4A19X5Z – Monitoring of Respiratory Flow, External Approach

Coding Notes

Active

Billable, valid for HIPAA-covered transactions

PCS Table

Section 4 Measurement and Monitoring
Body System A Physiological Systems
Operation 1 Monitoring
Body System	Approach	Function / Device	Qualifier
0 Central Nervous	0 Open	2 Conductivity B Pressure	Z No Qualifier
0 Central Nervous	0 Open	4 Electrical Activity	G Intraoperative Z No Qualifier
0 Central Nervous	3 Percutaneous 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic	4 Electrical Activity	G Intraoperative Z No Qualifier
0 Central Nervous	3 Percutaneous 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic	B Pressure K Temperature R Saturation	D Intracranial
0 Central Nervous	X External	2 Conductivity	Z No Qualifier
0 Central Nervous	X External	4 Electrical Activity	G Intraoperative Z No Qualifier
1 Peripheral Nervous	0 Open 3 Percutaneous 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic X External	2 Conductivity	9 Sensory B Motor
1 Peripheral Nervous	0 Open 3 Percutaneous 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic X External	4 Electrical Activity	G Intraoperative Z No Qualifier
2 Cardiac	0 Open 3 Percutaneous 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic	4 Electrical Activity 9 Output C Rate F Rhythm H Sound	Z No Qualifier
2 Cardiac	X External	4 Electrical Activity	5 Ambulatory Z No Qualifier
2 Cardiac	X External	9 Output C Rate F Rhythm H Sound	Z No Qualifier
2 Cardiac	X External	M Total Activity	4 Stress
2 Cardiac	X External	S Vascular Perfusion	H Indocyanine Green Dye
3 Arterial	0 Open 3 Percutaneous	5 Flow B Pressure J Pulse	1 Peripheral 3 Pulmonary C Coronary
3 Arterial	0 Open 3 Percutaneous	H Sound R Saturation	1 Peripheral
3 Arterial	X External	5 Flow B Pressure H Sound J Pulse R Saturation	1 Peripheral
4 Venous	0 Open 3 Percutaneous	5 Flow B Pressure J Pulse	0 Central 1 Peripheral 2 Portal 3 Pulmonary
4 Venous	0 Open 3 Percutaneous	R Saturation	0 Central 2 Portal 3 Pulmonary
4 Venous	X External	5 Flow B Pressure J Pulse	1 Peripheral
6 Lymphatic	0 Open 3 Percutaneous 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic	5 Flow	H Indocyanine Green Dye Z No Qualifier
6 Lymphatic	0 Open 3 Percutaneous 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic	B Pressure	Z No Qualifier
9 Respiratory	7 Via Natural or Artificial Opening X External	1 Capacity 5 Flow C Rate D Resistance L Volume	Z No Qualifier
B Gastrointestinal	7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic	8 Motility B Pressure G Secretion	Z No Qualifier
B Gastrointestinal	X External	S Vascular Perfusion	H Indocyanine Green Dye
D Urinary	7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic	3 Contractility 5 Flow B Pressure D Resistance L Volume	Z No Qualifier
G Skin and Breast	X External	S Vascular Perfusion	H Indocyanine Green Dye
H Products of Conception, Cardiac	7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic X External	4 Electrical Activity C Rate F Rhythm H Sound	Z No Qualifier
J Products of Conception, Nervous	7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic X External	2 Conductivity 4 Electrical Activity B Pressure	Z No Qualifier
Z None	7 Via Natural or Artificial Opening	K Temperature	Z No Qualifier
Z None	X External	K Temperature Q Sleep	Z No Qualifier