C50.9
Non-billableMalignant neoplasm of breast of unspecified site
Malignant neoplasm of breast of unspecified site
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- connective tissue of breast
- Paget's disease of breast
- Paget's disease of nipple
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Use Additional Code
Additional codes that should follow this code
- code to identify estrogen, and other hormones and factors receptor status (Z17.-)
Child Codes (2)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code C50.9?
ICD-10-CM code C50.9 represents "Malignant neoplasm of breast of unspecified site". It is a non-billable header code — use a more specific child code for billing purposes.
Is C50.9 a billable code?
No, C50.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under C50.9.
What chapter is C50.9 in?
C50.9 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C50.9?
C50.9 has Excludes1 notes indicating codes that cannot be used together with it, including: skin of breast (C44.501, C44.511, C44.521, C44.591).
What are the subcategories under C50.9?
C50.9 has 2 child codes, including: C50.91 (Malignant neoplasm of breast of unspecified site, female), C50.92 (Malignant neoplasm of breast of unspecified site, male).
Are additional codes required with C50.9?
Yes, when using C50.9 you should also code: code to identify estrogen, and other hormones and factors receptor status (Z17.-).
What are the UMLS CUIs for C50.9?
C50.9 is linked to 1 UMLS Concept Unique Identifier: C2842134. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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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.