N64.9 ICD-10-CM Code: Disorder of breast, unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
N64.9Disorder of breast, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where N64.9 sits
- 1
Chapter 14
Diseases of the genitourinary system (N00-N99)
- 2
Section
Disorders of breast (N60-N65)
- 3
Category N64
Other disorders of breast
- 4
Code N64.9
Disorder of breast, unspecified
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for N64.9.
Code first
No “code first” instruction is listed for N64.9.
Use additional code
No “use additional code” instruction is listed for N64.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for N64.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for N64.9.
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 N64.9 mean?
N64.9 is the FY 2027 U.S. ICD-10-CM code for “Disorder of breast, unspecified.”
Is N64.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, N64.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is N64.9 located in ICD-10-CM?
N64.9 is listed in Chapter 14, Diseases of the genitourinary system (N00-N99), within Disorders of breast (N60-N65) (N60–N65), under category N64, Other disorders of breast.
What coding notes are listed for N64.9?
No inclusion terms are listed for N64.9 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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