Skip to content
Dx

ICD-10-PCS 2027 procedure code

00164K2Bypass Cerebral Ventricle to Atrium with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass Cereb Vent to Atrium w Nonaut Sub, Perc 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 00164K2

00164K2 is the ICD-10-PCS code for a bypass procedure on the cerebral ventricle using a percutaneous endoscopic approach with nonautologous tissue substitute (qualifier: atrium). In ICD-10-PCS, bypass means altering the route of passage of the contents of a tubular body part.

In plain terms, this corresponds to ventricular shunt to circulatory system, the ICD-9-CM procedure title it maps to (02.32).

For a different body part, codes include 001U4K2 (spinal canal).

The same procedure with a different approach is coded 00160K2 (open) and 00163K2 (percutaneous).

With a different device, use 0016472 (autologous tissue substitute) and 00164J2 (synthetic substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 031 (Ventricular Shunt Procedures with MCC), DRG 032 (Ventricular Shunt Procedures with CC), DRG 033 (Ventricular Shunt Procedures without CC/MCC), DRG 820 (Lymphoma and Leukemia with Major O.R. Procedures with MCC), DRG 821 (Lymphoma and Leukemia with Major O.R. Procedures with CC) and DRG 822 (Lymphoma and Leukemia with Major O.R. Procedures without CC/MCC), under the surgical categories “Ventricular Shunt Procedures”, “Lymphoma and Leukemia with Major O.R. Procedures”, “Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures” and 2 more.

It was added in FY2018, effective October 1, 2017.

What each character means

1. Section
0Medical and Surgical
2. Body System
0Central Nervous System and Cranial Nerves
3. Operation
1Bypass

Altering the route of passage of the contents of a tubular body part

Rerouting contents of a body part to a downstream area of the normal route, to a similar route and body part, or to an abnormal route and dissimilar body part. Includes one or more anastomoses, with or without the use of a device

Includes: Coronary artery bypass, colostomy formation

4. Body Part
6Cerebral Ventricle

Includes: Aqueduct of Sylvius; Cerebral aqueduct (Sylvius); Choroid plexus; Ependyma; Foramen of Monro (intraventricular); Fourth ventricle; Interventricular foramen (Monro); Left lateral ventricle; Right lateral ventricle; Third ventricle

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
2Atrium

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.

ICD-9-CM equivalent

Converter →
  • 02.32Ventricular shunt to circulatory systemapproximate

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 00164K2

Is 00164K2 a valid ICD-10-PCS code for 2027?

Yes. 00164K2 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00164K2 an O.R. procedure?

Yes. 00164K2 is an O.R. procedure in MS-DRG v44.0.

What DRG does 00164K2 group to?

Depending on the principal diagnosis, 00164K2 can group to MS-DRG 031, MS-DRG 032, MS-DRG 033, MS-DRG 820, MS-DRG 821 and MS-DRG 822.

What is the ICD-9 procedure code for 00164K2?

The CMS GEMs map 00164K2 to ICD-9-CM 02.32 (Ventricular shunt to circulatory system).