ICD-10-PCS 2027 procedure code
4A168BZMonitoring of Lymphatic Pressure, Via Natural or Artificial Opening Endoscopic
Short description: Monitoring of Lymphatic Pressure, Endo
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 4A168BZ
4A168BZ is the ICD-10-PCS code for a monitoring procedure on the lymphatic using a via natural or artificial opening endoscopic approach with pressure. In ICD-10-PCS, monitoring means determining the level of a physiological or physical function repetitively over a period of time.
In plain terms, this corresponds to other diagnostic procedures on lymphatic structures, the ICD-9-CM procedure title it maps to (40.19).
For a different body part, codes include 4A1B8BZ (gastrointestinal), 4A1D8BZ (urinary) and 4A1J8BZ (products of conception, nervous).
The same procedure with a different approach is coded 4A160BZ (open), 4A163BZ (percutaneous) and 4A167BZ (via natural or artificial opening).
With a different device, use 4A1685Z (flow).
It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.
It was added in FY2018, effective October 1, 2017.
What each character means
- 1. Section
- 4Measurement and Monitoring
- 2. Body System
- APhysiological Systems
- 3. Operation
- 1Monitoring
Determining the level of a physiological or physical function repetitively over a period of time
- 4. Body System
- 6Lymphatic
- 5. Approach
- 8Via Natural or Artificial Opening Endoscopic
Entry of instrumentation through a natural or artificial external opening to reach and visualize the site of the procedure
- 6. Function / Device
- BPressure
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body system
Different approach
Different function / device
ICD-9-CM equivalent
Converter →- 40.19Other diagnostic procedures on lymphatic structuresapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2018 (effective 10/1/2017): Added
- No changes since FY2018.
Common questions about 4A168BZ
Is 4A168BZ a valid ICD-10-PCS code for 2027?
- Yes. 4A168BZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 4A168BZ?
- The CMS GEMs map 4A168BZ to ICD-9-CM 40.19 (Other diagnostic procedures on lymphatic structures).