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ICD-10-PCS 2027 procedure code

BN251ZZComputerized Tomography (CT Scan) of Facial Bones using Low Osmolar Contrast

✓ Valid for 2027

Short description: CT Scan of Facial Bone 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 BN251ZZ

BN251ZZ is the ICD-10-PCS code for a computerized tomography (CT scan) procedure on the facial bones using a low osmolar approach with none (qualifier: none). In ICD-10-PCS, computerized tomography (CT scan) means computer reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation.

In plain terms, this corresponds to computerized axial tomography of head, the ICD-9-CM procedure title it maps to (87.03).

For a different body part, codes include BN201ZZ (skull), BN231ZZ (bilateral orbits), BN261ZZ (mandible), BN291ZZ (bilateral temporomandibular joints) and BN2F1ZZ (temporal bones).

The same procedure with a different approach is coded BN250ZZ (high osmolar), BN25YZZ (other contrast) and BN25ZZZ (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
NSkull and Facial Bones
3. Type
2Computerized Tomography (CT Scan)

Computer reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation

4. Body Part
5Facial Bones
5. Contrast
1Low Osmolar
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 87.03Computerized axial tomography of headapproximate

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 BN251ZZ

Is BN251ZZ a valid ICD-10-PCS code for 2027?

Yes. BN251ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for BN251ZZ?

The CMS GEMs map BN251ZZ to ICD-9-CM 87.03 (Computerized axial tomography of head).