A13X51 — Monitoring of Arterial Flow, Peripheral, External Approach, 4A13XB1 — Monitoring of Arterial Pressure, Peripheral, External Approach, 4A13XH1 — Monitoring of Arterial Sound, Peripheral, External Approach, 4A13XJ1 — Monitoring of Arterial Pulse, Peripheral, External Approach, 4A14050 — Monitoring of Venous Flow, Central, Open Approach, 4A14051 — Monitoring of Venous Flow, Peripheral, Open Approach, 4A14052 — Monitoring of Venous Flow, Portal, Open Approach, 4A14053 — Monitoring of Venous Flow, Pulmonary, Open Approach, 4A140B0 — Monitoring of Venous Pressure, Central, Open Approach, 4A140B1 — Monitoring of Venous Pressure, Peripheral, Open Approach, 4A140B2 — Monitoring of Venous Pressure, Portal, Open Approach, +29 more
Contextual Map
Every relationship of 4A027CZ 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]— CMS ICD-10-PCS tables
- Measurement and Monitoring — Section: Measurement and Monitoring[Section]: “Measurement and Monitoring”— CMS ICD-10-PCS tables
- Physiological Systems — Body System: Physiological Systems[Body System]: “Physiological Systems”— CMS ICD-10-PCS tables
- Measurement — Operation: Measurement[Operation]: “Measurement”— CMS ICD-10-PCS tables
Clinical classification (CCSR)
- MAM010 — Other cardiovascular system measurement and monitoring[CCSR category]: “Other cardiovascular system measurement and monitoring — Measurement and Monitoring”— AHRQ CCSR for ICD-10-PCS Procedures (HCUP) · v2026.1
Nearest codes
- 4A020CZ — Measurement of Cardiac Rate, Open Approach[One axis away]— CMS ICD-10-PCS tables
- 4A023CZ — Measurement of Cardiac Rate, Percutaneous Approach[One axis away]— CMS ICD-10-PCS tables
- 4A0274Z — Measurement of Cardiac Electrical Activity, Via Natural or Artificial Opening[One axis away]— CMS ICD-10-PCS tables
- 4A0279Z — Measurement of Cardiac Output, Via Natural or Artificial Opening[One axis away]— CMS ICD-10-PCS tables
- 4A027FZ — Measurement of Cardiac Rhythm, Via Natural or Artificial Opening[One axis away]— CMS ICD-10-PCS tables
- 4A027HZ — Measurement of Cardiac Sound, Via Natural or Artificial Opening[One axis away]— CMS ICD-10-PCS tables
- 4A027PZ — Measurement of Cardiac Action Currents, Via Natural or Artificial Opening[One axis away]— CMS ICD-10-PCS tables
- 4A028CZ — Measurement of Cardiac Rate, Via Natural or Artificial Opening Endoscopic[One axis away]— CMS ICD-10-PCS tables
Change history
No changes recorded for this code. This ledger tracks additions, deletions and description changes from FY2026 (April) onward. Note changes are not tracked.
Read from: CMS ICD-10-PCS code tables, index and definitions — FY2026 (April); CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43; 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