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ICD-10-PCS 2027 procedure code

021608RBypass Right Atrium to Left Pulmonary Artery with Zooplastic Tissue, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass R Atrium to L Pulm Art with Zooplastic, Open Approach

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 021608R

021608R is the ICD-10-PCS code for a bypass procedure on the right atrium using an open approach with zooplastic tissue (qualifier: left pulmonary artery). 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 creation of conduit between atrium and pulmonary artery, the ICD-9-CM procedure title it maps to (35.94).

For a different body part, codes include 021708R (left atrium), 021K08R (right ventricle), 021L08R (left ventricle), 021V08R (superior vena cava), 021W08R (thoracic aorta, descending) and 021X08R (thoracic aorta, ascending/arch).

The same procedure with a different approach is coded 021648R (percutaneous endoscopic).

With a different device, use 021609R (autologous venous tissue), 02160AR (autologous arterial tissue), 02160JR (synthetic substitute), 02160KR (nonautologous tissue substitute) and 02160ZR (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 228 (Other Cardiothoracic Procedures with MCC) and DRG 229 (Other Cardiothoracic Procedures without MCC), under the surgical category “Other Cardiothoracic Procedures”.

It was added in FY2017, effective October 1, 2016.

What each character means

1. Section
0Medical and Surgical
2. Body System
2Heart and Great Vessels
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
6Atrium, Right

Includes: Atrium dextrum cordis; Right auricular appendix; Sinus venosus

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
8Zooplastic Tissue
7. Qualifier
RPulmonary Artery, Left

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.

MDC 05 · Diseases and Disorders of the Circulatory System · Other Cardiothoracic Procedures

ICD-9-CM equivalent

Converter →
  • 35.94Creation of conduit between atrium and pulmonary arteryapproximate

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
  • FY2017 (effective 10/1/2016): Added
  • No changes since FY2017.

Common questions about 021608R

Is 021608R a valid ICD-10-PCS code for 2027?

Yes. 021608R is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 021608R an O.R. procedure?

Yes. 021608R is an O.R. procedure in MS-DRG v44.0.

What DRG does 021608R group to?

Depending on the principal diagnosis, 021608R can group to MS-DRG 228 and MS-DRG 229.

What is the ICD-9 procedure code for 021608R?

The CMS GEMs map 021608R to ICD-9-CM 35.94 (Creation of conduit between atrium and pulmonary artery).