ICD-10-CM Code N63: Unspecified lump in breast and Related Diagnosis Codes.


The ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized coding system used when classifying diseases and medical conditions. Healthcare providers report these codes on Medical claims when diagnosing patient care.

Explore ICD-10-CM codes, organized by chapters based on body systems and medical conditions, as outlined in the International Classification of Diseases, Tenth Revision, Clinical Modification.

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Eclaims - ICD-10-CM Tabular Code List v1.0.0

A categorized list of ICD-10-CM codes organized by chapters based on body systems or medical conditions, according to the International Classification of Diseases, Tenth Revision, Clinical Modification.

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  • N63 - Unspecified lump in breast
    • N63.0 - Unspecified lump in unspecified breast
    • N63.1 - Unspecified lump in the right breast
      • N63.10 - Unspecified lump in the right breast, unspecified quadrant
      • N63.11 - Unspecified lump in the right breast, upper outer quadrant
      • N63.12 - Unspecified lump in the right breast, upper inner quadrant
      • N63.13 - Unspecified lump in the right breast, lower outer quadrant
      • N63.14 - Unspecified lump in the right breast, lower inner quadrant
      • N63.15 - Unspecified lump in the right breast, overlapping quadrants
    • N63.2 - Unspecified lump in the left breast
      • N63.20 - Unspecified lump in the left breast, unspecified quadrant
      • N63.21 - Unspecified lump in the left breast, upper outer quadrant
      • N63.22 - Unspecified lump in the left breast, upper inner quadrant
      • N63.23 - Unspecified lump in the left breast, lower outer quadrant
      • N63.24 - Unspecified lump in the left breast, lower inner quadrant
      • N63.25 - Unspecified lump in the left breast, overlapping quadrants
    • N63.3 - Unspecified lump in axillary tail
      • N63.31 - Unspecified lump in axillary tail of the right breast
      • N63.32 - Unspecified lump in axillary tail of the left breast
    • N63.4 - Unspecified lump in breast, subareolar
      • N63.41 - Unspecified lump in right breast, subareolar
      • N63.42 - Unspecified lump in left breast, subareolar

Note: The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes are developed and maintained by the Centers for Disease Control and Prevention (CDC). CDC's National Center for Health Statistics (NCHS) is responsible for the clinical modification of ICD-10 for use in the United States. The World Health Organization (WHO), which owns and publishes ICD-10, authorized NCHS to develop ICD-10-CM. All modifications to ICD-10 must conform to WHO's established ICD structure and conventions. All rights are reserved by the respective entities.