4A1685H
4A1685H is a valid billable ICD-10 procedure code for Monitoring of Lymphatic Flow using Indocyanine Green Dye, Via Natural or Artificial Opening Endoscopic.
It is found in the 2025 version of the ICD-10 Procedure Coding System (PCS) and can be used in all HIPAA-covered transactions from Oct 01, 2024 - Sep 30, 2025.
Monitoring involves:
Determining the level of a physiological or physical function repetitively over a period of time.
Via Natural or Artificial Opening Endoscopic approach involves:
Entry of instrumentation through a natural or artificial external opening to reach and visualize the site of the procedure
ICD-10-PCS code structure for 4A1685H — See Table View
| 1: Section | 4 |
Measurement and Monitoring |
|---|---|---|
| 2: Body System | A |
Physiological Systems |
| 3: Root Operation | 1 |
Monitoring |
| 4: Body Part | 6 |
Lymphatic |
| 5: Approach | 8 |
Via Natural or Artificial Opening Endoscopic |
| 6: Device | 5 |
Flow |
| 7: Qualifier | H |
Indocyanine Green Dye |
See also