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ICD-10-PCS 2027 procedure code

B027Y0ZComputerized Tomography (CT Scan) of Cisterna using Other Contrast, Unenhanced and Enhanced

✓ Valid for 2027

Short description: CT Scan of Cisterna using Oth Contrast, Unenh, Enhance

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 B027Y0Z

B027Y0Z is the ICD-10-PCS code for a computerized tomography (CT scan) procedure on the cisterna using an other contrast approach with unenhanced and enhanced (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 other contrast radiogram of brain and skull, the ICD-9-CM procedure title it maps to (87.02).

For a different body part, codes include B020Y0Z (brain), B028Y0Z (cerebral ventricle(s)), B029Y0Z (sella turcica/pituitary gland) and B02BY0Z (spinal cord).

The same procedure with a different approach is coded B02700Z (high osmolar) and B02710Z (low osmolar).

With a different device, use B027YZZ (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
0Central Nervous System
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
7Cisterna
5. Contrast
YOther Contrast
6. Qualifier
0Unenhanced and Enhanced
7. Qualifier
ZNone

Other versions of this procedure

Different qualifier

ICD-9-CM equivalent

Converter →
  • 87.02Other contrast radiogram of brain and skullapproximate

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 B027Y0Z

Is B027Y0Z a valid ICD-10-PCS code for 2027?

Yes. B027Y0Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for B027Y0Z?

The CMS GEMs map B027Y0Z to ICD-9-CM 87.02 (Other contrast radiogram of brain and skull).