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ICD-10 Guide
ICD-10 CodesChapter 14: Diseases of the genitourinary systemN64

N64

Non-billable

Other disorders of breast

Chapter 14:Diseases of the genitourinary system

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/12/2025

Code Description

ICD-10 N64 is a used to indicate a diagnosis of other disorders of breast.

Key Diagnostic Point:

The ICD-10 Level 1 Category code N64 encompasses various disorders of the breast that do not fall under more specific classifications. This category includes conditions such as breast pain (mastalgia), galactorrhea, and other non-specific breast disorders that may not have a clear etiology. Clinically, these conditions can significantly affect a patient's quality of life and may require further investigation to rule out more serious underlying issues, such as malignancies or hormonal imbalances. Proper identification and coding of these disorders are essential for accurate treatment and management, as well as for ensuring appropriate reimbursement from insurance providers.

  • In practice, N64 codes are used when a patient presents with breast-related symptoms that do not align with other established diagnoses. Clinicians must be diligent in documenting the patient's symptoms, history, and any relevant examinations to support the use of these codes. Understanding the nuances of this category is crucial for healthcare providers, as it allows for better patient management and contributes to the overall understanding of breast health in the population. Accurate coding also aids in research and data collection regarding breast disorders, which can inform future healthcare policies and practices.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

    Audit Risk Factors

      Specialty Focus

      Medical Specialties

      Urology

      Documentation Requirements

      Detailed patient history, physical examination findings, diagnostic imaging results, and any hormone level tests.

      Common Clinical Scenarios

      Evaluation of breast pain in male patients, galactorrhea in females, and differential diagnosis for breast lumps or masses.

      Billing Considerations

      Ensure accurate differentiation between benign and malignant breast conditions and document any relevant hormonal assessments.

      Endocrinology

      Documentation Requirements

      Complete hormonal profile, patient history including menstrual cycle details, and previous treatments or medications.

      Common Clinical Scenarios

      Assessment of galactorrhea due to hormonal imbalances, evaluation of breast disorders related to endocrine disorders.

      Billing Considerations

      Document any endocrine-related symptoms that could correlate with breast conditions, particularly in patients with known hormonal disorders.

      Internal Medicine

      Documentation Requirements

      Comprehensive review of systems, family history of breast disorders, and psychosocial factors affecting breast health.

      Common Clinical Scenarios

      Management of breast pain in patients with chronic illnesses, evaluation of breast disorders as part of a systemic review.

      Billing Considerations

      Consider comorbid conditions that may contribute to breast symptoms and ensure thorough documentation to support the diagnosis.

      Related CPT Codes

      99213CPT Code

      Clinical Scenario

      Documentation Requirements

      Documentation of chief complaint, history of present illness, review of systems, and medical decision-making.

      88300CPT Code

      Clinical Scenario

      Documentation Requirements

      Clear documentation of the reason for the biopsy, patient consent, and pathology report.

      76942CPT Code

      Clinical Scenario

      Documentation Requirements

      Indication for the ultrasound, images taken, and interpretation of findings.

      99214CPT Code

      Clinical Scenario

      Documentation Requirements

      Detailed documentation of problem-focused history, examination findings, and management plan.

      ICD-10 Impact

      Diagnostic & Documentation Impact

      Enhanced Specificity

      ICD-10 Improvements

      The N64 code category has significant clinical and administrative implications. Clinically, accurate coding of breast disorders can lead to better patient outcomes through appropriate treatment pathways and monitoring. It also allows for the identification of trends in breast health, which can inform public health initiatives and resource allocation.
      Administratively, the correct use of N64 codes impacts healthcare organizations' reporting and reimbursement processes. As healthcare systems increasingly focus on quality measures and population health, understanding the prevalence and management of breast disorders becomes vital. This category's coding accuracy contributes to data integrity, which is essential for healthcare analytics and improving overall care delivery.

      ICD-9 vs ICD-10

      The N64 code category has significant clinical and administrative implications. Clinically, accurate coding of breast disorders can lead to better patient outcomes through appropriate treatment pathways and monitoring. It also allows for the identification of trends in breast health, which can inform public health initiatives and resource allocation. Administratively, the correct use of N64 codes impacts healthcare organizations' reporting and reimbursement processes. As healthcare systems increasingly focus on quality measures and population health, understanding the prevalence and management of breast disorders becomes vital. This category's coding accuracy contributes to data integrity, which is essential for healthcare analytics and improving overall care delivery.

      Reimbursement & Billing Impact

      reimbursement processes. As healthcare systems increasingly focus on quality measures and population health, understanding the prevalence and management of breast disorders becomes vital. This category's coding accuracy contributes to data integrity, which is essential for healthcare analytics and improving overall care delivery.

      Resources

      Clinical References

      • •
        American Urological Association Guidelines
      • •
        Endocrine Society Clinical Practice Guidelines
      • •
        American College of Obstetricians and Gynecologists (ACOG)
      • •
        National Breast Cancer Foundation Resources

      Coding & Billing References

      • •
        American Urological Association Guidelines
      • •
        Endocrine Society Clinical Practice Guidelines
      • •
        American College of Obstetricians and Gynecologists (ACOG)
      • •
        National Breast Cancer Foundation Resources

      Frequently Asked Questions

      What conditions are included in N64?

      N64 includes various disorders such as breast pain (mastalgia), galactorrhea, and other unspecified breast disorders that do not have a clear diagnosis.

      When should I use N64 codes?

      N64 codes should be used when a patient presents with breast-related symptoms that are not classified under more specific diagnoses, and when there is a need to document non-specific breast disorders.

      What documentation is required for N64?

      Documentation should include a detailed account of the patient's symptoms, history, physical examination findings, and any diagnostic tests performed to support the use of N64 codes.