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v1.0.0
ICD-10 Guide
ICD-10 CodesN63.32

N63.32

Billable

Unspecified lump in axillary tail of the left breast

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

Code Description

ICD-10 N63.32 is a billable code used to indicate a diagnosis of unspecified lump in axillary tail of the left breast.

Key Diagnostic Point:

The ICD-10 code N63.32 refers to an unspecified lump located in the axillary tail of the left breast. This condition is often associated with benign breast diseases, which can include various types of lumps such as cysts, fibroadenomas, or other non-cancerous growths. The axillary tail, also known as the axillary process, is an extension of breast tissue that extends into the axilla (armpit) area. Patients may present with a palpable mass, which can be discovered during a clinical breast exam or self-examination. It is crucial to differentiate between benign and malignant conditions through appropriate imaging studies, such as mammography or ultrasound, and possibly biopsy if indicated. The presence of a lump in this area may also be associated with other breast conditions, including mastitis or breast hypertrophy. Accurate diagnosis and coding are essential for effective treatment planning and management, as well as for ensuring proper reimbursement for services rendered.

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 for overlapping symptoms with other breast conditions
  • Documentation requirements for imaging and follow-up

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to document imaging results
  • Lack of follow-up notes or treatment plans
  • Misclassification of benign versus malignant conditions

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed pathology reports and imaging studies must be included.

Common Clinical Scenarios

Patients presenting with breast lumps requiring further evaluation for malignancy.

Billing Considerations

Ensure clear documentation of the diagnostic process and treatment plan.

Radiology

Documentation Requirements

Imaging reports must clearly indicate findings related to the lump.

Common Clinical Scenarios

Breast imaging for evaluation of palpable lumps.

Billing Considerations

Accurate coding of imaging studies performed in conjunction with the diagnosis.

Coding Guidelines

Inclusion Criteria

Use N63.32 When
  • According to ICD
  • 10 coding guidelines, N63
  • 32 should be used when a lump in the axillary tail of the left breast is identified but not further specified
  • It is important to document the clinical findings and any imaging studies performed to support the diagnosis

Exclusion Criteria

Do NOT use N63.32 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

77067CPT Code

Breast ultrasound

Clinical Scenario

Used to evaluate a palpable lump in the axillary tail.

Documentation Requirements

Report must include findings and recommendations.

Specialty Considerations

Radiologists must ensure accurate coding based on 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, improving the ability to track and manage benign breast diseases like those represented by N63.32.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of breast conditions, improving the ability to track and manage benign breast diseases like those represented by N63.32.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of breast conditions, improving the ability to track and manage benign breast diseases like those represented by N63.32.

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

What should be documented to support the use of N63.32?

Documentation should include clinical findings from physical exams, results from imaging studies, and any follow-up plans or treatments related to the lump.