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v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 14: Diseases of the genitourinary systemN63

N63

Billable

Unspecified lump in breast

Chapter 14:Diseases of the genitourinary system

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N63 is a billable code used to indicate a diagnosis of unspecified lump in breast.

Key Diagnostic Point:

The ICD-10 code N63 is used to classify an unspecified lump in the breast, which may arise from various benign conditions such as fibrocystic changes, fibroadenomas, or other benign breast diseases. This code is often utilized when a patient presents with a palpable mass in the breast that has not been definitively diagnosed through imaging or biopsy. The lump may be associated with symptoms such as breast pain, tenderness, or changes in nipple discharge. It is crucial for healthcare providers to conduct thorough evaluations, including clinical breast examinations and imaging studies like mammography or ultrasound, to rule out malignancy and determine the nature of the lump. In cases of mastitis or breast hypertrophy, the presence of a lump may also be noted, necessitating careful documentation to differentiate between these conditions. Accurate coding is essential for appropriate management and reimbursement, as well as for tracking the incidence of breast-related conditions in the population.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation of breast lumps
  • Need for differential diagnosis to rule out malignancy
  • Potential overlap with other breast conditions (e.g., mastitis, hypertrophy)
  • Documentation requirements for imaging and follow-up

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to specify the nature of the lump
  • Lack of imaging or follow-up documentation
  • Misuse of the code when a more specific diagnosis exists

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed clinical notes, imaging results, and biopsy reports.

Common Clinical Scenarios

Patients presenting with breast lumps requiring further evaluation for malignancy.

Billing Considerations

Ensure clear documentation of the diagnostic process and any referrals for further testing.

Radiology

Documentation Requirements

Imaging reports, including mammograms and ultrasounds, with clear descriptions of findings.

Common Clinical Scenarios

Imaging studies performed to evaluate breast lumps.

Billing Considerations

Accurate coding based on imaging findings and correlation with clinical symptoms.

Coding Guidelines

Inclusion Criteria

Use N63 When
  • According to official coding guidelines, N63 should be used when the lump is not specified as malignant or benign
  • Coders should ensure that the documentation supports the use of this code and that all relevant clinical information is included

Exclusion Criteria

Do NOT use N63 When
No specific exclusions found.

Related CPT Codes

77067CPT Code

Mammography, bilateral

Clinical Scenario

Used for screening or diagnostic evaluation of breast lumps.

Documentation Requirements

Mammography report detailing findings and recommendations.

Specialty Considerations

Radiologists should ensure correlation with clinical findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of breast conditions, including the ability to capture unspecified lumps. This has improved data collection and analysis for breast health issues.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of breast conditions, including the ability to capture unspecified lumps. This has improved data collection and analysis for breast health issues.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of breast conditions, including the ability to capture unspecified lumps. This has improved data collection and analysis for breast health issues.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should I use code N63?

Use code N63 when a patient presents with a lump in the breast that has not been definitively diagnosed as benign or malignant. Ensure that documentation supports the unspecified nature of the lump.