Guides
Practical walkthroughs on healthcare coding, billing, and data — written for developers, coders, and billers.
BillingCoding6 min read
Understanding CARC and RARC Denial Codes
How Claim Adjustment Reason Codes (CARC) and Remittance Advice Remark Codes (RARC) work together on an 835, with common examples and what to do about each.
September 15, 2026 · HealthCodeRef Team
Coding4 min read
ICD-10 Code Structure Explained
How ICD-10-CM codes are built — chapters, categories, subcategories, and the 7th-character extension — with real code examples broken down character by character.
September 15, 2026 · HealthCodeRef Team