4A11X4Z – Monitoring of Peripheral Nervous Electrical Activity, External Approach
Coding Notes
Active
Billable, valid for HIPAA-covered transactions
PCS Table
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Section
4
Measurement and Monitoring
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Body System
A
Physiological Systems
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Operation
1
Monitoring
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| 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
|
GEM Conversion to ICD-9 PCS
Fs: 10000
–
Electroencephalogram