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ICD-10-PCS 2027 procedure code

B3021ZZPlain Radiography of Left Subclavian Artery using Low Osmolar Contrast

✓ Valid for 2027

Short description: Plain Radiography of L Subclavian Art 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 B3021ZZ

B3021ZZ is the ICD-10-PCS code for a plain radiography procedure on the left subclavian artery using a low osmolar approach with none (qualifier: none). In ICD-10-PCS, plain radiography means planar display of an image developed from the capture of external ionizing radiation on photographic or photoconductive plate.

In plain terms, this corresponds to arteriography of other intrathoracic vessels, the ICD-9-CM procedure title it maps to (88.44).

For a different body part, codes include B3001ZZ (thoracic aorta), B3011ZZ (right brachiocephalic-subclavian artery), B3031ZZ (right common carotid artery), B3041ZZ (left common carotid artery), B3051ZZ (bilateral common carotid arteries), B3061ZZ (right internal carotid artery) and 19 more.

The same procedure with a different approach is coded B3020ZZ (high osmolar), B302YZZ (other contrast) and B302ZZZ (none).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
BImaging
2. Body System
3Upper Arteries
3. Type
0Plain Radiography

Planar display of an image developed from the capture of external ionizing radiation on photographic or photoconductive plate

4. Body Part
2Subclavian Artery, Left
5. Contrast
1Low Osmolar
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 88.44Arteriography of other intrathoracic vesselsapproximate

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about B3021ZZ

Is B3021ZZ a valid ICD-10-PCS code for 2027?

Yes. B3021ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for B3021ZZ?

The CMS GEMs map B3021ZZ to ICD-9-CM 88.44 (Arteriography of other intrathoracic vessels).