CMS 2026 Alert: Quarterly ICD-10-CM & NCCI updates active.
About Us Editorial Policy Contact RCM Team
🔍 Quick Search
CO-165 - Denial Journal
← Back to Code Directory
CARC

CO-165

CARC Authorization
Quick Facts
Code
CO-165
Type
CARC
Category
Authorization
Status
Deactivated (historical)

What Does This Code Mean?

Referral absent or exceeded. This code was deactivated by X12 (as of 05/01/2018).

Recommended Next Steps

  1. This is a historical/deactivated code — no longer used on current claims. If seen on an old remittance, refer to the replacement code noted above where available.

More Denial Codes to Check

CARC CO-243 CARC CO-39 RARC M141 CARC CO-P16 RARC M19 CARC CO-15 RARC M34 CARC CO-197 CARC CO-283 RARC M62 CARC CO-185 RARC N54 RARC M60

Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.

🏠 Home 🔍 Lookup 📋 Appeals 📖 Guides
Scroll to Top