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ICD-10-PCS 2027 procedure code

B31N1ZZFluoroscopy of Other Upper Arteries using Low Osmolar Contrast

✓ Valid for 2027

Short description: Fluoroscopy of Other Upper Arteries 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 B31N1ZZ

B31N1ZZ is the ICD-10-PCS code for a fluoroscopy procedure on the upper arteries, other 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 arteriography of other intrathoracic vessels and arteriography of other specified sites, the ICD-9-CM procedure titles it maps to (88.44 and 88.49).

For a different body part, codes include B3101ZZ (thoracic aorta), B3111ZZ (right brachiocephalic-subclavian artery), B3121ZZ (left subclavian artery), B3131ZZ (right common carotid artery), B3141ZZ (left common carotid artery), B3151ZZ (bilateral common carotid arteries) and 20 more.

The same procedure with a different approach is coded B31N0ZZ (high osmolar), B31NYZZ (other contrast) and B31NZZZ (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
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
NUpper Arteries, Other
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
  • 88.49Arteriography of other specified sitesapproximate

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 B31N1ZZ

Is B31N1ZZ a valid ICD-10-PCS code for 2027?

Yes. B31N1ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for B31N1ZZ?

The CMS GEMs map B31N1ZZ to ICD-9-CM 88.44 (Arteriography of other intrathoracic vessels) and 88.49 (Arteriography of other specified sites).