ICD-10-PCS Billable Code

BH01ZZZ

Plain Radiography Breast, Left to None with None, None Approach

Procedural Specifications

Clinical Axis Detail Definition
SectionB Imaging
Body SystemH Skin, Subcutaneous Tissue and Breast
Operation0 Plain Radiography
Body Part1 Breast, Left
ApproachZ None
DeviceZ None
QualifierZ None

Operation Definition

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

Procedure Overview

This family covers plain film X-rays of the skin, subcutaneous tissue, and breast, with mammography as the dominant example. A machine sends a small dose of X-rays through the tissue onto a detector plate, and denser structures like calcifications or masses appear lighter against the surrounding fat and glandular tissue.

Mammography is used for routine breast cancer screening in women without symptoms, as well as for diagnostic evaluation when a lump, pain, nipple discharge, or skin change has been noticed. Beyond the breast, plain films of skin and subcutaneous tissue can help locate a foreign body such as glass or metal fragments lodged just beneath the skin surface, which is a much less common but still valid use of this family.

Coders need to determine whether the study was a screening or diagnostic mammogram, since these follow different coding pathways despite using the same imaging technique. The report should also specify laterality, since one-sided and bilateral studies are captured differently. A frequent mistake is coding a diagnostic mammogram, ordered to work up a specific finding, as if it were a routine screening study, or overlooking that a foreign body localization film belongs in this same family rather than under a general musculoskeletal X-ray code.

Anatomy & Axis Detail

Breast, Left

Plain radiography of the left breast, or mammography, follows the same compression-based technique as imaging of the right side, using craniocaudal and mediolateral oblique views to visualize glandular and fatty tissue for screening or to work up a specific finding such as a palpable mass, skin change, or nipple retraction localized to that side. Laterality matters clinically because findings, prior surgeries, or implants may differ between breasts, and a study limited to the left side is typically ordered when a prior exam or symptom specifically points to that breast. As with the right side, interpretation is influenced by tissue density and any history of biopsy, surgery, or radiation that can alter the appearance of surrounding tissue. Documentation should note the views obtained and any asymmetry compared with prior imaging.

Coding & Documentation

Verify whether the encounter documentation supports screening versus diagnostic intent, since the physician order and report should state a reason such as a palpable mass or abnormal screening result for a diagnostic study. Laterality and view count should be checked against the report rather than assumed from prior visits.

Commonly Confused With

Diagnostic and screening mammograms are the pair most often mixed up in this family, distinguished only by the documented clinical reason for the exam rather than by the technique used, which is identical for both.