Precertification / Authorization Absent

The payer denies payment because required precertification, prior authorization, or notification was not obtained—or cannot be matched to the claim—before services were rendered.

What This Means in Behavioral Health

CO-197 is a top denial driver for RTC, detox, and PHP programs where every admission and level-of-care change requires a fresh authorization number. Behavioral health carve-outs often route auth to a separate utilization management vendor; claims submitted to the medical benefit with the wrong auth—or without one—receive CO-197 even when clinical care was appropriate. Cipher sees CO-197 spike when patients step from detox to residential or PHP to IOP without a new auth on file, and when retroactive auth requests are denied after services already rendered.

Root Causes

• Admission occurred before prior auth was approved or auth number was entered in the billing system
• Authorization expired mid-stay while census continued and claims billed past the end date
• LOC transition (detox → residential, PHP → IOP) without new authorization for the new program
• Auth obtained from wrong benefit administrator (carve-out vs medical benefit)
• Claim submitted with missing, transposed, or invalid authorization number on UB-04 or CMS-1500
• Emergency/urgent admission exception not documented per payer notification rules

How to Appeal

First verify whether auth existed but was not applied to the claim—a corrected claim with the valid auth number may resolve CO-197 without a formal appeal. If auth was genuinely missing, appeal with proof of timely notification, emergency admission criteria, or retroactive authorization approval. Include call reference numbers, fax confirmations, and portal screenshots. Many payers allow retro auth within 24–72 hours of admission for BH; document every payer touchpoint. Appeal deadlines are contract-specific—Cipher tracks remittance dates to avoid timely filing conflicts on the appeal itself.

Prevention Tips

• Run VOB and auth requirements before bed assignment—Cipher averages 9-minute eligibility turnaround on admissions workflows
• Map auth expiration dates to billed census days with daily UR collaboration, not monthly billing cycles
• Open new authorization workflows before LOC transition dates, not on the day codes change
• Store auth numbers in billing crosswalks tied to facility, program, and payer benefit administrator
• Reconcile every institutional claim's auth field in pre-payment review before submission