N64
Non-billableOther disorders of breast
Other disorders of breast
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •mechanical complication of breast prosthesis and implantT85.4
Child Codes (8)
N64.0Fissure and fistula of nipple
N64.1Fat necrosis of breast
N64.2Atrophy of breast
N64.3Galactorrhea not associated with childbirth
N64.4Mastodynia
N64.5Other signs and symptoms in breast
N64.8Other specified disorders of breast
N64.9Disorder of breast, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for other disorders of breast?
The ICD-10-CM code for other disorders of breast is N64. The full clinical description is "Other disorders of breast". N64 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code N64 mean?
ICD-10-CM code N64 represents “Other disorders of breast”. It is classified under Chapter 14: Diseases of the Genitourinary System and is a non-billable header code. Use a more specific child code for billing purposes.
Is N64 a billable code?
No, N64 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 8 child codes under N64.
What chapter is N64 in?
N64 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What codes cannot be used with N64?
N64 has Excludes1 notes indicating codes that cannot be used together with it, including: disorders of breast associated with childbirth (O91-O92).
What are the subcategories under N64?
N64 has 8 child codes, including: N64.0 (Fissure and fistula of nipple), N64.1 (Fat necrosis of breast), N64.2 (Atrophy of breast), N64.3 (Galactorrhea not associated with childbirth), and 4 more.
What are the UMLS CUIs for N64?
N64 is linked to 1 UMLS Concept Unique Identifier: C0156320. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N64 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other disorders of breast affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of N64?
N64 maps to the ICD-11 code: GB23.2 (Fat necrosis of breast).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.