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ICD-10-PCS 2027 procedure code

4A1D8LZMonitoring of Urinary Volume, Via Natural or Artificial Opening Endoscopic

✓ Valid for 2027

Short description: Monitoring of Urinary Volume, 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 4A1D8LZ

4A1D8LZ is the ICD-10-PCS code for a monitoring procedure on the urinary using a via natural or artificial opening endoscopic approach with volume. 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 nonoperative genitourinary system measurements, the ICD-9-CM procedure title it maps to (89.29).

The same procedure with a different approach is coded 4A1D7LZ (via natural or artificial opening).

With a different device, use 4A1D83Z (contractility), 4A1D85Z (flow), 4A1D8BZ (pressure) and 4A1D8DZ (resistance).

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
DUrinary
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
LVolume
7. Qualifier
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 89.29Other nonoperative genitourinary system measurementsapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 4A1D8LZ

Is 4A1D8LZ a valid ICD-10-PCS code for 2027?

Yes. 4A1D8LZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 4A1D8LZ?

The CMS GEMs map 4A1D8LZ to ICD-9-CM 89.29 (Other nonoperative genitourinary system measurements).