N63.4
Header — not billableUnspecified lump in breast, subareolar
The ICD-10 code for unspecified lump in breast, subareolar is N63.4.
N63.4 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 2 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- N63.0Unspecified lump in unspecified breast
- N63.1Unspecified lump in the right breastnon-billable header
- N63.2Unspecified lump in the left breastnon-billable header
- N63.3Unspecified lump in axillary tailnon-billable header
- N63.4Unspecified lump in breast, subareolarnon-billable header