Clinical Guideline Research with Perplexity

1. Go to {{tool:Perplexity.url}} and click Sign up
2. Sign up with Google or email
3. You'll land on a search interface that looks like a chat window with a search bar

What you should see: A clean interface with a large search/prompt bar, a toggle between "Default" and "Pro" search modes, and focus filter options (All, Academic, Writing, Wolfram|Alpha, YouTube).

• Use Perplexity when you need current clinical guidelines, CMS regulation summaries, LOS benchmarks, ICD-10 code clinical context, or payer policy lookups: anything where you need citations and real-time web sources
• Use ChatGPT/Claude when you need writing drafts, formatting letters, or creating templates: anything where accuracy comes from your input, not the internet

In the search bar, type a specific clinical question. The key is precision: ask what you'd ask a medical librarian:

What are the current evidence-based criteria for inpatient psychiatric admission for major depressive disorder with suicidal ideation but no specific plan? Include CMS and ASAM guidelines where applicable.

Press Enter or click the search button.

What you should see: A synthesized 3–5 paragraph response with numbered citations. On the right side (or inline), you'll see source links. Click these to access the original documents.

Perplexity remembers your conversation context. Follow up with:

• "What does the Two-Midnight Rule say about this diagnosis specifically?"
• "Are there specific ICD-10 codes that strengthen the case for inpatient level for this presentation?"
• "What are the typical denial reasons for this type of admission and how have courts ruled on appeals?"

What you should see: Each follow-up builds on the previous answer with new citations.

Click the Focus dropdown and select Academic before searching. This restricts results to peer-reviewed sources: PubMed, clinical journals, evidence-based guidelines. Use this when you need citable clinical evidence for a complex appeal.

What you should see: Results from medical databases and clinical guidelines rather than general websites.

Copy the relevant passages (with their citation numbers) from Perplexity's response. When documenting in your appeal letter, note the source, e.g., "per ASAM criteria (source: [URL from Perplexity])" rather than citing "AI research." Always verify the source link is real before citing it.