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v1.0.0
ICD-10 Guide
DiagnosesAxillary Mass

Axillary Mass

ICD-10 Coding for Axillary Mass(N63.32, R22.3)

PRIMARY SPECIALTYRadiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Axillary Mass?
Essential facts and insights about Axillary Mass

Key Clinical Considerations:

  • Palpable mass in the axillary region
  • Possible associated symptoms: pain, swelling, or tenderness
  • Imaging findings suggestive of cystic or solid mass

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including duration and characteristics of the mass
  • Results of imaging studies (e.g., ultrasound, mammography)
  • Physical examination details including size, consistency, and mobility of the mass

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines: Use specific codes based on imaging results and clinical findings.
  • Common errors: Misclassifying benign masses as malignant or vice versa.

Code Exclusions

Important Exclusions

  • Excluded conditions: Lipomas, lymphadenopathy due to infection.
  • Alternative codes: Consider codes for specific types of neoplasms if applicable.

Related ICD-10 Codes

Primary Codes
N63.1
Unspecified lump in axilla
D49.6
Neoplasm of unspecified behavior of lymph nodes
Ancillary Codes
C77.3
Differential Codes
R22.3
R22.3
for axillary masses not involving breast tissue.
N63.32
N63.32
if breast tissue involvement is confirmed.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Radiology

Specialty Applications

  • Patient populations: Adults and adolescents presenting with axillary masses.
  • Clinical settings: Outpatient clinics, radiology departments, and surgical consultations.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include detailed patient history, imaging results, and physical exam findings.

Billing considerations?

Ensure accurate coding based on imaging findings and clinical documentation.