N63 ICD-10-CM Code: Unspecified lump in breast
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
N63Unspecified lump in breast
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where N63 sits
- 1
Chapter 14
Diseases of the genitourinary system (N00-N99)
- 2
Section
Disorders of breast (N60-N65)
- 3
Category N63
Unspecified lump in breast
- 4
Code N63
Unspecified lump in breast
More specific choices
Codes under N63
N63 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
- Nodule(s) NOS in breast
Code first
No “code first” instruction is listed for N63.
Use additional code
No “use additional code” instruction is listed for N63.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for N63.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for N63.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code N63 mean?
N63 is the FY 2027 U.S. ICD-10-CM code for “Unspecified lump in breast.”
Is N63 a billable or specific ICD-10-CM code?
No. N63 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is N63 located in ICD-10-CM?
N63 is listed in Chapter 14, Diseases of the genitourinary system (N00-N99), within Disorders of breast (N60-N65) (N60–N65), under category N63, Unspecified lump in breast.
What coding notes are listed for N63?
Its listed inclusion terms are Nodule(s) NOS in breast. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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