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  6. 02120K9
  • Version 2025
  • Billable Code

2025 ICD-10-CM Procedure Code 02120K9

Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Nonautologous Tissue Substitute, Open Approach

ICD-10-PCS Code:
02120K9
ICD-10-PCS Code for:
Bypass 3 Cor Art from L Int Mammary w Nonaut Sub, Open
Is Billable?
Yes - Valid for Submission
Code Navigator:

02120K9 is a billable procedure code used to specify the performance of bypass coronary artery, three arteries from left internal mammary with nonautologous tissue substitute, open approach. The code is valid for the year 2025 for the submission of HIPAA-covered transactions. The procedure code involves altering the route of passage of the contents of a tubular body part. Procedure code explanation: 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 coronary artery bypass, colostomy formation

02120K9 PCS Table

In an PCS table each code is represented by up seven alphanumeric characters, with each character in the table respresenting different aspects of the procedure. In the table provided below, each row represents an individual character and includes information about the character's position, designation, label, and procedure notes. For this PCS table the procedure code is in the medical and surgical section and is part of the heart and great vessels body system, classified under bypass operation. The applicable bodypart for this procedure code is coronary artery, three arteries.

Position Designation Character Label Procedures Notes
1 Section 0 Medical and Surgical
2 Body System 2 Heart and Great Vessels
3 Operation 1 Bypass

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

Explanation:
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 BodyPart 2 Coronary Artery, Three Arteries  
5 Approach 0 Open

Involves:
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure
6 Device K Nonautologous 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 9 Internal Mammary, Left

Replaced Code

02120K9 was replaced in the 2025 ICD-10-PCS code set with the code(s):

  • 0212089 - Bypass 3 Cor Art from L Int Mammary w Zooplastic, Open
  • 0212089 - Bypass 3 Cor Art from L Int Mammary w Zooplastic, Open
  • 0212089 - Bypass 3 Cor Art from L Int Mammary w Zooplastic, Open
  • 0212089 - Bypass 3 Cor Art from L Int Mammary w Zooplastic, Open
  • 0212089 - Bypass 3 Cor Art from L Int Mammary w Zooplastic, Open
  • 0212089 - Bypass 3 Cor Art from L Int Mammary w Zooplastic, Open

Clinical Classification

Coronary artery bypass grafts (CABG)

CCSR Code: CAR003

Clinical Domain: Cardiovascular Procedures CAR contains 29 categories that include cardiovascular procedures such as percutaneous coronary intervention (PCI), coronary artery bypass graft (CABG), and aneurysm repair procedures.

Convert to ICD-9-PCS

Below are the ICD-9=PCS code(s) that most closely match this ICD-10-PCS code, based on the General Equivalence Mappings (GEMs). This ICD-10-PCS to ICD-9-PCS crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

ICD-9-PCS Code

Code: 3616

Approximate Flag: This is an approximate match. The ICD-9-PCS code reflects a close but not exact equivalent of the ICD-10-PCS procedure.

Other ICD-10-PCS Codes Used for Bypass Coronary Artery, Three Arteries


  • 0212083 Bypass Coronary Artery, Three Arteries from Coronary Artery with Zooplastic Tissue, Open Approach

  • 0212088 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Zooplastic Tissue, Open Approach

  • 0212089 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Zooplastic Tissue, Open Approach

  • 021208C Bypass Coronary Artery, Three Arteries from Thoracic Artery with Zooplastic Tissue, Open Approach

  • 021208F Bypass Coronary Artery, Three Arteries from Abdominal Artery with Zooplastic Tissue, Open Approach

  • 021208W Bypass Coronary Artery, Three Arteries from Aorta with Zooplastic Tissue, Open Approach

  • 0212093 Bypass Coronary Artery, Three Arteries from Coronary Artery with Autologous Venous Tissue, Open Approach

  • 0212098 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Autologous Venous Tissue, Open Approach

  • 0212099 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Autologous Venous Tissue, Open Approach

  • 021209C Bypass Coronary Artery, Three Arteries from Thoracic Artery with Autologous Venous Tissue, Open Approach

  • 021209F Bypass Coronary Artery, Three Arteries from Abdominal Artery with Autologous Venous Tissue, Open Approach

  • 021209W Bypass Coronary Artery, Three Arteries from Aorta with Autologous Venous Tissue, Open Approach

  • 02120A3 Bypass Coronary Artery, Three Arteries from Coronary Artery with Autologous Arterial Tissue, Open Approach

  • 02120A8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Autologous Arterial Tissue, Open Approach

  • 02120A9 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Autologous Arterial Tissue, Open Approach

  • 02120AC Bypass Coronary Artery, Three Arteries from Thoracic Artery with Autologous Arterial Tissue, Open Approach

  • 02120AF Bypass Coronary Artery, Three Arteries from Abdominal Artery with Autologous Arterial Tissue, Open Approach

  • 02120AW Bypass Coronary Artery, Three Arteries from Aorta with Autologous Arterial Tissue, Open Approach

  • 02120J3 Bypass Coronary Artery, Three Arteries from Coronary Artery with Synthetic Substitute, Open Approach

  • 02120J8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Synthetic Substitute, Open Approach

  • 02120J9 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Synthetic Substitute, Open Approach

  • 02120JC Bypass Coronary Artery, Three Arteries from Thoracic Artery with Synthetic Substitute, Open Approach

  • 02120JF Bypass Coronary Artery, Three Arteries from Abdominal Artery with Synthetic Substitute, Open Approach

  • 02120JW Bypass Coronary Artery, Three Arteries from Aorta with Synthetic Substitute, Open Approach

  • 02120K3 Bypass Coronary Artery, Three Arteries from Coronary Artery with Nonautologous Tissue Substitute, Open Approach

  • 02120K8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Nonautologous Tissue Substitute, Open Approach

  • 02120KC Bypass Coronary Artery, Three Arteries from Thoracic Artery with Nonautologous Tissue Substitute, Open Approach

  • 02120KF Bypass Coronary Artery, Three Arteries from Abdominal Artery with Nonautologous Tissue Substitute, Open Approach

  • 02120KW Bypass Coronary Artery, Three Arteries from Aorta with Nonautologous Tissue Substitute, Open Approach

  • 02120Z3 Bypass Coronary Artery, Three Arteries from Coronary Artery, Open Approach

  • 02120Z8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Open Approach

  • 02120Z9 Bypass Coronary Artery, Three Arteries from Left Internal Mammary, Open Approach

  • 02120ZC Bypass Coronary Artery, Three Arteries from Thoracic Artery, Open Approach

  • 02120ZF Bypass Coronary Artery, Three Arteries from Abdominal Artery, Open Approach

  • 0212344 Bypass Coronary Artery, Three Arteries from Coronary Vein with Drug-eluting Intraluminal Device, Percutaneous Approach

  • 02123D4 Bypass Coronary Artery, Three Arteries from Coronary Vein with Intraluminal Device, Percutaneous Approach

  • 0212444 Bypass Coronary Artery, Three Arteries from Coronary Vein with Drug-eluting Intraluminal Device, Percutaneous Endoscopic Approach

  • 0212483 Bypass Coronary Artery, Three Arteries from Coronary Artery with Zooplastic Tissue, Percutaneous Endoscopic Approach

  • 0212488 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Zooplastic Tissue, Percutaneous Endoscopic Approach

  • 0212489 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Zooplastic Tissue, Percutaneous Endoscopic Approach

  • 021248C Bypass Coronary Artery, Three Arteries from Thoracic Artery with Zooplastic Tissue, Percutaneous Endoscopic Approach

  • 021248F Bypass Coronary Artery, Three Arteries from Abdominal Artery with Zooplastic Tissue, Percutaneous Endoscopic Approach

  • 021248W Bypass Coronary Artery, Three Arteries from Aorta with Zooplastic Tissue, Percutaneous Endoscopic Approach

  • 0212493 Bypass Coronary Artery, Three Arteries from Coronary Artery with Autologous Venous Tissue, Percutaneous Endoscopic Approach

  • 0212498 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Autologous Venous Tissue, Percutaneous Endoscopic Approach

  • 0212499 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Autologous Venous Tissue, Percutaneous Endoscopic Approach

  • 021249C Bypass Coronary Artery, Three Arteries from Thoracic Artery with Autologous Venous Tissue, Percutaneous Endoscopic Approach

  • 021249F Bypass Coronary Artery, Three Arteries from Abdominal Artery with Autologous Venous Tissue, Percutaneous Endoscopic Approach

  • 021249W Bypass Coronary Artery, Three Arteries from Aorta with Autologous Venous Tissue, Percutaneous Endoscopic Approach

  • 02124A3 Bypass Coronary Artery, Three Arteries from Coronary Artery with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

  • 02124A8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

  • 02124A9 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

  • 02124AC Bypass Coronary Artery, Three Arteries from Thoracic Artery with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

  • 02124AF Bypass Coronary Artery, Three Arteries from Abdominal Artery with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

  • 02124AW Bypass Coronary Artery, Three Arteries from Aorta with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

  • 02124D4 Bypass Coronary Artery, Three Arteries from Coronary Vein with Intraluminal Device, Percutaneous Endoscopic Approach

  • 02124J3 Bypass Coronary Artery, Three Arteries from Coronary Artery with Synthetic Substitute, Percutaneous Endoscopic Approach

  • 02124J8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Synthetic Substitute, Percutaneous Endoscopic Approach

  • 02124J9 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Synthetic Substitute, Percutaneous Endoscopic Approach

  • 02124JC Bypass Coronary Artery, Three Arteries from Thoracic Artery with Synthetic Substitute, Percutaneous Endoscopic Approach

  • 02124JF Bypass Coronary Artery, Three Arteries from Abdominal Artery with Synthetic Substitute, Percutaneous Endoscopic Approach

  • 02124JW Bypass Coronary Artery, Three Arteries from Aorta with Synthetic Substitute, Percutaneous Endoscopic Approach

  • 02124K3 Bypass Coronary Artery, Three Arteries from Coronary Artery with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

  • 02124K8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

  • 02124K9 Bypass Coronary Artery, Three Arteries from Left Internal Mammary with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

  • 02124KC Bypass Coronary Artery, Three Arteries from Thoracic Artery with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

  • 02124KF Bypass Coronary Artery, Three Arteries from Abdominal Artery with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

  • 02124KW Bypass Coronary Artery, Three Arteries from Aorta with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

  • 02124Z3 Bypass Coronary Artery, Three Arteries from Coronary Artery, Percutaneous Endoscopic Approach

  • 02124Z8 Bypass Coronary Artery, Three Arteries from Right Internal Mammary, Percutaneous Endoscopic Approach

  • 02124Z9 Bypass Coronary Artery, Three Arteries from Left Internal Mammary, Percutaneous Endoscopic Approach

  • 02124ZC Bypass Coronary Artery, Three Arteries from Thoracic Artery, Percutaneous Endoscopic Approach

  • 02124ZF Bypass Coronary Artery, Three Arteries from Abdominal Artery, Percutaneous Endoscopic Approach

What is ICD-10-PCS?

The ICD-10 Procedure Coding System (ICD-10-PCS) is a catalog of procedural codes used by medical professionals for hospital inpatient healthcare settings. The Centers for Medicare and Medicaid Services (CMS) maintain the catalog in the U.S. releasing yearly updates. The 2025 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2024 through September 30, 2025.

Each ICD-10-PCS code has a structure of seven alphanumeric characters and contains no decimals. The first character defines the major "section". Depending on the "section" the second through seventh characters mean different things.