ICD-10-PCS 2027 procedure code
03LL4ZZOcclusion of Left Internal Carotid Artery, Percutaneous Endoscopic Approach
Short description: Occlusion of L Int Carotid, 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 03LL4ZZ
03LL4ZZ is the ICD-10-PCS code for a occlusion procedure on the left internal carotid artery 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 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 03L04ZZ (right internal mammary artery), 03L14ZZ (left internal mammary artery), 03L24ZZ (innominate artery), 03L34ZZ (right subclavian artery), 03L44ZZ (left subclavian artery), 03L54ZZ (right axillary artery) and 23 more.
The same procedure with a different approach is coded 03LL0ZZ (open) and 03LL3ZZ (percutaneous).
With a different device, use 03LL4BZ (intraluminal device, bioactive), 03LL4CZ (extraluminal device) and 03LL4DZ (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
- 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
- 03L04ZZInternal Mammary Artery, Right
- 03L14ZZInternal Mammary Artery, Left
- 03L24ZZInnominate Artery
- 03L34ZZSubclavian Artery, Right
- 03L44ZZSubclavian Artery, Left
- 03L54ZZAxillary Artery, Right
- 03L64ZZAxillary Artery, Left
- 03L74ZZBrachial Artery, Right
- 03L84ZZBrachial Artery, Left
- 03L94ZZUlnar Artery, Right
- 03LA4ZZUlnar Artery, Left
- 03LB4ZZRadial Artery, Right
Different approach
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 01 · Diseases and Disorders of the Nervous System · Intracranial Vascular Procedures with Principal Diagnosis Hemorrhage
MDC 01 · Diseases and Disorders of the Nervous System · Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis
MDC 01 · Diseases and Disorders of the Nervous System · Craniotomy and endovascular intracranial procedures
MDC 05 · Diseases and Disorders of the Circulatory System · Other Vascular Procedures
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
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 03LL4ZZ
Is 03LL4ZZ a valid ICD-10-PCS code for 2027?
- Yes. 03LL4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 03LL4ZZ an O.R. procedure?
- Yes. 03LL4ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 03LL4ZZ group to?
- Depending on the principal diagnosis, 03LL4ZZ 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 03LL4ZZ?
- The CMS GEMs map 03LL4ZZ to ICD-9-CM 38.82 (Other surgical occlusion of vessels, other vessels of head and neck).