ICD-10-PCS 2027 procedure code
B2181ZZFluoroscopy of Left Internal Mammary Bypass Graft using Low Osmolar Contrast
Short description: Fluoroscopy of L Int Mamm Graft using L Osm Contrast
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 B2181ZZ
B2181ZZ is the ICD-10-PCS code for a fluoroscopy procedure on the left internal mammary bypass graft using a low osmolar approach with none (qualifier: none). In ICD-10-PCS, fluoroscopy means single plane or bi-plane real time display of an image developed from the capture of external ionizing radiation on a fluorescent screen. The image may also be stored by either digital or analog means.
In plain terms, this corresponds to coronary arteriography using a single catheter and coronary arteriography using two catheters, the ICD-9-CM procedure titles it maps to (88.55 and 88.56).
For a different body part, codes include B2101ZZ (coronary artery, single), B2111ZZ (coronary arteries, multiple), B2121ZZ (coronary artery bypass graft, single), B2131ZZ (coronary artery bypass grafts, multiple), B2141ZZ (right heart), B2151ZZ (left heart) and 3 more.
The same procedure with a different approach is coded B2180ZZ (high osmolar) and B218YZZ (other contrast).
It is a non-O.R. procedure that is part of the MS-DRG logic for DRG 212 (Concomitant Aortic and Mitral Valve Procedures), DRG 216 (Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with MCC), DRG 217 (Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with CC), DRG 218 (Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization without CC/MCC), DRG 233 (Coronary Bypass with Cardiac Catheterization or Open Ablation with MCC) and DRG 234 (Coronary Bypass with Cardiac Catheterization or Open Ablation without MCC), under the surgical categories “Concomitant Aortic and Mitral Valve Procedures”, “”, “Cardiac Defibrillator Implant with Cardiac Catheterization” and 1 more.
It has been valid since ICD-10-PCS took effect on October 1, 2015.
What each character means
- 1. Section
- BImaging
- 2. Body System
- 2Heart
- 3. Type
- 1Fluoroscopy
Single plane or bi-plane real time display of an image developed from the capture of external ionizing radiation on a fluorescent screen. The image may also be stored by either digital or analog means
- 4. Body Part
- 8Internal Mammary Bypass Graft, Left
- 5. Contrast
- 1Low Osmolar
- 6. Qualifier
- ZNone
- 7. Qualifier
- ZNone
Other versions of this procedure
Different body part
Different contrast
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 · Concomitant Aortic and Mitral Valve Procedures
MDC 05 · Diseases and Disorders of the Circulatory System
- 216Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with MCCRW 9.8832
- 217Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with CCRW 6.8061
- 218Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization without CC/MCCRW 6.8061
MDC 05 · Diseases and Disorders of the Circulatory System
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Circulatory Disorders Except AMI, with Cardiac Catheterization
ICD-9-CM equivalent
Converter →- 88.55Coronary arteriography using a single catheterapproximate
- 88.56Coronary arteriography using two cathetersapproximate
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 B2181ZZ
Is B2181ZZ a valid ICD-10-PCS code for 2027?
- Yes. B2181ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is B2181ZZ an O.R. procedure?
- No. B2181ZZ is designated non-O.R. in MS-DRG v44.0.
What DRG does B2181ZZ group to?
- Depending on the principal diagnosis, B2181ZZ can group to MS-DRG 212, MS-DRG 216, MS-DRG 217, MS-DRG 218, MS-DRG 233 and MS-DRG 234.
What is the ICD-9 procedure code for B2181ZZ?
- The CMS GEMs map B2181ZZ to ICD-9-CM 88.55 (Coronary arteriography using a single catheter) and 88.56 (Coronary arteriography using two catheters).