Skip to content
Dx

ICD-10-PCS 2027 procedure code

BH04ZZZPlain Radiography of Left Single Mammary Duct

✓ Valid for 2027

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 BH04ZZZ

BH04ZZZ is the ICD-10-PCS code for a plain radiography procedure on the left single mammary duct using a none approach with none (qualifier: none). In ICD-10-PCS, plain radiography means planar display of an image developed from the capture of external ionizing radiation on photographic or photoconductive plate.

In plain terms, this corresponds to other mammography, the ICD-9-CM procedure title it maps to (87.37).

For a different body part, codes include BH00ZZZ (right breast), BH01ZZZ (left breast), BH02ZZZ (bilateral breasts), BH03ZZZ (right single mammary duct), BH05ZZZ (right multiple mammary ducts) and BH06ZZZ (left multiple mammary ducts).

The same procedure with a different approach is coded BH040ZZ (high osmolar), BH041ZZ (low osmolar) and BH04YZZ (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
0Plain Radiography

Planar display of an image developed from the capture of external ionizing radiation on photographic or photoconductive plate

4. Body Part
4Single Mammary Duct, Left
5. Contrast
ZNone
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 87.37Other mammographyapproximate

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 BH04ZZZ

Is BH04ZZZ a valid ICD-10-PCS code for 2027?

Yes. BH04ZZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for BH04ZZZ?

The CMS GEMs map BH04ZZZ to ICD-9-CM 87.37 (Other mammography).