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ICD-10-PCS 2027 procedure code

03LL0ZZOcclusion of Left Internal Carotid Artery, Open Approach

✓ Valid for 2027O.R. procedure

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 03LL0ZZ

03LL0ZZ is the ICD-10-PCS code for a occlusion procedure on the left internal carotid artery using an open 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 surgical occlusion of vessels, other vessels of head and neck, the ICD-9-CM procedure title it maps to (38.82).

For a different body part, codes include 03L00ZZ (right internal mammary artery), 03L10ZZ (left internal mammary artery), 03L20ZZ (innominate artery), 03L30ZZ (right subclavian artery), 03L40ZZ (left subclavian artery), 03L50ZZ (right axillary artery) and 23 more.

The same procedure with a different approach is coded 03LL3ZZ (percutaneous) and 03LL4ZZ (percutaneous endoscopic).

With a different device, use 03LL0BZ (intraluminal device, bioactive), 03LL0CZ (extraluminal device) and 03LL0DZ (intraluminal device).

It is an operating-room procedure in the MS-DRG logic for DRG 020 (Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage with MCC), DRG 021 (Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage with CC), DRG 022 (Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage without CC/MCC), DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC) and DRG 025 (Craniotomy and Endovascular Intracranial Procedures with MCC), under the surgical categories “Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage”, “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures” and 1 more.

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
3Upper Arteries
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
LInternal Carotid Artery, Left

Includes: Caroticotympanic artery; Carotid sinus

5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

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

ICD-9-CM equivalent

Converter →
  • 38.82Other surgical occlusion of vessels, other vessels of head and neckapproximate

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 03LL0ZZ

Is 03LL0ZZ a valid ICD-10-PCS code for 2027?

Yes. 03LL0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 03LL0ZZ an O.R. procedure?

Yes. 03LL0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 03LL0ZZ group to?

Depending on the principal diagnosis, 03LL0ZZ can group to MS-DRG 020, MS-DRG 021, MS-DRG 022, MS-DRG 023, MS-DRG 024 and MS-DRG 025.

What is the ICD-9 procedure code for 03LL0ZZ?

The CMS GEMs map 03LL0ZZ to ICD-9-CM 38.82 (Other surgical occlusion of vessels, other vessels of head and neck).