1. ICD-10-CM Codes
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2. N00-N99 Diseases of the genitourinary system
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3. N60-N65 Disorders of breast
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4. N63- Unspecified lump in breast
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2018 ICD-10-CM Diagnosis Code N63

Unspecified lump in breast

2016 2017 2018 - Deleted Code 2018 - New Code Non-Billable/Non-Specific Code

• N63 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
• ICD-10-CM N63 is a new 2018 ICD-10-CM code that became effective on October 1, 2017.
• This is the American ICD-10-CM version of N63 - other international versions of ICD-10 N63 may differ.

• Bilateral breast lump
• Bilateral breast lumps
• Breast lump
• Breast lump in pregnancy
• Left breast lump
• Lump breast
• Lump in left breast
• Lump in right breast
• Mammographic breast mass
• Right breast lump

• A mass in the mammary gland, either mobile or immobile. Once the mass has reached the size of a small garden pea, it can be detected by palpation. With mammography a larger number of early breast cancers are being detected since this techniques allows detection prior to the point at which the mass can be felt. Breast masses are not always malignant. Benign fibrocystic breast disease is not uncommon. A fine needle biopsy aspiration can distinguish a cystic mass from a solid one.

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): Deleted code
• 2018 (effective 10/1/2017): New code

• Type 2 Excludes: R22.2
  ICD-10-CM Diagnosis Code R22.2

  Localized swelling, mass and lump, trunk

  2016 2017 2018 Billable/Specific Code

  Type 1 Excludes

  • intra-abdominal or pelvic mass and lump (R19.0-)
  • intra-abdominal or pelvic swelling (R19.0-)

  Type 2 Excludes

  • breast mass and lump (N63)

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.