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ICD-10-PCS 2027 procedure code

BL31ZZZMagnetic Resonance Imaging (MRI) of Lower Extremity Connective Tissue

✓ Valid for 2027

Short description: MRI of Low Extrem Connectiv Tiss

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 BL31ZZZ

BL31ZZZ is the ICD-10-PCS code for a magnetic resonance imaging (MRI) procedure on the connective tissue, lower extremity 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 musculoskeletal, the ICD-9-CM procedure title it maps to (88.94).

For a different body part, codes include BL30ZZZ (connective tissue, upper extremity), BL32ZZZ (tendons, upper extremity) and BL33ZZZ (tendons, lower extremity).

The same procedure with a different approach is coded BL31YZZ (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
LConnective Tissue
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
1Connective Tissue, Lower Extremity
5. Contrast
ZNone
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

Different contrast

ICD-9-CM equivalent

Converter →
  • 88.94Magnetic resonance imaging of musculoskeletalapproximate

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 BL31ZZZ

Is BL31ZZZ a valid ICD-10-PCS code for 2027?

Yes. BL31ZZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for BL31ZZZ?

The CMS GEMs map BL31ZZZ to ICD-9-CM 88.94 (Magnetic resonance imaging of musculoskeletal).