ICD10Check
CheckerBrowseOpen

N63

⚠ Non-billable (Header)

Unspecified lump in breast

Diseases of the genitourinary system (N00-N99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

Also Known As

Nodule(s) NOS in breast
✅ No additional coding notes for N63

Child Codes (5)

N63.0Unspecified lump in unspecified breastN63.1Unspecified lump in the right breastN63.2Unspecified lump in the left breastN63.3Unspecified lump in axillary tailN63.4Unspecified lump in breast, subareolar

🧪 Validate Combinations

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

Open in Checker →

Code Information

CodeN63
BillableNo — Header code
CategoryDiseases of the genitourinary system (N00-N99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes5

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)

N63 - Unspecified lump in breast | ICD-10-CM 2026 | ICD10Check