ICD10Check
CheckerBrowseOpen

N63.31

✓ Billable

Unspecified lump in axillary tail of the right breast

Diseases of the genitourinary system (N00-N99)

Check This Code
✅ No additional coding notes for N63.31

🧪 Validate Combinations

Add N63.31 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeN63.31
BillableYes
ParentN63.3
CategoryDiseases of the genitourinary system (N00-N99)
Excludes10 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)