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    OpenPayerBilling CodesAbnormal findings on diagnostic imaging and in function studies, without diagnosisICD-10-CM r92-abnormal-breast-imaging-findings
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    ICD-10-CM Code For Abnormal And Inconclusive Findings On Diagnostic Imaging Of Breast: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group R92 includes abnormal and inconclusive findings on diagnostic imaging of the breast, such as focal densities, calcifications, architectural distortions, and other nondefinitive imaging abnormalities. These ICD-10-CM diagnosis codes are used to document imaging-detected breast abnormalities that require further evaluation, capturing the nature of the imaging finding rather than a confirmed pathologic diagnosis. Accurate coding within the ICD-10-CM R92 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM R92: Abnormal And Inconclusive Findings On Diagnostic Imaging Of Breast Overview

    The ICD-10-CM R92 code group captures abnormal or inconclusive findings identified on breast imaging studies such as mammography, ultrasound, or magnetic resonance imaging. These entries represent imaging results rather than confirmed diagnoses and target the breast and associated tissues. Accurate coding is important to link imaging findings to subsequent clinical evaluation and to support appropriate reimbursement and claim processing.

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    When to Use

    Use a code from this group when imaging studies of the breast yield abnormalities or inconclusive results that require further diagnostic workup or follow-up. These codes are appropriate when the clinician documents the imaging finding itself rather than a confirmed disease.

    ICD-10-CM Codes

    17 rows

    ICD-10-CM CodeDescription
    R92.0Mammographic microcalcification found on diagnostic imaging of breast
    R92.1Mammographic calcification found on diagnostic imaging of breast
    R92.2Inconclusive mammogram
    R92.30Dense breasts, unspecified
    R92.311Mammographic fatty tissue density, right breast
    R92.312Mammographic fatty tissue density, left breast
    R92.313Mammographic fatty tissue density, bilateral breasts
    R92.321Mammographic fibroglandular density, right breast
    R92.322Mammographic fibroglandular density, left breast
    R92.323Mammographic fibroglandular density, bilateral breasts
    R92.331Mammographic heterogeneous density, right breast
    R92.332Mammographic heterogeneous density, left breast
    R92.333Mammographic heterogeneous density, bilateral breasts
    R92.341Mammographic extreme density, right breast
    R92.342Mammographic extreme density, left breast
    R92.343Mammographic extreme density, bilateral breasts
    R92.8Other abnormal and inconclusive findings on diagnostic imaging of breast

    DRG Codes

    2 rows

    DRG CodeDescription
    600Non-Malignant Breast Disorders with CC/MCC
    601Non-Malignant Breast Disorders without CC/MCC

    Typical Clinical Scenarios

    • A 52-year-old woman presents for routine screening mammography that identifies a new, well-circumscribed focal asymmetry in the upper outer quadrant of the left breast without clear correlates on physical exam. The finding is indeterminate on imaging and prompts additional diagnostic mammography and ultrasound to further characterize the abnormality; until further workup, an imaging-based abnormal finding code is assigned. Typical codes: R92.8.
    • A 38-year-old woman with a palpable breast lump undergoes diagnostic mammography and targeted ultrasound showing clustered microcalcifications in the right breast suspicious for malignancy but without a definitive mass; biopsy is planned to obtain tissue diagnosis. Because the imaging demonstrates suspicious microcalcifications requiring tissue sampling, an imaging abnormality code specific to calcifications is used. Typical codes: R92.3, R92.311, R92.312.
    • An 80-year-old frail patient in a long-term care facility has a screening mammogram that shows generalized increased breast density and multiple small, bilateral nodular densities compared with prior imaging, making interpretation inconclusive. Given the change relative to prior studies and inability to exclude a pathology without further invasive testing that may not be pursued, an inconclusive imaging finding code reflecting multiple or bilateral nodular densities is applied. Typical codes: R92.33, R92.332, R92.333.

    Related Codes

    R90-ABNORMAL-FINDINGS-CENTRAL-NERVOUS-SYSTEM

    ICD-10-CM Code For Abnormal Findings On Diagnostic Imaging Of Central Nervous System: Group Overview

    R91-ABNORMAL-IMAGING-FINDINGS-LUNG

    ICD-10-CM Code For Abnormal Findings On Diagnostic Imaging Of Lung: Group Overview

    R93-ABNORMAL-DIAGNOSTIC-IMAGING-FINDINGS

    ICD-10-CM Code For Abnormal Findings On Diagnostic Imaging Of Other Body Structures: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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