ICD-10-PCS 2027 procedure code
BH31ZZZMagnetic Resonance Imaging (MRI) of Left Breast
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 BH31ZZZ
BH31ZZZ is the ICD-10-PCS code for a magnetic resonance imaging (MRI) procedure on the left breast using a none approach with none (qualifier: none). In ICD-10-PCS, magnetic resonance imaging (MRI) means computer reformatted digital display of multiplanar images developed from the capture of radiofrequency signals emitted by nuclei in a body site excited within a magnetic field.
In plain terms, this corresponds to magnetic resonance imaging of other and unspecified sites, the ICD-9-CM procedure title it maps to (88.97).
For a different body part, codes include BH30ZZZ (right breast), BH32ZZZ (bilateral breasts), BH3DZZZ (subcutaneous tissue, head/neck), BH3FZZZ (subcutaneous tissue, upper extremity), BH3GZZZ (subcutaneous tissue, thorax), BH3HZZZ (subcutaneous tissue, abdomen and pelvis) and 1 more.
The same procedure with a different approach is coded BH31YZZ (other contrast).
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
- HSkin, Subcutaneous Tissue and Breast
- 3. Type
- 3Magnetic Resonance Imaging (MRI)
Computer reformatted digital display of multiplanar images developed from the capture of radiofrequency signals emitted by nuclei in a body site excited within a magnetic field
- 4. Body Part
- 1Breast, Left
- 5. Contrast
- ZNone
- 6. Qualifier
- ZNone
- 7. Qualifier
- ZNone
Other versions of this procedure
Different body part
Different contrast
ICD-9-CM equivalent
Converter →- 88.97Magnetic resonance imaging of other and unspecified sitesapproximate
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 BH31ZZZ
Is BH31ZZZ a valid ICD-10-PCS code for 2027?
- Yes. BH31ZZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for BH31ZZZ?
- The CMS GEMs map BH31ZZZ to ICD-9-CM 88.97 (Magnetic resonance imaging of other and unspecified sites).