> ## Documentation Index
> Fetch the complete documentation index at: https://trust.denialbase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Insurer guides

> Payer-specific denial patterns, appeal requirements, deadlines, and contacts.

<Info>
  Each payer has its own denial patterns, appeal process, and preferred channels. These guides are built from our aggregated practice data — anonymized patterns across all Denialbase customers that use the given payer.
</Info>

## Available guides

<CardGroup cols={2}>
  <Card title="Kaiser Permanente" icon="hospital" href="/insurer-guides/kaiser-permanente">
    Direct integration + overturn patterns. Deep coverage — Kaiser is our first-class payer.
  </Card>

  <Card title="UnitedHealthcare" icon="hospital" href="/insurer-guides/unitedhealthcare">
    Common denial types, UHC-specific appeal packet requirements, portal details.
  </Card>
</CardGroup>

## Requesting a new insurer guide

We add payer guides based on customer demand. If you work with a payer that isn't covered here yet:

* Let us know at [product@denialbase.com](mailto:product@denialbase.com) with the payer name and rough volume.
* Share any payer-specific docs (provider manual, appeal packet requirements) you have.
* We typically publish a new guide within 30 days of customer request for payers with meaningful volume.

## What's in each guide

<Steps>
  <Step title="Common denial types">
    Which denial types are most frequent with this payer, and what their overturn rates look like.
  </Step>

  <Step title="Appeal requirements">
    Payer-specific forms, required attachments, submission channels.
  </Step>

  <Step title="Deadlines">
    First-level, second-level, and external-review deadlines. Including any payer-specific extensions.
  </Step>

  <Step title="Contacts & escalation paths">
    Appeals department phone, fax, portal URL. Peer-to-peer scheduling tips.
  </Step>

  <Step title="Tactical tips">
    What works, what doesn't — pulled from anonymized outcomes across all Denialbase practices.
  </Step>
</Steps>

## Methodology

* All data is **aggregated and anonymized** — no practice-identifiable information ever appears in a published guide.
* Overturn rates are minimums: we report the observed rate only when we have ≥ 50 historical appeals for the payer/denial-type combination.
* Deadlines are payer-policy-derived; we include the exact source (plan docs, regulator bulletin) in the guide.
* Content is refreshed quarterly or when a payer changes their appeal policy.