1. ICD-10-CM Codes
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2. N00-N99
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3. N60-N65
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4. N64-
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5. 2023 ICD-10-CM Diagnosis Code N64.9

2023 ICD-10-CM Diagnosis Code N64.9

Disorder of breast, unspecified

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• N64.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM N64.9 became effective on October 1, 2022.
• This is the American ICD-10-CM version of N64.9 - other international versions of ICD-10 N64.9 may differ.

• Disease of breast
• Disorder of breast

• A non-neoplastic or neoplastic disorder that affects the breast. Representative examples of non-neoplastic disorders include fibrocystic disease, gynecomastia, and mastitis. Representative examples of neoplastic disorders include fibroadenoma, lobular neoplasia, carcinoma, lymphoma, and sarcoma.
• Disease or disorder of the breast.
• Most women experience breast changes at some time. Your age, hormone levels and medicines you take may cause lumps, bumps and discharges. If you have a breast lump, pain, discharge or skin irritation, see your health care provider. Minor and serious breast problems have similar symptoms. Although many women fear cancer, most breast problems are not cancer.some common causes of breast changes are
  • fibrocystic breast condition - lumpiness, thickening and swelling, often associated with a woman's period
  • cysts - fluid-filled lumps
  • fibroadenomas - solid, round, rubbery lumps that move easily when pushed, occurring most in younger women
  • intraductal papillomas - growths similar to warts near the nipple
  • blocked or clogged milk ducts
  • milk production when a woman is not breastfeeding
  • injury
  nih: national cancer institute
• Pathological processes of the breast.

• 600 Non-malignant breast disorders with cc/mcc
• 601 Non-malignant breast disorders without cc/mcc

Convert N64.9 to ICD-9-CM

• 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): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Disease, diseased - see also Syndrome
  • breast N64.9 - see also Disorder, breast
  • nipple N64.9
• Disorder (of) - see also Disease
  • breast N64.9
• Mastopathy, mastopathia N64.9

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