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    v1.0.28
    OpenPayerBilling CodesDisorders of breastICD-10-CM n61-inflammatory-disorders-of-breast
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    ICD-10-CM Code For Inflammatory Disorders Of Breast: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group N61 includes diagnoses for inflammatory conditions of the breast such as mastitis, breast abscess, and other localized breast inflammations, covering both lactational and nonlactational presentations. These ICD-10-CM diagnosis codes are used to document clinical scenarios including acute infection, abscess formation, recurrent inflammation, and associated complications, capturing disease severity, organ involvement, or clinical complexity relevant to this group. Accurate coding within the ICD-10-CM N61 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM N61: Inflammatory Disorders Of Breast Overview

    The ICD-10-CM N61 group captures inflammatory conditions of the breast, including mastitis, breast abscess, and related inflammatory lesions. These diagnoses target breast tissue and associated structures, often related to infection, lactation, or noninfectious inflammatory processes. Accurate coding matters for clinical records and reimbursement because it documents severity, treatment setting, and resource use.

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    When to Use

    Use a code from this group when the clinical record documents breast inflammation, mastitis, or breast abscess as the primary diagnosis requiring evaluation or treatment. Select codes that reflect the presence of abscess, laterality, and lactational status when documented to convey clinical detail.

    ICD-10-CM Codes

    6 rows

    ICD-10-CM CodeDescription
    N61.0Mastitis without abscess
    N61.1Abscess of the breast and nipple
    N61.20Granulomatous mastitis, unspecified breast
    N61.21Granulomatous mastitis, right breast
    N61.22Granulomatous mastitis, left breast
    N61.23Granulomatous mastitis, bilateral breast

    DRG Codes

    2 rows

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

    Related Codes

    N60-BENIGN-MAMMARY-DYSPLASIA

    ICD-10-CM Code For Benign Mammary Dysplasia: Group Overview

    N62-HYPERTROPHY-OF-BREAST

    ICD-10-CM Code For Hypertrophy Of Breast: Group Overview

    N63-UNSPECIFIED-LUMP-IN-BREAST

    ICD-10-CM Code For Unspecified Lump In Breast: Group Overview

    N64-OTHER-DISORDERS-OF-BREAST

    ICD-10-CM Code For Other Disorders Of Breast: Group Overview

    N65-DEFORMITY-AND-DISPROPORTION-RECONSTRUCTED-BREAST

    ICD-10-CM Code For Deformity And Disproportion Of Reconstructed Breast: 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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