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ICD-10-PCS 2027 procedure code

0CLC4ZZOcclusion of Left Parotid Duct, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Occlusion of Left Parotid Duct, Perc Endo Approach

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0CLC4ZZ

0CLC4ZZ is the ICD-10-PCS code for a occlusion procedure on the left parotid duct using a percutaneous endoscopic approach. In ICD-10-PCS, occlusion means completely closing an orifice or the lumen of a tubular body part.

In plain terms, this corresponds to other operations on salivary gland or duct, the ICD-9-CM procedure title it maps to (26.99).

For a different body part, codes include 0CLB4ZZ (right parotid duct).

The same procedure with a different approach is coded 0CLC0ZZ (open), 0CLC3ZZ (percutaneous), 0CLC7ZZ (via natural or artificial opening) and 0CLC8ZZ (via natural or artificial opening endoscopic).

With a different device, use 0CLC4CZ (extraluminal device) and 0CLC4DZ (intraluminal device).

It is an operating-room procedure in the MS-DRG logic for DRG 139 (Salivary Gland Procedures), under the surgical category “Salivary Gland Procedures”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
CMouth and Throat
3. Operation
LOcclusion

Completely closing an orifice or the lumen of a tubular body part

The orifice can be a natural orifice or an artificially created orifice

Includes: Fallopian tube ligation, ligation of inferior vena cava

4. Body Part
CParotid Duct, Left

Includes: Stensen's duct

5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different body part

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat · Salivary Gland Procedures

ICD-9-CM equivalent

Converter →
  • 26.99Other operations on salivary gland or ductapproximate

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 0CLC4ZZ

Is 0CLC4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0CLC4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CLC4ZZ an O.R. procedure?

Yes. 0CLC4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CLC4ZZ group to?

Depending on the principal diagnosis, 0CLC4ZZ can group to MS-DRG 139.

What is the ICD-9 procedure code for 0CLC4ZZ?

The CMS GEMs map 0CLC4ZZ to ICD-9-CM 26.99 (Other operations on salivary gland or duct).