ICD-10-PCS 2027 procedure code
03RG4KZReplacement of Intracranial Artery with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach
Short description: Replace of Intracran Art with Nonaut Sub, 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 03RG4KZ
03RG4KZ is the ICD-10-PCS code for a replacement procedure on the intracranial artery using a percutaneous endoscopic approach with nonautologous tissue substitute. In ICD-10-PCS, replacement means putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part.
In plain terms, this corresponds to resection of vessel with replacement, intracranial vessels, the ICD-9-CM procedure title it maps to (38.41).
For a different body part, codes include 03R04KZ (right internal mammary artery), 03R14KZ (left internal mammary artery), 03R24KZ (innominate artery), 03R34KZ (right subclavian artery), 03R44KZ (left subclavian artery), 03R54KZ (right axillary artery) and 23 more.
The same procedure with a different approach is coded 03RG0KZ (open).
With a different device, use 03RG47Z (autologous tissue substitute) and 03RG4JZ (synthetic substitute).
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 2 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
- RReplacement
Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part
The body part may have been taken out or replaced, or may be taken out, physically eradicated, or rendered nonfunctional during the Replacement procedure. A Removal procedure is coded for taking out the device used in a previous replacement procedure
Includes: Total hip replacement, bone graft, free skin graft
- 4. Body Part
- GIntracranial Artery
Includes: Anterior cerebral artery; Anterior choroidal artery; Anterior communicating artery; Basilar artery; Circle of Willis; Internal carotid artery, intracranial portion; Middle cerebral artery; Middle meningeal artery, intracranial portion; Ophthalmic artery; Posterior cerebral artery; Posterior communicating artery; Posterior inferior cerebellar artery (PICA); Vertebral artery, intracranial portion
- 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
- KNonautologous Tissue Substitute
Includes: Acellular Hydrated Dermis; Bone bank bone graft; Cook Biodesign(R) Fistula Plug(s); Cook Biodesign(R) Hernia Graft(s); Cook Biodesign(R) Layered Graft(s); Cook Zenapro(tm) Layered Graft(s); Fish skin; Kerecis(R) (GraftGuide) (MariGen) (SurgiBind) (SurgiClose); MIRODERM(tm) Biologic Wound Matrix; Piscine skin; Tissue bank graft
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 03R04KZInternal Mammary Artery, Right
- 03R14KZInternal Mammary Artery, Left
- 03R24KZInnominate Artery
- 03R34KZSubclavian Artery, Right
- 03R44KZSubclavian Artery, Left
- 03R54KZAxillary Artery, Right
- 03R64KZAxillary Artery, Left
- 03R74KZBrachial Artery, Right
- 03R84KZBrachial Artery, Left
- 03R94KZUlnar Artery, Right
- 03RA4KZUlnar Artery, Left
- 03RB4KZRadial Artery, Right
Different approach
Different device
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 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
MDC 24 · Multiple Significant Trauma · Other O.R. Procedures for Multiple Significant Trauma
ICD-9-CM equivalent
Converter →- 38.41Resection of vessel with replacement, intracranial vesselsapproximate
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 03RG4KZ
Is 03RG4KZ a valid ICD-10-PCS code for 2027?
- Yes. 03RG4KZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 03RG4KZ an O.R. procedure?
- Yes. 03RG4KZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 03RG4KZ group to?
- Depending on the principal diagnosis, 03RG4KZ 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 03RG4KZ?
- The CMS GEMs map 03RG4KZ to ICD-9-CM 38.41 (Resection of vessel with replacement, intracranial vessels).