Category Code
A Category Code is the first three characters of an ICD-10-CM code that identify a broad disease category or body system
Definition
A Category Code is the first three characters of an ICD-10-CM code that identify a broad disease category or body system
Why it matters
Category Code is part of the Coding vocabulary used across home health operations, documentation, and revenue cycle. Understanding it helps clinicians, QA leads, and administrators stay aligned on care quality and compliance.
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