Skip to content

Denial library

Know what to inspect before you draft the appeal.

Guides for the denials behavioral-health teams see most, across IOP, PHP, residential, inpatient psychiatric, SUD and ABA care. Each one answers the question first, shows the deadlines by plan type, works through a fictional case and links its primary sources.

13 guides · free to read, no account · updated

Medical necessity

How to appeal a medical-necessity denial in behavioral health

What a “not medically necessary” decision means for IOP, PHP, residential, SUD and ABA care, what to request from the plan, the deadline by plan type, and how to answer each stated reason.

Level of care

IOP, PHP and residential level-of-care denials: how to appeal

When a payer says a lower level of care is enough, find the criteria set it applied, what it approved instead, and the record facts that show the lower level will not work.

Concurrent review

Continued-stay denials: how to respond while treatment is under way

When a payer stops authorizing days or sessions mid-treatment, the clock is short. Here is what the plan owes you before it cuts care, the fast paths by plan type, and what to send.

Peer-to-peer

Peer-to-peer review after a behavioral-health denial: how to prepare

A peer-to-peer can reverse a denial in one call, but windows are short and payer-specific. Here is who should be on the call, what the one-page brief needs, what to ask, and how to document it.

Substance use level of care

ASAM criteria denials: answering an SUD level-of-care decision dimension by dimension

When a plan says a residential, detox, PHP or IOP admission does not meet ASAM criteria, find the edition and the dimensions it applied, then answer each one with dated evidence.

Mental health level of care

LOCUS and CALOCUS denials: how to answer a mental-health level-of-care score

When a reviewer’s LOCUS, CALOCUS-CASII or ECSII ratings point to a lower level than the one you requested, get the ratings, compare them with your own dated assessment and answer each disputed dimension.

Urgent appeals

Expedited appeals for behavioral health: when you can get a decision in 72 hours

When a patient is in care or waiting to start it, the plan must decide an urgent appeal within 72 hours. Who can make a request urgent, how to file it by phone or fax, and what comes next.

Prior authorization

Behavioral-health prior-authorization denials: sort them, then appeal

Missing, expired, exceeded or refused authorizations need different fixes. Here is how to tell them apart, the decision clocks payers must now meet, and when it is really a medical-necessity appeal.

CO-50 reason code

How to appeal a CO-50 denial in behavioral health

CO-50 says the payer found the service not medically necessary and the provider, not the patient, carries the adjustment. Here is how to read it with its remark codes, when to correct instead of appeal, and the Medicare ABN angle.

Behavioral health

How to appeal a behavioral-health denial: build the packet

What goes into a review-ready appeal for IOP, PHP, residential, SUD or ABA care: the cover letter, the crosswalk, the clinician's statement, the right records and nothing more, and proof that it arrived.

Denial notices

What a denial notice must include, and what to do when it doesn't

The federal content rules for an adverse benefit determination notice by plan type, a five-minute check a biller or UR lead can run on every letter, and how to ask for what is missing.

Coding and billing

Behavioral-health coding denials: corrected claim or appeal?

Psychotherapy time codes, add-ons with E/M, per-diem program codes, ABA units and provider-type rules cause most behavioral-health coding denials. Here is how to tell a fix from a fight.

Denial management

Behavioral-health denial management: a workflow for billing and UR teams

A practical process for billing companies, RCM teams and in-house billing and UR at PHP, IOP, residential, SUD and ABA programs: triage every denial, pick the right path, control deadlines and fix the cause.

Inspect before you draft.