ICD-10-CM Diagnosis Code (2025)
Official Description for N63.42
Unspecified lump in left breast, subareolar
Parent Code (Less Specific):
About ICD-10-CM Code N63.42 (Unspecified lump in left breast)
ICD-10-CM code N63.42 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N63.42 became effective on October 1, 2024.
This page provides detailed information about N63.42 - Unspecified lump in left breast, subareolar. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Unspecified lump in left breast related to subareolar.